0 Assigned ID: 4868 ----- Attempting Submission 1 (Wed May 24 23:58:22 GMT 2023) ----- HST Phase I Proposal 4868 successfully submitted. Receipt: # 4868-1 ----- Attempting Submission 2 (Wed May 24 23:58:38 GMT 2023) ----- HST Phase I Proposal 4868 successfully submitted. Receipt: # 4868-2 ----- Attempting Submission 3 (Thu May 25 00:00:27 GMT 2023) ----- HST Phase I Proposal 4868 successfully submitted. Receipt: # 4868-3 ----- Attempting Submission 4 (Fri May 26 06:03:39 GMT 2023) ----- POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. POS TARG & PATTERN should be used carefully with ACS ramp filters as central wavelengths & transmission efficiencies vary within the apertures. 6th submission: To improve scheduling, I divided the 5th and 8th visits into two separate visits each, with the new ones labeled Visits 21 (contains orbits from previous Visit 5) and 22 (from previous Visit 8). -747510858 ----- Attempting Submission 1 (Wed Sep 13 20:23:07 GMT 2023) ----- HST Phase II Proposal 17430 successfully submitted. Receipt: # 17430-1 ----- Attempting Submission 2 (Thu Sep 28 21:52:54 GMT 2023) ----- HST Phase II Proposal 17430 successfully submitted. Receipt: # 17430-2 ----- Attempting Submission 3 (Thu Nov 09 22:45:37 GMT 2023) ----- HST Phase II Proposal 17430 successfully submitted. Receipt: # 17430-3 ----- Attempting Submission 4 (Thu Nov 30 19:45:07 GMT 2023) ----- HST Phase II Proposal 17430 successfully submitted. Receipt: # 17430-4 ----- Attempting Submission 5 (Thu Dec 07 19:54:24 GMT 2023) ----- HST Phase II Proposal 17430 successfully submitted. Receipt: # 17430-5 ----- Attempting Submission 6 (Sun Mar 02 00:36:12 GMT 2025) ----- There are two types of warnings, both regarding the use of dithering with my choice of filters. For my observations that require an ACS ramp filter or a WFC3 quad filter, I've tried to use very compact dithering patterns in order to minimize variations in central wavelength and effects from vignetting. Based on your expertise, I would really like to hear whether my current dither settings are sufficiently small for these observations. Pulling Back the Curtain Veiling Extreme UV Galaxies: Revealing the Mysterious Sources of He II Emission Our first deep observations of high redshift galaxies revealed exceptionally strong high-ionization nebular emission lines. Characterizing and describing the detailed observations of the earliest galaxies with JWST and future extremely large telescopes will hinge on our understanding of these lines. However, current stellar population synthesis models catastrophically fail to reproduce the observed strengths of these extreme emission lines, often invoking theories of rare phenomena to understand this emission. Fortunately, progress is possible: high-spatial-resolution maps of very-high-ionization emission can help constrain the options for these potentially exotic sources. Here, we propose 25 orbits of high-spatial-resolution HST imaging to map the spatial morphology of HeII 4686 emission in five nearby low-metallicity, highly-ionized galaxies selected for their strong HeII emission. We will compare the spatial distribution of HeII emission with maps of the stellar population and the nebular gas traced by the Balmer lines, [OII], and [OIII], in order to distinguish between photoionization from massive and metal-poor stars, X-ray binaries, shocks, Wolf Rayet stars, and AGN. The compact nature for many of these sources requires a high spatial resolution (< 50 pc) that is only possible with HST. These observations will provide the necessary constraints to create the next generation of ionizing radiation models in highly-ionized galaxies, like those common during the Epoch of Reionization. We propose high-resolution HST WFC3/UVIS and ACS/WFC imaging of five nearby extreme emission-line galaxies, so as to strongly constrain the source(s) of their extreme and, currently, unexplained He II 4686 emission. These observations will also allow us to relate the production of this excess emission to the stars and gas in these extreme galaxies and provide insights on the intense radiation observed from similar galaxies at high-z. -------------------------------------------- Targets: 1. J0944-0038 (z = 0.005) 2. J1016+3754 (z = 0.004) 3. J1044+0353 (z = 0.013) 4. J1418+2102 (z = 0.009) 5. J1545+0858 (z = 0.038) -------------------------------------------- Features of interest: - He II: For Targets 1, 2, and 4, He II can be mapped with the ACS/WFC FR462N ramp filter. To remove the stellar continuum and Ar IV contamination from our He II observations, we plan for a series of three observations with this filter, using slightly different central wavelengths chosen to observe: 1) He II 4686A + Ar IV 4711,4740AA + stellar continuum 2) Ar IV 4711,4740AA + stellar continuum 3) only the stellar continuum Target 3 already has archival He II observations. Target 5 uses the WFC3/UVIS F487N filter to map He II (with ArIV and continuum), while the ACS/WFC FR505N and FR462N ramp filters are used to observe ArIV (with continuum) and the continuum near He II, respectively. - Nebular emission: H-alpha 6563A, H-beta 4861A, [O II] 3726,9A, and [O III] 4959,5008A. Trace low and high ionization zones (HII regions). Balmer decrement can distinguish variations in dust attenuation. For Targets 1 and 2, these correspond to the WFC3/UVIS filters F665N, F487N, F373N, and F502N, respectively. For Target 3, H-beta with FQ492N, [O II] will be observed with FQ378N, and [O III] with F502N. There is archival H-alpha data for Target 3. Target 4 has archival data for H-alpha, H-beta, [O II], and [O III]. Target 5 needs ACS/WFC ramp filters: FR505N to map H-beta and [O III], FR656N to map H-alpha, and FR388N to map [O II]. - Continuum: We will observe the stellar continuum near multiple regions of interest. Targets 1, 2, 3, and 5, involve observations of the stellar continuum using WFC3/UVIS F275W (traces the young stellar population) and F336W (near O II). Targets 1, 2, and 5, also use the WFC3/UVIS filter F645N for the continuum near H-alpha. -------------------------------------------- Visits: 1. J0944: 1 visit with 4 total orbits -- orbit 1-2: seven WFC3/UVIS filters (F275W, F336W, F373N, F487N, F502N, F645N, F665N) and the UVIS2-2K2C-SUB aperture. These observations will use a 2-point dither pattern (WFC3-UVIS-DITHER-LINE), where each of the filters is used for one exposure in each orbit. -- orbit 3-4: a ACS/WFC filter (FR462N), set to three different central wavelengths: 4750A (He II + Ar IV + continuum), 4780A (Ar IV + continuum), and 4580A (continuum). WFC2-ORAMP aperture. This combination of observations will allow us to produce maps of the He II emission, without contamination from Ar IV and the stellar continuum. These observations will use a 2-point dither pattern (ACS-WFC-DITHER-LINE), where each of the filters is used for one exposure in each orbit. 2. J1016: 1 visit with 5 total orbits -- orbit 1-3: same seven WFC3/UVIS filters as used for Target 1 and the UVIS2-2K2C-SUB aperture. Unike Target 1, these observations will use a 3-point dither pattern (WFC3-UVIS-DITHER-LINE-3PT), where each of the filters is used for one exposure per orbit. -- orbit 4-5: ACS/WFC FR462N set to three different central wavelengths: 4740A (He II + Ar IV + continuum), 4765A (Ar IV + continuum), and 4580A (continuum). WFC2-ORAMP aperture. These observations will use a 2-point dither pattern (ACS-WFC-DITHER-LINE), where each of the filters is used for one exposure in each orbit. 3. J1044: 1 visit with 5 total orbits -- orbit 1: one WFC3/UVIS filter (FQ378N) and UVIS-QUAD aperture. 3-point dither with WFC3-UVIS-DITHER-LINE-3PT. -- orbit 2-5: three WFC3/UVIS filters (F502N, F275W, F336W) and UVIS2 aperture. 4-point dither with WFC3-UVIS-DITHER-BOX. 4. J1418: 1 visit with 4 total orbits -- ACS/WFC FR462N set to three different central wavelengths: 4760A (He II + Ar IV + continuum), 4790A (Ar IV + continuum), and 4600A (continuum). WFC2-ORAMP aperture. 4-point dither with ACS-WFC-DITHER-BOX, with an exposure from each filter in all four orbits. 5. J1545: 1 visit with 7 total orbits -- orbit 1-2: four WFC3/UVIS filters (F275W, F336W, F487N, F645N) + UVIS2 aperture. 2-point dither pattern WFC3-UVIS-DITHER-LINE, with an exposure from each filter in both orbits. -- orbit 3-4: two ACS/WFC filters (2xFR505N, FR656N) + WFC2-MRAMP aperture. 2-point dither pattern (ACS-WFC-DITHER-LINE) with an exposure from each of the 3 filters in each orbit (FR505N set at 5030A, FR505N at 5180A, and FR656N at 6800A). -- orbit 5-6: two ACS/WFC filters (FR388N, FR505N) + WFC2-MRAMP aperture. 2-point dither pattern (ACS-WFC-DITHER-LINE) with an exposure from each of the 2 filters in each orbit (FR388N set at 3870A and FR505N set at 4940A). -- orbit 7: one ACS/WFC filter (FR462N) + WFC2-ORAMP aperture. 2-point dither pattern (ACS-WFC-DITHER-LINE) with FR462N set to 4750 A, to observe the continuum near He II 4686. -------------------------------------------- Additional notes: To limit spatial variations of central wavelengths with the ramp filter, the dithers for observations with these filters have intentionally small, sub-pixel step sizes. The number of post-flash electrons to add to the ACS ramp and UVIS imaging is calculated filter-by-filter using the imaging ETCs. All investigators are experts in observational studies of extreme emission line galaxies, particularly focusing on nebular gas, its diagnostics, HeII emission, and stellar populations. The team has significant experience of photoionization modeling of UV emission lines and also shock modeling (Berg, Erb, Stark, James, Arellano-Cordova, Mingozzi, Senchyna) that will be required for the interpretation of the data. Several of our investigators have also pioneered observational campaigns of weak UV emission lines, in both the local universe and at high redshifts (Hayes, Stark, Berg, Erb, James, Senchyna). All also have significant expertise in imaging and spectroscopy with HST, having led more than 35 programs over the last decade. Of particular importance, co-Is Hayes and Chisholm have pioneered the use of HST ACS and WFC3 imaging to map Lya, MgII, and high-ionization (CIV and HeII) emission at low-redshifts (e.g., Hayes+2005,+2014, HST-GO-16209, HST-GO-16464), while co-Is Berg and Senchyna have been leading the field in detecting and characterizing extreme HeII-emitting galaxies. Galaxies Stellar Populations and the Interstellar Medium 6 false false false false true false false false false false SUPPORTED GALAXY STAR FORMING REGION This object was generated by the targetselector and retrieved from the NED database. J2000 J2000 GALAXY STAR FORMING REGION J2000 J2000 GALAXY STAR FORMING REGION J2000 J2000 GALAXY STAR FORMING REGION J2000 J2000 GALAXY STAR FORMING REGION J2000 J2000 WFC3/UVIS Imaging No No F373N WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F645N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F487N WFC3/UVIS Imaging No No F502N WFC3/UVIS Imaging No No F665N ACS/WFC RampFilter No No FR462N ACS/WFC RampFilter No No FR462N WFC3/UVIS Imaging No No F373N WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F645N WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F487N WFC3/UVIS Imaging No No F502N WFC3/UVIS Imaging No No F665N ACS/WFC RampFilter No No FR462N ACS/WFC RampFilter No No FR462N WFC3/UVIS Imaging No No FQ378N WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No FQ492N WFC3/UVIS Imaging No No F502N ACS/WFC RampFilter No No FR462N ACS/WFC RampFilter No No FR462N WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F487N WFC3/UVIS Imaging No No F645N ACS/WFC RampFilter No No FR462N ACS/WFC RampFilter No No FR388N ACS/WFC RampFilter No No FR505N ACS/WFC RampFilter No No FR656N POS-TARG DITHER 0.135 LINE false false 3 46.84 WFC3-UVIS-DITHER-LINE-3PT 2 false POS-TARG DITHER 0.145 LINE false false 2 46.84 WFC3-UVIS-DITHER-LINE 3 false POS-TARG DITHER 0.146 LINE false false 2 47.17 ACS-WFC-DITHER-LINE 4 false POS-TARG DITHER 0.173 LINE 0.112 false false 81.785 4 23.884 WFC3-UVIS-DITHER-BOX 5 false POS-TARG DITHER 0.171 compact version of ACS-WFC-Dither-Box, in order to minimize spatial variations on ramp filter central wavelengths LINE 0.171 false false 145.82 4 30.16 ACS-WFC-DITHER-BOX 6 false The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit15968399216045045623.xml 2 orbits: WFC3/UVIS 1713586665000 102.70007402249621 (Tic-Visit :proposal-id 17430 :visit-id "01" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:26:59.0" :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 985440 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "01" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2620 :al-overhead-at-end 178 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "01" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2619 :al-overhead-at-end 178 :internal-dur-at-end 652 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit13024168572298556452.xml 2 orbits: ACS/WFC 1731868520000 289.1452413360916 (Tic-Visit :proposal-id 17430 :visit-id "02" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:03.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 1705344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "02" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2625 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "02" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2623 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit10487611242690242470.xml 1 orbit: ACS/WFC HOPR 93005 repeat of visit 2. (Tic-Visit :proposal-id 17430 :visit-id "20" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:05.0" :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 852672 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "20" :obset-id "20" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "20" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2625 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit8956148659266482242.xml 3 orbits: WFC3/UVIS 1728712800000 307.0042947944903 (Tic-Visit :proposal-id 17430 :visit-id "03" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:08.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1478144 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "03" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2655 :al-overhead-at-end 176 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3039 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "03" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2654 :al-overhead-at-end 176 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3039 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "03" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2654 :al-overhead-at-end 176 :internal-dur-at-end 652 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3039 :pcs-gap 0 ) true 3 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit15868464314157987096.xml 2 orbits: ACS/WFC 1729126501000 306.0720002225347 (Tic-Visit :proposal-id 17430 :visit-id "04" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:10.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 1705344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "04" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2659 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3039 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "04" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2657 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3039 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit11653799620066719242.xml 1 orbit - WFC3/UVIS (Tic-Visit :proposal-id 17430 :visit-id "05" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:12.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 866240 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "05" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2623 :al-overhead-at-end 127 :internal-dur-at-end 352 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit4188068152743516313.xml 4 orbits - ACS/WFC (Tic-Visit :proposal-id 17430 :visit-id "06" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:14.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 3410688 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "06" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2648 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3028 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "06" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2647 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3028 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "06" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2647 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3028 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "06" :orbit-number 4 :pcs-time 380 :si-vis-utilization 2647 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3028 :pcs-gap 0 ) true 4 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit674879637832793434.xml 2 orbits - WFC3/UVIS (Tic-Visit :proposal-id 17430 :visit-id "07" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:15.0" :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 2309952 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "07" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2628 :al-overhead-at-end 127 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3010 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "07" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2628 :al-overhead-at-end 127 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3010 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit17536109554220351143.xml 2 orbits - ACS/WFC (Tic-Visit :proposal-id 17430 :visit-id "08" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 1705344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "08" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2630 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3010 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "08" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2630 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3010 :pcs-gap 0 ) true 2 0 /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit3583667232512264664.xml The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. 4 orbits (Tic-Visit :proposal-id 17430 :visit-id "21" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:18.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3464928 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "21" :obset-id "21" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "21" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2625 :al-overhead-at-end 127 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "21" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2624 :al-overhead-at-end 127 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "21" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2624 :al-overhead-at-end 127 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "21" :orbit-number 4 :pcs-time 380 :si-vis-utilization 2624 :al-overhead-at-end 127 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3005 :pcs-gap 0 ) true 4 0 only OIII 4959 (no OIII 5008) /private/var/folders/y4/7_fhjd2d5m9f5t31jy2_jwnxrhx9t2/T/OPVisit3419302675561096447.xml The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. 3 visits (Tic-Visit :proposal-id 17430 :visit-id "22" :proposal-version -1 :trans-version "20241216" :date "01-Mar-2025 18:27:19.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 1705344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17430 :visit-id "22" :obset-id "22" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17430 :visit-id "22" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2620 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3010 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "22" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2630 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3010 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17430 :visit-id "22" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2629 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3010 :pcs-gap 0 ) true 3 0