15312( 5) - 14-May-2018 19:42:07 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15312 Version: 5 Check-in Time: 14-May-2018 19:42:07 STScI Edit Number: 1 Title Ultraviolet Spectroscopic Monitoring of a Tidal Disruption Eventd ------------------------------------------------------------------------------------ Type Cycle GO 25 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Chris S. Kochanek The Ohio State University Y CoI: Dr. Krzysztof Z. Stanek The Ohio State University N CoI: Mr. Jonathan Brown The Ohio State University N CoI: Dr. Smita Mathur The Ohio State University N CoI: Prof. Benjamin John Shappee University of Hawaii N ------------------------------------------------------------------------------------ Abstract Tidal disruption events (TDE), where supermassive black holes destroy stars to produce accretion flares, are of great current observational and theoretical interest. Here we propose a seven epoch STIS UV spectroscopic "movie'' of a UV bright TDE spread over the first ~90 days after a rapid TOO trigger. The roughly 15 day cadence is comparable to the expected and observed time scales for kinematic changes in the optical and UV emission and absorption lines. We will measure the evolution of UV absorption and emission lines from elements (e.g., C, N, Si) and ionization states/potentials not seen in optical spectra of TDEs, which should help to illuminate their dynamical evolution. In some cases, the debris from the stellar cores should have significantly enhanced [N/C] abundances due to the CNO cycle, so UV spectra can provide a means of differentiating debris from the core and the envelope of the disrupted star. Optically-selected TDEs are energetically dominated by their UV emission, making it the wavelength range most needed to understand these fascinating transients. ------------------------------------------------------------------------------------ Observations Description ------------------------ The goal is to obtain a sequence of 7 STIS FUV-MAMA/G140L and NUV-MAMA/G230L UV spectra of a tidal disruption event, obtaining roughly one spectrum every 15 days for 90 days. Orbits are set for 1, 2, 2, 3, 4, 5 and 5 orbits for the first through seventh observations. The exact final sequence may need adjusting to match the evolution of the target. First observation is a disruptive, rapid (but not ultra-rapid) 2-5 day TOO, followed by observations chained by 13-17 days. The second observation counts as a disruptive TOO, and the remainder are non-disruptive. 15312( 5) - 14-May-2018 19:42:07 - [ 2] We have set the acquisiton image for a point source with the standard F28X50LP filter and a 10 second exposure time -- this is appropriate for the early phases where any ASAS-SN bright ASAS-SN TDE should have V~16-17 mag -- should yield a SNR=79 according to the STIS acquistion ETC -- this should still be OK if the TDE is as bright as V~15, and hold for at least the first 1/2 of the visits. The exposure times may need to be adjusted for the later 1/2 of the visits and may need a switch to a diffuse source as the TDE fades relative to its host. We have used an along slit dither to clean up hot pixels, with a step of 16 pixels to be larger than the recommended 0.35 arcsec -- we expect features fairly broad in velocity so we have not used dithers perpendicular to the slit. A minimum of two exposures are then taken at each dither position. The source should be well above sky, so the 0.2x50 slit should be fine for both the FUV and NUV observations. ------------------------------------------------------------------------------------ 15312( 5) - 14-May-2018 19:42:07 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 2 ASASSN18JD GALAXY, ACCRETION DISK, RA=22H43M42.8760S, J2000 V = 16 QUASAR DEC=-16D59'8.51" Reference Frame: ICRS Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 15312( 5) - 14-May-2018 19:42:07 - [ 4] TARGET LIST Generic Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Selection Criteria | Flux data No | Name | Description | | ------------------------------------------------------------------------------------------------------------------------------------ 1 UV-BRIGHT-TD SWFIT UV FLUX AT 2000A ABOVE V = 16 E 10^(-14.5) ERGS/CM^2/A/SEC Comments: Target would also have to meet STIS/MAMA safety criteria ------------------------------------------------------------------------------------------------------------------------------------ 15312( 5) - 14-May-2018 19:42:07 - [ 5] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type STIS-ALONG-SLIT Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.3829 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 90.0 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type STIS-ALONG-SLIT Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.3829 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 90.0 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 Primary_Pattern Secondary_Pattern Pattern_Type STIS-ALONG-SLIT Pattern_Purpose DITHER Number_Of_Points 5 Point_Spacing 0.3829 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 90.0 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 15312( 5) - 14-May-2018 19:42:07 - [ 6] Visit: 01 Visit Requirements: SCHED 100%; BETWEEN 01-MAY-2018:00:00:00 AND 20-MAY-2018:00:00:00; ON HOLD ; TOO RESPONSE TIME 2.0D On Hold Comments: requires discovery of a sufficiently bright ASAS-SN Tidal Disruption Event Additional Comments: Disruptive ToO trigger of 2-5 days turnaround. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ASASSN18JD STIS/CCD ACQ 50CCD MIRROR 1 10 S (10 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 2 100 S PATTERN 1 2 -MAMA see below (676 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 2 100 S PATTERN 1 3 -MAMA see below (676 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 1 STIS/CCD ACQ 50CCD MIRROR none none none none 1 N/A ASASSN18JD 2 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 1 none 1 169.0 S -MAMA ASASSN18JD 2 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 2 none 1 169.0 S -MAMA ASASSN18JD 2 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 1 none 1 169.0 S -MAMA ASASSN18JD 2 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 2 none 1 169.0 S -MAMA ASASSN18JD 3 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 1 none 1 169.0 S -MAMA ASASSN18JD 3 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 2 none 1 169.0 S -MAMA ASASSN18JD 3 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 1 none 1 169.0 S -MAMA ASASSN18JD 3 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 2 none 1 169.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 7] Visit: 02 Visit Requirements: SCHED 100%; AFTER 01 BY 13 D TO 17 D; ON HOLD On Hold Comments: requires discovery of a sufficiently bright ASAS-SN Tidal Disruption Event Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ASASSN18JD STIS/CCD ACQ 50CCD MIRROR 1 10 S (10 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 2 300 S PATTERN 2 2 -MAMA see below (1854 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 2 300 S PATTERN 2 3 -MAMA see below (2460 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 1 STIS/CCD ACQ 50CCD MIRROR none none none none 1 N/A ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 1 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 2 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 1 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 2 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 1 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 2 none 1 309.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 1 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 2 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 1 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 2 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 1 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 2 none 2 410.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 8] Visit: 03 Visit Requirements: SCHED 100%; AFTER 02 BY 13 D TO 30 D; ON HOLD On Hold Comments: requires discovery of a sufficiently bright ASAS-SN Tidal Disruption Event Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ASASSN18JD STIS/CCD ACQ 50CCD MIRROR 1 10 S (10 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 2 300 S PATTERN 2 2 -MAMA see below (1854 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 2 300 S PATTERN 2 3 -MAMA see below (2460 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 1 STIS/CCD ACQ 50CCD MIRROR none none none none 1 N/A ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 1 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 2 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 1 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 2 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 1 none 1 309.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 2 none 1 309.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 1 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 2 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 1 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 2 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 1 none 2 410.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 2 none 2 410.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 9] Visit: 04 Visit Requirements: SCHED 100%; AFTER 03 BY 13 D TO 17 D; ON HOLD On Hold Comments: requires discovery of a sufficiently bright ASAS-SN Tidal Disruption Event Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ASASSN18JD STIS/CCD ACQ 50CCD MIRROR 1 10 S (10 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 2 500 S PATTERN 2 2 -MAMA see below (2920 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 2 500 S PATTERN 2 3 -MAMA see below (3420 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 1 STIS/CCD ACQ 50CCD MIRROR none none none none 1 N/A ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 1 none 1 481.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 2 none 1 481.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 1 none 1 481.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 2 none 1 481.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 1 none 2 498.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 2 none 2 498.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 1 none 2 498.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 2 none 2 498.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 1 none 3 606.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 2 none 3 606.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 1 none 3 606.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 2 none 3 606.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 10] Visit: 05 Visit Requirements: SCHED 100%; AFTER 04 BY 13 D TO 17 D; ON HOLD On Hold Comments: requires discovery of a sufficiently bright ASAS-SN Tidal Disruption Event Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ASASSN18JD STIS/CCD ACQ 50CCD MIRROR 1 10 S (10 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 2 400 S PATTERN 3 2 -MAMA see below (4275 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 2 500 S PATTERN 3 3 -MAMA see below (5080 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 1 STIS/CCD ACQ 50CCD MIRROR none none none none 1 N/A ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 2 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 2 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 2 none 2 480.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 4 none 1 none 2 480.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 4 none 2 none 2 480.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 5 none 1 none 2 480.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 5 none 2 none 2 480.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 1 none 3 497.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 2 none 3 497.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 11] 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 1 none 3 497.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 2 none 3 497.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 1 none 3 497.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 2 none 4 519.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 4 none 1 none 4 519.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 4 none 2 none 4 519.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 5 none 1 none 4 519.0 S -MAMA ASASSN18JD 3 STIS/FUV ACCUM 52X0.2 G140L 1425 5 none 2 none 4 519.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 12] Visit: 06 Visit Requirements: SCHED 100%; AFTER 05 BY 13 D TO 17 D; ON HOLD On Hold Comments: requires discovery of a sufficiently bright ASAS-SN Tidal Disruption Event Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ASASSN18JD STIS/CCD ACQ 50CCD MIRROR 1 10 S (10 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 2 400 S PATTERN 3 2 -MAMA see below (3835 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 1 400 S PATTERN 1 3 -MAMA see below (762 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 2 500 S PATTERN 3 4 -MAMA see below (5360 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 1 500 S PATTERN 1 5 -MAMA see below (1131 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 1 STIS/CCD ACQ 50CCD MIRROR none none none none 1 N/A ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 2 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 2 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 2 none 2 392.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 4 none 1 none 2 392.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 4 none 2 none 2 392.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 13] 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 5 none 1 none 2 392.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 5 none 2 none 2 392.0 S -MAMA ASASSN18JD 3 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none none none 2 392.0 S -MAMA ASASSN18JD 3 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none none none 3 370.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 1 none 3 571.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 2 none 3 571.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 1 none 3 571.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 2 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 1 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 2 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 4 none 1 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 4 none 2 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 5 none 1 none 5 646.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 5 none 2 none 5 646.0 S -MAMA ASASSN18JD 5 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none none none 5 646.0 S -MAMA ASASSN18JD 5 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none none none 5 485.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 14] Visit: 07 Visit Requirements: SCHED 100%; AFTER 06 BY 13 D TO 17 D; ON HOLD On Hold Comments: requires discovery of a sufficiently bright ASAS-SN Tidal Disruption Event Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ASASSN18JD STIS/CCD ACQ 50CCD MIRROR 1 10 S (10 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 2 400 S PATTERN 3 2 -MAMA see below (3835 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ASASSN18JD STIS/NUV ACCUM 52X0.2 G230L 2376 1 400 S PATTERN 1 3 -MAMA see below (762 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 2 500 S PATTERN 3 4 -MAMA see below (5360 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 ASASSN18JD STIS/FUV ACCUM 52X0.2 G140L 1425 1 500 S PATTERN 1 5 -MAMA see below (1131 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 1 STIS/CCD ACQ 50CCD MIRROR none none none none 1 N/A ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none 2 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none 2 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 1 none 1 375.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 3 none 2 none 2 392.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 4 none 1 none 2 392.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 4 none 2 none 2 392.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 15] 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 | ------------------------------------------------------------------------------------------------------------------------------------ ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 5 none 1 none 2 392.0 S -MAMA ASASSN18JD 2 STIS/NUV ACCUM 52X0.2 G230L 2376 5 none 2 none 2 392.0 S -MAMA ASASSN18JD 3 STIS/NUV ACCUM 52X0.2 G230L 2376 1 none none none 2 392.0 S -MAMA ASASSN18JD 3 STIS/NUV ACCUM 52X0.2 G230L 2376 2 none none none 3 370.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 1 none 3 571.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none 2 none 3 571.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 1 none 3 571.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none 2 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 1 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 3 none 2 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 4 none 1 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 4 none 2 none 4 471.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 5 none 1 none 5 646.0 S -MAMA ASASSN18JD 4 STIS/FUV ACCUM 52X0.2 G140L 1425 5 none 2 none 5 646.0 S -MAMA ASASSN18JD 5 STIS/FUV ACCUM 52X0.2 G140L 1425 1 none none none 5 646.0 S -MAMA ASASSN18JD 5 STIS/FUV ACCUM 52X0.2 G140L 1425 2 none none none 5 485.0 S -MAMA 15312( 5) - 14-May-2018 19:42:07 - [ 16] Summary Form for Proposal 15312 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 50CCD, 52X0.2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA, STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 01 BY 13 D TO 17 D, AFTER 02 BY 13 D TO 30 D, AFTER 03 BY 13 D TO 17 D, AFTER 04 BY 13 D TO 17 D, AFTER 05 BY 13 D TO 17 D, AFTER 06 BY 13 D TO 17 D, BETWEEN 01-MAY-2018:00:00:00 AND 20-MAY-2018:00:00:00, ON HOLD , PATTERN 1 2, PATTERN 1 3, PATTERN 1 5, PATTERN 2 2, PATTERN 2 3, PATTERN 3 2, PATTERN 3 3, PATTERN 3 4, SCHED 100%, TOO RESPONSE TIME 2.0D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G140L, G230L, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names ASASSN18JD ------------------------------------------------------------------------------------------------------------------------------------