0 Assigned ID: 1036 ----- Attempting Submission 1 (Fri Apr 10 23:24:15 GMT 2015) ----- The number of orbits used exceeds the number allocated This attribute is not allowed to have this value: Calibration_Target = BIAS It is an Available option and cannot normally be used in a GO proposal. Target BIAS is no longer a valid selection This attribute cannot have this value due to other choices: Spectral_Element=DEF This value is by default illegal. Illegal selection: DEF. This attribute cannot have this value due to other choices: Optional_Parameter=COMPRESSION The combination of attributes chosen is illegal. This attribute cannot have this value due to other choices: Optional_Parameter=COMPRESSION=NONE The combination of attributes chosen is illegal. COMPRESSION is not a valid selection This attribute is not allowed to have this value: Calibration_Target = BIAS It is an Available option and cannot normally be used in a GO proposal. Target BIAS is no longer a valid selection This attribute cannot have this value due to other choices: Spectral_Element=DEF This value is by default illegal. Illegal selection: DEF. This attribute cannot have this value due to other choices: Optional_Parameter=COMPRESSION The combination of attributes chosen is illegal. This attribute cannot have this value due to other choices: Optional_Parameter=COMPRESSION=NONE The combination of attributes chosen is illegal. COMPRESSION is not a valid selection This attribute is not allowed to have this value: Calibration_Target = BIAS It is an Available option and cannot normally be used in a GO proposal. Target BIAS is no longer a valid selection This attribute cannot have this value due to other choices: Spectral_Element=DEF This value is by default illegal. Illegal selection: DEF. This attribute cannot have this value due to other choices: Optional_Parameter=COMPRESSION The combination of attributes chosen is illegal. This attribute cannot have this value due to other choices: Optional_Parameter=COMPRESSION=NONE The combination of attributes chosen is illegal. COMPRESSION is not a valid selection This attribute is not allowed to have this value: Calibration_Target = BIAS It is an Available option and cannot normally be used in a GO proposal. Target BIAS is no longer a valid selection This attribute cannot have this value due to other choices: Spectral_Element=DEF This value is by default illegal. Illegal selection: DEF. This attribute cannot have this value due to other choices: Optional_Parameter=COMPRESSION The combination of attributes chosen is illegal. This attribute cannot have this value due to other choices: Optional_Parameter=COMPRESSION=NONE The combination of attributes chosen is illegal. COMPRESSION is not a valid selection Reverted the proposal back to GO/SUPPORTED mode. -972206784 ----- Attempting Submission 1 (Tue Jul 21 06:24:33 GMT 2015) ----- HST Phase II Proposal 14159 (hst3c264_cyc23.apt) successfully submitted. Receipt: # 14159-1 ----- Attempting Submission 2 (Tue Jul 21 19:34:01 GMT 2015) ----- ----- Attempting Submission 3 (Mon Sep 07 17:13:12 GMT 2015) ----- ----- Attempting Submission 4 (Thu Sep 24 19:32:42 GMT 2015) ----- HST Phase II Proposal 14159 (14159-bias.apt) successfully submitted. Receipt: # 14159-4 ----- Attempting Submission 5 (Thu Sep 24 20:17:47 GMT 2015) ----- David Golimowski added 4 internal orbits to obtain WFC1-2K subarray bias frames for science data calibration. These orbits are charged to the Cycle 23 ACS Calibration Program as approved by HSTMO. 3C264 is a nearby radio galaxy with a prominent optical jet. Recent HST observations (May 2014) have revealed not only the fastest-ever superluminal speed (on kpc scales) of 7c for knot B, but also that knot B is in the very early stages of a collision with slow-moving downstream knot C (Meyer et al. 2015, Nature). This remarkable discovery represents the first strong evidence for the "internal shock" model for particle acceleration, a mechanism proposed to explain sources as diverse as gamma-ray bursts, microquasars, and jetted AGN. While a popular theoretical framework, such a collision has never actually been observed directly in any astrophysical object. Our recent HST imaging has captured the collision in its incipient stages, thus we have a unique opportunity to monitor a major shock collision as it unfolds. We propose 2 epochs of WFC3/UVIS (near-UV, B, and I band) imaging to monitor the optical-UV spectral energy distribution for the colliding knots and continue spatial proper motion measurements of the jet over the next 2-3 years. We also request 1 orbit of polarimetry in F606W with ACS/WFC in each epoch to monitor the polarization structure in the jet for changes as a result of the collision. The collision is expected to manifest in brightening and hardening of the optical spectrum and increasing polarization over the next several years, and our observations will allow us to evaluate the applicability, efficiency and physical characterization of the internal shock mechanism. Observations are of an optical jet approximately 2" long in the northeast direction, as part of a monitoring proposal for flaring behavior (follow-up time awarded in cycle 25). The field of view is dominated by the host galaxy, a nearby elliptical. The observations consist of two visits: the first is WFC3/UVIS imaging in three filters (F475W, F814W splitting the first orbit, F225W in the second orbit). The second visit is ACS/WFC polarimetry in F606W filter. Orient constraints are specified to avoid any risk of the central nucleus from producing diffraction spikes that run over the jet. Secondly, we request that the observations occur before March 2016 in order to evaluate the flux level of the jet, in case a rapid increase is detected which would warrant additional observations before the next scheduled observation in cycle 25. CALIBRATION ORBITS: As per STScI policy, 4 internal orbits have been added to this proposal for the purpose of obtaining subarray bias frames that are contemporaneous with the science observations. These internal orbits will be charged to STScI's Cycle 23 ACS Calibration Program, not to GO 14159. The ACS Instrument Team at STScI is responsible for producing superbias reference files from the bias frames obtained in this GO proposal. AGN/QUASARS 12 false false false false SUPPORTED GALAXY ELLIPTICAL JET NUCLEUS RADIO GALAXY This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F475W WFC3/UVIS Imaging No No F814W ACS/WFC Imaging No Yes F555W WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F475W WFC3/UVIS Imaging No No F814W ACS/WFC Imaging No Yes F555W POS-TARG DITHER 0.135 LINE false false 3 46.84 WFC3-UVIS-DITHER-LINE-3PT 1 false POS-TARG DITHER 0.173 LINE 0.112 false false 81.785 4 23.884 WFC3-UVIS-DITHER-BOX 2 false POS-TARG DITHER 3.011 LINE false false 2 85.28 ACS-WFC-DITHER-LINE 3 false 1446829543611 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit6836026664330046705.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. We used a 3-point dithering pattern for the sets of F475W (3 exp) and F814W (3 exp) observations in the first epoch. We used a 4-point dithering pattern for the 4 F225W exposures in the second orbit. Orient constraints are specified to avoid any risk of the central nucleus from producing diffraction spikes that run over the jet. We request observations in late 2015 in order to evaluate if the flux from the jet is rapidly increasing (i.e. flaring). POS TARGS are also used to put the target somewhat closer to the readout corner to minimize CTE. (Tic-Visit :proposal-id 14159 :visit-id "01" :proposal-version -1 :trans-version "20150609" :date "06-Nov-2015 12:05:42.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2887504 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14159 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14159 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2887 :al-overhead-at-end 120 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14159 :visit-id "01" :orbit-number 2 :pcs-time 222 :si-vis-utilization 2998 :al-overhead-at-end 122 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) true 2 0 1446829544848 Timing link suitability includes constraints ([Group (02 A4) Within 14.0 days]) The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit7009521069038261751.xml 1 orbit of ACS polarization in F606W filter. The observations cover the three polarization angle filters, with two exposures each, using a 2-point dither pattern to improve image quality and mitigate cosmic ray artifacts. Orient constraints are specified to avoid any risk of the central nucleus from producing diffraction spikes that run over the jet. We request observations in late 2015 in order to evaluate if the flux from the jet is rapidly increasing (i.e. flaring). (Tic-Visit :proposal-id 14159 :visit-id "02" :proposal-version -1 :trans-version "20150609" :date "06-Nov-2015 12:05:44.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14159 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14159 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2887 :al-overhead-at-end 0 :internal-dur-at-end 344 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3221 :pcs-gap 0 ) true 1 0 1446829545519 Timing link suitability includes constraints ([Sequence (A1 A2 A3 A4) within 1.0 days]) The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit5334781443268160411.xml (Tic-Visit :proposal-id 14159 :visit-id "A1" :proposal-version -1 :trans-version "20150609" :date "06-Nov-2015 12:05:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 0.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14159 :visit-id "A1" :obset-id "A1" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 14159 :visit-id "A1" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1783 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3210 :pcs-gap 0 ) true 1 0 All visits should be done within one anneal cycle in order to not have to repeat the subarray bias observations. 1446829546107 Timing link suitability includes constraints ([Sequence (A1 A2 A3 A4) within 1.0 days]) The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit6786684763988302992.xml (Tic-Visit :proposal-id 14159 :visit-id "A2" :proposal-version -1 :trans-version "20150609" :date "06-Nov-2015 12:05:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 0.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14159 :visit-id "A2" :obset-id "A2" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 14159 :visit-id "A2" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1783 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3210 :pcs-gap 0 ) true 1 0 All visits should be done within one anneal cycle in order to not have to repeat the subarray bias observations. 1446829546687 Timing link suitability includes constraints ([Sequence (A1 A2 A3 A4) within 1.0 days]) The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit6591336939054714803.xml (Tic-Visit :proposal-id 14159 :visit-id "A3" :proposal-version -1 :trans-version "20150609" :date "06-Nov-2015 12:05:46.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 0.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14159 :visit-id "A3" :obset-id "A3" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 14159 :visit-id "A3" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1783 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3210 :pcs-gap 0 ) true 1 0 All visits should be done within one anneal cycle in order to not have to repeat the subarray bias observations. 1446829547271 Timing link suitability includes constraints ([Group (02 A4) Within 14.0 days] [Sequence (A1 A2 A3 A4) within 1.0 days]) The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit8603123118533349170.xml (Tic-Visit :proposal-id 14159 :visit-id "A4" :proposal-version -1 :trans-version "20150609" :date "06-Nov-2015 12:05:47.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 0.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14159 :visit-id "A4" :obset-id "A4" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 14159 :visit-id "A4" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1783 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3210 :pcs-gap 0 ) true 1 0 All visits should be done within one anneal cycle in order to not have to repeat the subarray bias observations.