10635(  3) - 05/09/05 08:23  - [  1]

    PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS   ST ScI Use Only
                                                       ID:      10635
                                                       Version: 3
                                                       Check-in Date: 09-May-2005
                                                                      12:22:46

1.Proposal Title:
Galaxy Transformation as probed by Morphology and Velocity Fields of Distant Cluster
Galaxies
------------------------------------------------------------------------------------
2. Proposal For  3. Cycle  4. Parallel Pointing Tolerance
GO               14        <none>
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5. Investigators
                                                                                     Contact?
    PI: Dr. Bodo Ziegler                  Universitats-Sternwarte Gottingen
   CoI: Dr. Asmus Boehm                   Universitats-Sternwarte Gottingen             N
   CoI: Dr. Veronique Cayatte             Observatoire de Paris - Section de Meudon     N
   CoI: Dr. Laurent Chemin                Universite de Montreal                        N
   CoI: Dr. Klaus Jaeger                  Universitats-Sternwarte Gottingen             N
   CoI: Mr. Wolfgang Kapferer             Universitat Innsbruck, Institut fur           N
                                          Astronomie
   CoI: Dr. Harald Kuntschner             Space Telescope - European Coordinating       N
                                          Facility
   CoI: Prof. Sabine Schindler            Universitat Innsbruck, Institut fur           N
                                          Astronomie
   CoI: Mr. Miguel Verdugo                Universitats-Sternwarte Gottingen             N
   CoI: Dr. Daniela Vergani               Observatoire de Paris - Section de Meudon     N
                                                10635(  3) - 05/09/05 08:23  - [  2]


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6. Abstract

We seek to obtain ACS imaging of four distant (0.3<z<0.6) clusters of galaxies
within a 6'x6' field covered by a 2x2 mosaic to determine morphological and
structural parameters of late-type galaxies. We specifically concentrate on
peculiarities indicative of past or ongoing interaction processes. The ~90 target
galaxies have been (Period74) or will be (P75) observed with 3D-spectroscopy at ESO-
VLT yielding 2D-velocity fields with unprecedented spatial coverage and sampling.
The good spatial resolution of the ground-based data will be further enhanced by a
deconvolution method based on the proposed ACS images. The velocity field and the
morphology in restframe-UV light will reveal possible transformation mechanisms
affecting not only the stellar populations but also the mass distribution of the
galaxies. Additionally, it will be possible to pin down the nature of the
interaction (e.g. tidally or ram-pressure induced). This assessment gets supported
by our N-body/SPH simulations (including star formation) of different interaction
processes that allow the direct comparison of structural and kinematical
characteristics at each time step with the observations on an individual basis
taking into account all observational constraints for a given galaxy. All together,
we will be able to explore the relative efficiency of the various proposed
transformation phenomena. In the case of non-disturbed spirals, a rotation curve can
be extracted from the full 2D velocity field with unprecedented quality, from which
the maximum rotation speed can be derived with high confidence. In combination with
accurate size and luminosity determinations from the ACS images, we will be able to
establish the Tully-Fisher and Fundamental Plane relations of cluster spiral members
at cosmological epochs. At these distances cluster assembly is predicted to peak and
we can probe the galaxies' luminosity, size and mass evolution with robust methods.
Together with our already existing sample of ~200 distant (z<=1) spiral galaxies in
the field, we will put strong constraints on current theories of galaxy formation
and evolution in different environments.
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                                                10635(  3) - 05/09/05 08:23  - [  3]

  Observations Description
  ------------------------

     For each cluster field, we've used one FORS2 pointing, which encompasses
     6.5x6.5 arcmins (2.3x2.3 Mpc at z=0.5 for the concordance cosmology), to
     perform our 3D-spectroscopy. About 20 target galaxies are spread out within
     this field, with ~60% being cluster members due to geometrical constraints in
     the positioning of individual slitlets. However, the 40% field spirals are also
     very important as a reference sample and they will dramatically increase the
     number of distant galaxies with measured velocity fields. Therefore, it is
     essential to cover the entire FORS field with ACS-WFC, and it is important to
     have all our four clusters observed by HST. Only then will we eventually have a
     sample of ~45 cluster galaxies with both accurate morphology and 2D-velocity
     fields, of which ~15 spirals may have regular characteristics suitable for a TF
     analysis, while the other ones may be subject to some kind of interaction
     judging from our previous (long-slit) spectroscopy. As for our FDF and WHDF
     observations during cycle 11 and 12, this can be achieved by a mosaic of 4
     pointings with a small overlap area (4 arcsec) between different pointings. The
     offset from one pointing to another is ~3 arcmin, so that 4 different visits
     are necessary according to the HST manual. The analysis of our previous ACS
     imaging showed that 1 orbit per visit (pointing) is sufficient to gain the S/N
     and number of resolution elements needed for a robust determination of surface
     brightness, disk scale length, inclination and position angle of the target
     galaxies as described below. Besides a visual classification of morphologies we
     will quantitatively assess the galaxies' structure using the publicly available
     GIM2D (Simard et al. 2002 ApJ 142, 1) and GALFIT (Peng et al. 2002 AJ 124, 266)
     software packages that analyse the 2D-light distribution of a galaxy. Key
     morphological parameters are the bulge-to-total luminosity ratio (B/T), the
     concentration index and the asymmetry index (Abraham et al. 1996). We propose
     to use the high-throughput broad V-filter F606W for all our imaging, since it
     covers the restframe UV light distribution at z ~0.3-0.6 tracing the emission
     by young hot stars.That way, starforming regions and possible structural
     peculiarities stemming from interactions like tidal tails are readily
     discernible. At the same time, also the emission lines used for constructing
     the velocity fields will fall into the broad-V-filter, so that we can use the
     ACS imaging also for our deconvolution method to enhance the spatial resolution
     of the spectroscopy. Our measured velocity fields typically cover an area of
     7x3 arcsec. With that we reach 3-6 disk scale lengths in V corresponding to 2-4
     disk scale lengths of the emitting gas (Ryder & Dopita 1994, ApJ 430, 142). The
     average surface brightnesses of our spirals at the maximum disk scale length
     are distributed within 23<V<26; at 1 disk scale length within 21<V<24.
     According to the simulations of GIM2D (Simard et al., Fig.6) our faintest and
     smallest target galaxies will have a systematic error of ~5% and a random error
     of ~10% in B/T for a signal-to-noise ratio of S/N=10 per square arcsec. This is
     more than adequate for a quantitative morphological classification. We derived
     values of S/N >10 per square arcsec within an isophote of I=23 and S/N~50 at
     I=20 for FDF galaxies in our cycle 11 images which were taken with a total
     integration time of 2400 seconds per pointing. Typically, an exposure time of
     ~2400 secons can be achieved within a single orbit with an orbit visibility of
     the cluster fields of 54-60 min, guide star acquisition of 6 min, an ACS
     overhead of 4 min, and one SAM of 1 min. As for our previous observations, we
     propose to split each visit into 2 exposures with a small integer pixel offset
     to be able to remove cosmics and bad pixels and to bridge the intra-chip gap.
                                                10635(  3) - 05/09/05 08:23  - [  4]

     We do not want to do sub-pixel dithering because the GIM2D & GALFIT software is
     sensitive to the regridding pattern, and drizzle techniques do not accurately
     preserve the noise characteristics of the pixels. Another reason is that
     nothing would be gained by drizzling with respect to the determination of
     structural parameters (like disk scale length, half-light radius etc.) since
     the 2 SIGMA isophotes of even the faintest objects we do have spectra of cover
     >200 resolution elements on the ACS-WFC chip.

  Real Time Justification
  -----------------------


  Calibration Justification
  -------------------------


  Additional Comments
  -------------------

------------------------------------------------------------------------------------

                                                10635(  3) - 05/09/05 08:23  - [  5]

TARGET LIST    Fixed Targets
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Tar|   Target   |         Target        |            Target              |Coord   | Radial |             Flux data
No |    Name    |       Description     |           Position             |Eqnx    |  Vel.  |
------------------------------------------------------------------------------------------------------------------------------------
1   GAL-CLUS-    CLUSTER OF GALAXIES,    RA=04H13M9.0000S +/- 1", DEC=-   J2000    Z = 0.51 V = 22.0+/-0.1
    041306-      RICH CLUSTER, HIGH      65D52'0.00" +/- 1"
    654850       REDSHIFT CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

2   GAL-CLUS-    CLUSTER OF GALAXIES,    RA=04H12M38.0000S +/- 1", DEC=-  J2000    Z = 0.51 V = 22.0+/-0.1
    041306-      RICH CLUSTER, HIGH      65D52'0.00" +/- 1"
    655218       REDSHIFT CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

3   GAL-CLUS-    CLUSTER OF GALAXIES,    RA=04H13M9.0000S +/- 1", DEC=-   J2000    Z = 0.51 V = 22.0+/-0.1
    041232-      RICH CLUSTER, HIGH      65D48'43.00" +/- 1"
    654850       REDSHIFT CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

4   GAL-CLUS-    CLUSTER OF GALAXIES,    RA=04H12M38.0000S +/- 0.1",      J2000    Z = 0.51 V = 22.0+/-0.1
    041232-      RICH CLUSTER, HIGH      DEC=-65D48'43.00" +/- 0.1"
    655218       REDSHIFT CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

5   MS1008.1-    CLUSTER OF GALAXIES,    RA=10H10M40.0000S +/- 1", DEC=-  J2000    Z = 0.3  V = 22.0+/-0.1
    1224-POS1    RICH CLUSTER, HIGH      12D37'53.00" +/- 1"
                 REDSHIFT CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

6   MS1008.1-    CLUSTER OF GALAXIES,    RA=10H10M40.0000S +/- 1", DEC=-  J2000    Z = 0.3  V = 22.0+/-0.1
    1224-POS2    RICH CLUSTER, HIGH      12D40'55.00" +/- 1"
                 REDSHIFT CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

7   MS1008.1-    CLUSTER OF GALAXIES,    RA=10H10M26.0000S +/- 1", DEC=-  J2000    Z = 0.3  V = 22.0+/-0.1
    1224-POS3    RICH CLUSTER, HIGH      12D37'53.00" +/- 1"
                 REDSHIFT CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

8   MS1008.1-    CLUSTER OF GALAXIES,    RA=10H10M26.0000S +/- 1", DEC=-  J2000    Z = 0.3  V = 22.0+/-0.1
    1224-POS4    HIGH REDSHIFT CLUSTER,  12D40'55.00" +/- 1"
                 RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

9   GAL-CLUS-    CLUSTER OF GALAXIES,    RA=00H18M40.0000S +/- 1",        J2000    Z = 0.55 V = 22.0+/-0.1
    001840+16273 HIGH REDSHIFT CLUSTER,  DEC=+16D27'31.00" +/- 1"
    1            RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

10  GAL-CLUS-    CLUSTER OF GALAXIES,    RA=00H18M38.0000S +/- 1",        J2000    Z = 0.55 V = 22.0+/-0.1
    001840+16240 HIGH REDSHIFT CLUSTER,  DEC=+16D24'52.00" +/- 1"
    4            RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

11  GAL-CLUS-    CLUSTER OF GALAXIES,    RA=00H18M28.0000S +/- 1",        J2000    Z = 0.55 V = 22.0+/-0.1
    001828+16273 HIGH REDSHIFT CLUSTER,  DEC=+16D27'31.00" +/- 1"
    1            RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

12  GAL-CLUS-    CLUSTER OF GALAXIES,    RA=00H18M24.0000S +/- 1",        J2000    Z = 0.55 V = 22.0+/-0.1
    001826+16240 HIGH REDSHIFT CLUSTER,  DEC=+16D24'52.00" +/- 1"
    4            RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

                                                10635(  3) - 05/09/05 08:23  - [  6]

TARGET LIST    Fixed Targets
------------------------------------------------------------------------------------------------------------------------------------
Tar|   Target   |         Target        |            Target              |Coord   | Radial |             Flux data
No |    Name    |       Description     |           Position             |Eqnx    |  Vel.  |
------------------------------------------------------------------------------------------------------------------------------------
13  MS2137.3-    CLUSTER OF GALAXIES,    RA=21H40M22.0000S +/- 1", DEC=-  J2000    Z = 0.31 V = 22.0+/-0.1
    2353-POS1    HIGH REDSHIFT CLUSTER,  23D37'57.00" +/- 1"
                 RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

14  MS2137.3-    CLUSTER OF GALAXIES,    RA=21H40M22.0000S +/- 1", DEC=-  J2000    Z = 0.31 V = 22.0+/-0.1
    2353-POS2    HIGH REDSHIFT CLUSTER,  23D41'2.00" +/- 1"
                 RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

15  MS2137.3-    CLUSTER OF GALAXIES,    RA=21H40M7.0000S +/- 1", DEC=-   J2000    Z = 0.31 V = 22.0+/-0.1
    2353-POS3    HIGH REDSHIFT CLUSTER,  23D41'2.00" +/- 1"
                 RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

16  MS2137.3-    CLUSTER OF GALAXIES,    RA=21H40M7.0000S +/- 1", DEC=-   J2000    Z = 0.31 V = 22.0+/-0.1
    2353-POS4    HIGH REDSHIFT CLUSTER,  23D37'51.00" +/- 1"
                 RICH CLUSTER
    Coordinate Source: Other_Source: VLT/FORS image

                                                10635(  3) - 05/09/05 08:23  - [  7]

Patterns
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Pattern_Number: 1

                    Primary_Pattern                   Secondary_Pattern
Pattern_Type        ACS-WFC-DITHER-LINE
Pattern_Purpose     DITHER
Number_Of_Points    2
Point_Spacing       3.011
Line_Spacing        <none>
Coordinate_Frame    POS-TARG
Pattern_Orient      85.28
Angle_Between_Sides <none>
Center_Pattern      NO

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                                                10635(  3) - 05/09/05 08:23  - [  8]

Visit: 01
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 355.0D TO 5.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    GAL-CLUS-04 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     1306-654850                                                                                see below
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Sub Exposures
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Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
GAL-CLUS-041306-65  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       649.0 S
4850
GAL-CLUS-041306-65  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       649.0 S
4850
GAL-CLUS-041306-65  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       649.0 S
4850
GAL-CLUS-041306-65  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       649.0 S
4850
                                                10635(  3) - 05/09/05 08:23  - [  9]

Visit: 02
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 355.0D TO 5.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    GAL-CLUS-04 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     1306-655218                                                                                see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
GAL-CLUS-041306-65  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       649.0 S
5218
GAL-CLUS-041306-65  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       649.0 S
5218
GAL-CLUS-041306-65  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       649.0 S
5218
GAL-CLUS-041306-65  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       649.0 S
5218
                                                10635(  3) - 05/09/05 08:23  - [ 10]

Visit: 03
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 355.0D TO 5.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    GAL-CLUS-04 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     1232-654850                                                                                see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
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Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
GAL-CLUS-041232-65  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       649.0 S
4850
GAL-CLUS-041232-65  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       649.0 S
4850
GAL-CLUS-041232-65  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       649.0 S
4850
GAL-CLUS-041232-65  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       649.0 S
4850
                                                10635(  3) - 05/09/05 08:23  - [ 11]

Visit: 04
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 355.0D TO 5.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    GAL-CLUS-04 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     1232-655218                                                                                see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
GAL-CLUS-041232-65  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       649.0 S
5218
GAL-CLUS-041232-65  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       649.0 S
5218
GAL-CLUS-041232-65  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       649.0 S
5218
GAL-CLUS-041232-65  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       649.0 S
5218
                                                10635(  3) - 05/09/05 08:23  - [ 12]

Visit: 05
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 270.0D TO 285.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    MS1008.1-12 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     24-POS1                                                                                    see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
MS1008.1-1224-POS1  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       558.0 S
MS1008.1-1224-POS1  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       558.0 S
MS1008.1-1224-POS1  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       558.0 S
MS1008.1-1224-POS1  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       558.0 S
                                                10635(  3) - 05/09/05 08:23  - [ 13]

Visit: 06
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 270.0D TO 285.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    MS1008.1-12 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     24-POS2                                                                                    see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
MS1008.1-1224-POS2  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       558.0 S
MS1008.1-1224-POS2  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       558.0 S
MS1008.1-1224-POS2  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       558.0 S
MS1008.1-1224-POS2  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       558.0 S
                                                10635(  3) - 05/09/05 08:23  - [ 14]

Visit: 07
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 270.0D TO 285.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    MS1008.1-12 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     24-POS3                                                                                    see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
MS1008.1-1224-POS3  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       558.0 S
MS1008.1-1224-POS3  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       558.0 S
MS1008.1-1224-POS3  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       558.0 S
MS1008.1-1224-POS3  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       558.0 S
                                                10635(  3) - 05/09/05 08:23  - [ 15]

Visit: 08
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 270.0D TO 285.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
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Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    MS1008.1-12 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     24-POS4                                                                                    see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
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Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
MS1008.1-1224-POS4  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       558.0 S
MS1008.1-1224-POS4  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       558.0 S
MS1008.1-1224-POS4  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       558.0 S
MS1008.1-1224-POS4  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       558.0 S
                                                10635(  3) - 05/09/05 08:23  - [ 16]

Visit: 09
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 241.0D TO 260.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    GAL-CLUS-00 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     1840+162731                                                                                see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
GAL-CLUS-001840+16  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       560.0 S
2731
GAL-CLUS-001840+16  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       560.0 S
2731
GAL-CLUS-001840+16  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       560.0 S
2731
GAL-CLUS-001840+16  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       560.0 S
2731
                                                10635(  3) - 05/09/05 08:23  - [ 17]

Visit: 10
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 241.0D TO 260.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    GAL-CLUS-00 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     1840+162404                                                                                see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
GAL-CLUS-001840+16  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       560.0 S
2404
GAL-CLUS-001840+16  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       560.0 S
2404
GAL-CLUS-001840+16  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       560.0 S
2404
GAL-CLUS-001840+16  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       560.0 S
2404
                                                10635(  3) - 05/09/05 08:23  - [ 18]

Visit: 11
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 241.0D TO 260.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    GAL-CLUS-00 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     1828+162731                                                                                see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
GAL-CLUS-001828+16  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       560.0 S
2731
GAL-CLUS-001828+16  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       560.0 S
2731
GAL-CLUS-001828+16  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       560.0 S
2731
GAL-CLUS-001828+16  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       560.0 S
2731
                                                10635(  3) - 05/09/05 08:23  - [ 19]

Visit: 12
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 241.0D TO 260.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    GAL-CLUS-00 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     1826+162404                                                                                see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
GAL-CLUS-001826+16  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       560.0 S
2404
GAL-CLUS-001826+16  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       560.0 S
2404
GAL-CLUS-001826+16  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       560.0 S
2404
GAL-CLUS-001826+16  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       560.0 S
2404
                                                10635(  3) - 05/09/05 08:23  - [ 20]

Visit: 13
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 265.0D TO 275.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    MS2137.3-23 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     53-POS1                                                                                    see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
MS2137.3-2353-POS1  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       560.0 S
MS2137.3-2353-POS1  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       560.0 S
MS2137.3-2353-POS1  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       560.0 S
MS2137.3-2353-POS1  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       560.0 S
                                                10635(  3) - 05/09/05 08:23  - [ 21]

Visit: 14
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 265.0D TO 275.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    MS2137.3-23 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     53-POS2                                                                                    see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
MS2137.3-2353-POS2  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       560.0 S
MS2137.3-2353-POS2  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       560.0 S
MS2137.3-2353-POS2  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       560.0 S
MS2137.3-2353-POS2  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       560.0 S
                                                10635(  3) - 05/09/05 08:23  - [ 22]

Visit: 15
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 265.0D TO 275.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    MS2137.3-23 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     53-POS3                                                                                    see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
MS2137.3-2353-POS3  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       560.0 S
MS2137.3-2353-POS3  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       560.0 S
MS2137.3-2353-POS3  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       560.0 S
MS2137.3-2353-POS3  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       560.0 S
                                                10635(  3) - 05/09/05 08:23  - [ 23]

Visit: 16
     Visit Priority:      <none>
     Visit Requirements:  PCS MODE FINE; SCHED 30%; ORIENT 265.0D TO 275.0 D
     On Hold Comments:    <none>
     Additional Comments: <none>


Exposures
------------------------------------------------------------------------------------------------------------------------------------
Exp |   Target  | Instr  | Oper. | Aper    |Spectral|Central|           Optional           |Num|   Time   |       Special
Num |    Name   | Config | Mode  | or FOV  |Element |Waveln.|          Parameters          |Exp|          |     Requirements
------------------------------------------------------------------------------------------------------------------------------------
1    MS2137.3-23 ACS/WFC  ACCUM   WFC       F606W                                           1   2250 S     PATTERN 1 1
     53-POS4                                                                                    see below
------------------------------------------------------------------------------------------------------------------------------------

Sub Exposures
------------------------------------------------------------------------------------------------------------------------------------
Target             | Exp |Instr   | Oper. |  Aper  |Spectral|Cent.|Primary     |Secondary   |Iteration |CR-SPLIT  |Orbit  |Duration
Name               | Num |Config  | Mode  | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num       |Num       |Number |
------------------------------------------------------------------------------------------------------------------------------------
MS2137.3-2353-POS4  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       1          1       560.0 S
MS2137.3-2353-POS4  1     ACS/WFC  ACCUM   WFC      F606W          1            none         none       2          1       560.0 S
MS2137.3-2353-POS4  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       1          1       560.0 S
MS2137.3-2353-POS4  1     ACS/WFC  ACCUM   WFC      F606W          2            none         none       2          1       560.0 S
                                                10635(  3) - 05/09/05 08:23  - [ 24]

            Summary Form for Proposal  10635

  Item                         Used in this proposal
------------------------------------------------------------------------------------------------------------------------------------
  Apertures                    WFC
------------------------------------------------------------------------------------------------------------------------------------
  Configurations               ACS/WFC
------------------------------------------------------------------------------------------------------------------------------------
  Opmodes                      ACCUM
------------------------------------------------------------------------------------------------------------------------------------
  Proposal Category            GO
------------------------------------------------------------------------------------------------------------------------------------
  Special Requirements         PCS MODE FINE; SCHED 30%; ORIENT 355.0D TO 5.0 D PATTERN 1 1 PCS MODE FINE; SCHED 30%; ORIENT
                               270.0D TO 285.0 D PCS MODE FINE; SCHED 30%; ORIENT 241.0D TO 260.0 D PCS MODE FINE; SCHED 30%;
                               ORIENT 265.0D TO 275.0 D
------------------------------------------------------------------------------------------------------------------------------------
  Spectral Elements            F606W
------------------------------------------------------------------------------------------------------------------------------------
  Target Names                 GAL-CLUS-041306-654850 GAL-CLUS-041306-655218 GAL-CLUS-041232-654850 GAL-CLUS-041232-655218
                               MS1008.1-1224-POS1 MS1008.1-1224-POS2 MS1008.1-1224-POS3 MS1008.1-1224-POS4 GAL-CLUS-001840+162731
                               GAL-CLUS-001840+162404 GAL-CLUS-001828+162731 GAL-CLUS-001826+162404 MS2137.3-2353-POS1
                               MS2137.3-2353-POS2 MS2137.3-2353-POS3 MS2137.3-2353-POS4
------------------------------------------------------------------------------------------------------------------------------------