Scientific Category is a required field. Science Keywords: Select from 2 to 5 items. 0 Assigned ID: 3876 ----- Attempting Submission 1 (Fri Nov 25 15:13:11 GMT 2022) ----- Joint XMM/HST REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE This submission is to repeat the failed Visit 2, as approved by the TTRB on HOPR 92662. I've duplicated Visit 2 in the phase II file, please let me know if I can be of more help. 118603665 ----- Attempting Submission 1 (Wed Dec 21 14:34:07 GMT 2022) ----- ----- Attempting Submission 2 (Mon Nov 20 08:10:25 GMT 2023) ----- our target has a well known position A transient outflow in the short-period binary UW CrB Studying outflows of X-ray binaries is important for understanding the physics of accretion, the evolution of compact binaries, and dynamics of the local interstellar medium. UW CrB is a high-inclination low-mass X-ray binary with an orbital period of 111 min, for which we have recently identified a transient UV outflow and which shows hints of outflows at X-ray and optical wavelengths. We propose a comprehensive XMM-Newton (120 ks), HST (6 orbits) and VLT (6 hr) campaign to investigate the transient and multi-wavelength character of the outflow in UW CrB, aiming to determine the nature and physical properties of the outflow. Our proposed study will greatly enhance our general understanding of outflows in low-mass X-ray binaries. This programme consists of 6 HST orbits, spread over 3 visits that consist of 2 orbits each. Each first orbit will consist of an ACQ/IMAGE taken with COS/NUV and complemented with the spectroscopic exposures taken with the COS/FUV G140L. The source position is accurately known (to within 0.2 arcsec; Gaia EDR3), so target acquisition can be performed using ACQ/IMAGE (a S/N of 50 is obtained for a 10-s exposure; ECT ID COS.ta.1836992). We will use the 1105 A setting that provides continuous coverage between 1118-2251 A in segment A, while segment B is switched off. With this setup, a 1150-s exposure for COS yields a S/N~5 (ETC ID: COS.sp.1837003). We will be using different FP-POS positions to reduce fixed-pattern noise and to minimise long-term gain sag. # Comment on reduced gyro operations Since our program concerns simple orbit-long integrations with a single instrument/setup, the impact of reduced gyro operations on our HST science exposures is very minor. If needed we can increase the target acquisition time. We gladly accept advice on this. Our program does reply on obtaining (partly) simultaneous observations with VLT and XMM-Newton (as detailed below), hence our HST observations are time critical. This may be impacted by the reduced field of regard and hence requires careful consideration. # Notes with regards to scheduling: This programme is part of a simultaneous multi-wavelength campaign with the HST, XMM-Newton and VLT/XShooter observatories. The preferred window to coordinate with XMM-Newton and VLT/XShooter is between 17 and 22 July 2023. As mentioned before, the programme consists of 6 HST orbits, spread over 3 visits that consist of 2 orbits each. We aim to plan these visits in order to efficiently cover the entire orbital phase of our source (P~111 min) at least two times. We also aim to coordinate two of the HST visits with VLT, where the VLT observations consist of 6 hours spread equally over two consecutive days, and all of them within the XMM-Newton exposure of 120ks, to achieve our science goal of obtaining a time-resolved full SED of the system. We gladly accept advice on the optimal scheduling of our observations to achieve (partly) simulteneity with our VLT and XMM-Newton observations and to maximize the binary orbital coverage of our target. Given the orbital period of our system, this requires some careful consideration. na 6 false false false false false false false false SUPPORTED STAR LMXB NEUTRON STAR X-RAY BURSTER NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 COS/FUV Spectroscopic No No G140L 1105 COS/FUV Spectroscopic No No G140L 1105 COS/FUV Spectroscopic No No G140L 1105 The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. This is the first visit, it will be performed simultaneously with VLT/X-Shooter and XMM-Newton. The tighter constrains comes from the visibility of the former. 1689962717000 123.12163844720459 (Tic-Visit :proposal-id 17272 :visit-id "01" :proposal-version -1 :trans-version "20220630" :date "20-Dec-2022 22:59:39.0" :trans-errors '(:WARNINGS 5 :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 400224 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17272 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17272 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2772 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17272 :visit-id "01" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2773 :al-overhead-at-end 0 :internal-dur-at-end 350 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. This is the second visit, which will be simultaneous with XMM-Newton but not with VLT (due to visibility). 1690014048000 122.68298205920519 (Tic-Visit :proposal-id 17272 :visit-id "02" :proposal-version -1 :trans-version "20220630" :date "20-Dec-2022 23:01:51.0" :trans-errors '(:WARNINGS 5 :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 400224 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17272 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17272 :visit-id "02" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2772 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17272 :visit-id "02" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2773 :al-overhead-at-end 0 :internal-dur-at-end 350 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) true 2 0 C:\Users\Stefanie\AppData\Local\Temp\OPVisit11658729222662171335.xml This is the second visit, which will be simultaneous with XMM-Newton but not with VLT (due to visibility). (Tic-Visit :proposal-id 17272 :visit-id "04" :proposal-version -1 :trans-version "20230626" :date "20-Nov-2023 09:02:47.0" :trans-errors '(:WARNINGS 5 :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 400192 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17272 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17272 :visit-id "04" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2700 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3144 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17272 :visit-id "04" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2751 :al-overhead-at-end 0 :internal-dur-at-end 436 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3144 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. This is the third visit, it will be performed simultaneously with VLT/X-Shooter and XMM-Newton. The tighter constrains comes from the visibility of the former. 1690048269000 122.3914492605868 (Tic-Visit :proposal-id 17272 :visit-id "03" :proposal-version -1 :trans-version "20220630" :date "20-Dec-2022 23:02:18.0" :trans-errors '(:WARNINGS 5 :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 400224 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17272 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17272 :visit-id "03" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2772 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17272 :visit-id "03" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2773 :al-overhead-at-end 0 :internal-dur-at-end 350 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) true 2 0