0 Assigned ID: 2149 ----- Attempting Submission 1 (Fri Apr 09 19:30:36 GMT 2021) ----- HST Phase I Proposal 2149 successfully submitted. Receipt: # 2149-1 ----- Attempting Submission 2 (Fri Apr 09 20:17:07 GMT 2021) ----- HST Phase I Proposal 2149 successfully submitted. Receipt: # 2149-2 Corrected the exposures so all FP-POS positions are used in each visit. Auto-adjusted the exposures so that they no-longer extened past visibility. -1191626608 ----- Attempting Submission 1 (Mon Jul 26 19:54:26 GMT 2021) ----- ----- Attempting Submission 2 (Tue Sep 06 17:27:54 GMT 2022) ----- A Propeller Driven by Spin-Down Energy in the Intermediate Polar FO Aquarii White dwarfs (WD) in intermediate polars (IPs) rotate rapidly and have sufficiently high magnetic-field strengths to channel gas from an accretion disk onto their magnetic poles. The WD in FO Aquarii, the so-called ``King of the IPs,'' began spinning down in 2015 after spinning up for the preceding quarter-century. Almost immediately, it began to drop into a series of low-accretion states in the optical and X-rays, behavior that was never observed when the WD was spinning up. The power generated by the spin-down is nearly 0.5 Solar luminosities, which raises a very basic question: where is this energy deposited? We hypothesize that during FO Aqr's low states, the WD powers an outflow that removes angular momentum from the WD, causing the observed spin-down. This scenario is similar to X-ray binaries in which a magnetized neutron star, after being spun-up by accretion, develops a centrifugal barrier that drives outflows or even a jet. FO Aqr's spin-down power is sufficiently high to drive a substantial outflow, and although optical spectra of FO Aqr during its recent low state hint at the existence of this feature, ultraviolet spectra are vastly more sensitive to outflowing gas because of the presence of C IV and Si IV resonance lines. We propose HST/COS observation of FO Aqr to test for outflow/jet signatures such as P-Cygni line profiles that were not present in UV spectra taken in 1995 when the WD was spinning up. We will observe the intermediate polar FO Aquarii with COS in time-tag mode. We will used the G140L grating centered on 1105 angstroms. The first visit will be 3 consecutive HST orbits that will cover 80% of the 4.85-h binary orbit. The gaps in phase coverage caused by Earth occultations will be filled by a second visit 30 orbits after visit 1. The brightness of FO Aqr has been near its all-time maximum of V=13.5 for decades. We have used FOS spectra taken in 1995 to estimate fluxes and count rates for the COS observations. We plan a NUV imaging acquisiton for both visits. The NUV flux based on XMM/OM and SWIFT/UVOT observations is 4e-14 erg/cm2/s/A, so we will use the BOA and MirrorA for the acqusitions. To get the S/N=30 image will take a 22sec exposure. The position and proper motion of FO Aqr is very well determined by Gaia EDR3. The proposal team has worked together for the past five years on a wide variety of cataclysmic variable star projects including studies of FO Aquarii. This group published the Kepler/K2 analysis of FO Aqr and began an independent study of the spin rate changes in the star. We discovered FO Aqr in its first known low state and initated spectroscopic and X-ray follow-up. Garnavich is an expert on supernovae and cataclysmic variable stars. He has led many successful HST programs. Kennedy is an expert in X-ray binaries and optical/X-ray studies of cataclysmic variable stars. Part of his PhD thesis was an HST/COS UV study of a CV with an orbital period below the hydrogen-rich period minimum. Littlefield has extensive experience with photometry of cataclysmic variable stars, particularly magnetic systems. He has published several analyses of K2/Kepler CV light curves and has expanded to TESS data. Stellar Physics and Stellar Types 6 false false true false false false false false AVAILABLE STAR INTERMEDIATE POLAR NO Coordinates and PM are from Gaia EDR3. The position has been corrected to epoch 2000 based on the measured proper motions. J2000 J2000 UNIDENTIFIED BLANK FIELD NO Coordinates and PM are from Gaia EDR3. The position has been corrected to epoch 2000 based on the measured proper motions. **This target is a blank piece of sky which is the bright object safe pointing and is 9.804 arcseconds away at a PA of 226.1 from V-FO-AQR.** J2000 UNIDENTIFIED BLANK FIELD NO Coordinates and PM are from Gaia EDR3. The position has been corrected to epoch 2000 based on the measured proper motions. **This target is a blank piece of sky which is the bright object safe pointing and is 9.804 arcseconds away at a PA 226.1 degrees from V-FO-AQR J2000 STAR INTERMEDIATE POLAR NO Coordinates and PM are from Gaia EDR3. The position has been corrected to epoch 2000 based on the measured proper motions. J2000 J2000 UNIDENTIFIED BLANK FIELD NO Coordinates and PM are from Gaia EDR3. The position has been corrected to epoch 2000 based on the measured proper motions. J2000 UNIDENTIFIED BLANK FIELD NO Coordinates and PM are from Gaia EDR3. The position has been corrected to epoch 2000 based on the measured proper motions. J2000 COS/FUV Spectroscopic No No G140L 1105 Timing link suitability includes constraints ([02 After 01 by 1.9 to 2.1 days]) The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. /System/Volumes/Data/solaris/user1/royle/OP-cache/16727-v01.xml This should be scheduled in evening local time. Flags need to be cleared during the work day. Weekends are to be avoided since the CS must clear the target within 24 hours of HST execution. Expected execution is ~ 300:02:00 1666838026000 91.0554033436465 (Tic-Visit :proposal-id 16727 :visit-id "01" :proposal-version -1 :trans-version "20220630" :date "08-Nov-2022 10:33:47.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 1209040 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2752 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "01" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "01" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) false 3 1 XMM OM and Swift UVOT provide a flux of 4e-14 erg/cm2/s/A at 2220 Ang. This is too bright for PSA, so we will use BOA and MIRRORA. This gives a S/N ratio of 30 in 22 sec. /System/Volumes/Data/solaris/user1/royle/OP-cache/16727-vB1.xml This visit is for BOP checking the safe target only and should not execute onboard HST (Tic-Visit :proposal-id 16727 :visit-id "B1" :proposal-version -1 :trans-version "20220630" :date "08-Nov-2022 10:33:48.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 1209040 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "B1" :obset-id "B1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "B1" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2752 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "B1" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "B1" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) false 3 0 XMM OM and Swift UVOT provide a flux of 4e-14 erg/cm2/s/A at 2220 Ang. This is too bright for PSA, so we will use BOA and MIRRORA. This gives a S/N ratio of 30 in 22 sec. This visit allocates and sets up the safe position offset slot for visit 01 which will use that slot. This S/C visit should go earlier in the week while visit 01 will be about 3 days later. The S/C visit will contain only one exposure. 1666572029000 91.0554033436465 false -1 -1 Timing link suitability includes constraints ([02 After 01 by 1.9 to 2.1 days]) The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. Visit 02 is timed to be 30 orbits after vist 01 so that a full binary orbit is covered. This should be scheduled in evening local time. Flags need to be cleared during the work day. Weekends are to be avoided since the CS must clear the target within 24 hours of HST execution. 1667020829000 91.05569000000003 (Tic-Visit :proposal-id 16727 :visit-id "02" :proposal-version -1 :trans-version "20220630" :date "06-Sep-2022 13:16:42.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 782880 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "02" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2752 :al-overhead-at-end 0 :internal-dur-at-end 57 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "02" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) false 2 0 XMM OM and Swift UVOT provide a flux of 4e-14 erg/cm2/s/A at 2220 Ang. This is too bright for PSA, so we will use BOA and MIRRORA. This gives a S/N ratio of 30 in 22 sec. Visit 02 is timed to be 30 orbits after vist 01 so that a full binary orbit is covered. This visit is for BOP checkng the safe target only and should not execute onboard HST (Tic-Visit :proposal-id 16727 :visit-id "02" :proposal-version -1 :trans-version "20220630" :date "06-Sep-2022 13:16:42.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 782880 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "02" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2752 :al-overhead-at-end 0 :internal-dur-at-end 57 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "02" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) false 2 0 XMM OM and Swift UVOT provide a flux of 4e-14 erg/cm2/s/A at 2220 Ang. This is too bright for PSA, so we will use BOA and MIRRORA. This gives a S/N ratio of 30 in 22 sec. This visit allocates and sets up the safe position offset slot for visit 02 which will use that slot. This S/C visit should go earlier in the week while visit 02 will be at least 3 days later. The S/C visit will contain only one exposure. 1666620932000 91.05569000000003 false -1 -1 /System/Volumes/Data/solaris/user1/royle/OP-cache/16727-v51.xml This should be scheduled in evening local time. Flags need to be cleared during the work day. Weekends are to be avoided since the CS must clear the target within 24 hours of HST execution. (Tic-Visit :proposal-id 16727 :visit-id "51" :proposal-version -1 :trans-version "20220630" :date "04-Aug-2023 11:59:40.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 1209040 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "51" :obset-id "51" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "51" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2752 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "51" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "51" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) false 3 1 XMM OM and Swift UVOT provide a flux of 4e-14 erg/cm2/s/A at 2220 Ang. This is too bright for PSA, so we will use BOA and MIRRORA. This gives a S/N ratio of 30 in 22 sec. /System/Volumes/Data/solaris/user1/royle/OP-cache/16727-v1B.xml This visit is for BOP checking the safe target only and should not execute onboard HST. (Tic-Visit :proposal-id 16727 :visit-id "1B" :proposal-version -1 :trans-version "20220630" :date "04-Aug-2023 11:59:41.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 1209040 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "1B" :obset-id "1B" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "1B" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2752 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "1B" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "1B" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) true 3 0 XMM OM and Swift UVOT provide a flux of 4e-14 erg/cm2/s/A at 2220 Ang. This is too bright for PSA, so we will use BOA and MIRRORA. This gives a S/N ratio of 30 in 22 sec. /System/Volumes/Data/solaris/user1/royle/OP-cache/16727-v52.xml Visit 52 is timed to be 30 orbits after vist 51 so that a full binary orbit is covered. This should be scheduled in evening local time. Flags need to be cleared during the work day. Weekends are to be avoided since the CS must clear the target within 24 hours of HST execution. (Tic-Visit :proposal-id 16727 :visit-id "52" :proposal-version -1 :trans-version "20220630" :date "04-Aug-2023 11:59:42.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 782880 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "52" :obset-id "52" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "52" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2752 :al-overhead-at-end 0 :internal-dur-at-end 57 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "52" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) false 2 1 XMM OM and Swift UVOT provide a flux of 4e-14 erg/cm2/s/A at 2220 Ang. This is too bright for PSA, so we will use BOA and MIRRORA. This gives a S/N ratio of 30 in 22 sec. /System/Volumes/Data/solaris/user1/royle/OP-cache/16727-v2B.xml Visit 52 is timed to be 30 orbits after vist 51 so that a full binary orbit is covered. This visit is for BOP checking the safe target only and should not execute onboard HST. (Tic-Visit :proposal-id 16727 :visit-id "2B" :proposal-version -1 :trans-version "20220630" :date "04-Aug-2023 11:59:43.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 782880 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "2B" :obset-id "2B" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "2B" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2752 :al-overhead-at-end 0 :internal-dur-at-end 57 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16727 :visit-id "2B" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2753 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) true 2 0 XMM OM and Swift UVOT provide a flux of 4e-14 erg/cm2/s/A at 2220 Ang. This is too bright for PSA, so we will use BOA and MIRRORA. This gives a S/N ratio of 30 in 22 sec. /System/Volumes/Data/solaris/user1/royle/OP-cache/16727-vS3.xml This visit allocates and sets up the safe position offset slot for visit 51 which will use that slot. This S/C visit should go 3-5 days before 51. The S/C visit will contain only 1 exposure. (Tic-Visit :proposal-id 16727 :visit-id "S3" :proposal-version -1 :trans-version "20220630" :date "04-Aug-2023 11:59:43.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "11" :si-bright-earth-limb-angle 20.0 :data-volume 0 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "S3" :obset-id "S3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "S3" :orbit-number 1 :pcs-time 383 :si-vis-utilization 5 :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 3145 :pcs-gap 0 ) false 1 0 /System/Volumes/Data/solaris/user1/royle/OP-cache/16727-vS4.xml This visit allocates and sets up the safe position offset slot for visit 52 which will use that slot. This S/C visit should go 3-5 days before 52. The S/C visit will contain only 1 exposure. (Tic-Visit :proposal-id 16727 :visit-id "S4" :proposal-version -1 :trans-version "20220630" :date "04-Aug-2023 11:59:44.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "11" :si-bright-earth-limb-angle 20.0 :data-volume 0 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16727 :visit-id "S4" :obset-id "S4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16727 :visit-id "S4" :orbit-number 1 :pcs-time 383 :si-vis-utilization 5 :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 3145 :pcs-gap 0 ) false 1 0