7298( 10) - 02/18/98 16:50 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 7298 Version: 10 Check-in Date: 18-Feb-1998 16:48:46 1.Proposal Title: A snapshot survey for UV bright Quasars at redshift below 3 ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle SNAP 7 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: JEAN-MICHEL DEHARVENG LAS CoI: Vincent Le Brun Laboratoire Astronomie Spatiale N CoI: Gerard Kriss The Johns Hopkins University N ------------------------------------------------------------------------------------ 5. Abstract We propose to take snapshot STIS spectra of 27 quasars with redshift in the range 1.7 -- 3. The goal is to find quasars bright enough in the ultraviolet for spectroscopic follow-up in the range 900 -- 1200 Angstrom . This follow-up would allow the measurement of the ionized helium absorption in the intergalactic medium in the redshift range 2.1 -- 2.9, and the possible detection of high-ionisation metal line systems. The proposed survey should extend the small number of suitable targets already known, allowing a test of the homogeneity of the ionized helium absorption. A potential brighter target with significant void in its Lyman forest would increase the possibility of distinguishing between the absorption from discrete clouds or a truly diffuse component of the IGM. ------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 2] Observations Description ------------------------ A flux of 10^-15 ergs cm^-2 AA^-1 s^-1, as required at least for a candidate target suitable for spectroscopy with FUSE, would give a signal to noise ratio of 5 at 1400 Angstrom and 5.5 at 1250 Angstrom in 6 minutes with the G140L STIS mode. In slitless mode no target acquisition is necessary. A snapshot exposure of 23 minutes (instrument overhead 8 min, exposure on target 6 min, guide star acquisition 9 min) would allow the selection of UV-bright quasars. Guide star acquisition is prefered to gyros control. The proposed snapshot would result in the selection of potential targets for detailed UV spectroscopy. This is of general interest and we, therefore, waive the proprietary rights for this proposal. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: DAT Blocking Factor: 10 Ship To: PI_Address Ship Via: Email: ------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 Q0123-527 GALAXY,QSO RA=01H 25M 6.276S +/- 1",DEC=- J2000 V = 16.7 52D 32' 27" +/- 1",PLATE-ID=025D 2 PKS0329-255 GALAXY,QUASAR RA=03H 31M 8.95S +/- 1",DEC=-25D J2000 V = 17.5 24' 44" +/- 1",PLATE-ID=027U 4 S5-0836+71 GALAXY,QUASAR RA=8H 41M 24.27S +/- 1",DEC=70D J2000 V = 16.5 53' 42" +/- 1",PLATE-ID=01L1 5 PKS0858-279 GALAXY,QUASAR RA=9H 0M 40.02S +/- 1",DEC=-28D J2000 V = 17.0 8' 24" +/- 1",PLATE-ID=04J8 6 J01.03 GALAXY,QSO RA=9H 39M 51.19S +/- 1",DEC=-18D J2000 V = 16.2 32' 16" +/- 1",PLATE-ID=04O4 7 CSO261 GALAXY,QSO RA=10H 19M 48.02S +/- 1",DEC=35D J2000 V = 17.0 41' 46" +/- 1",PLATE-ID=01R3 8 CSO100 GALAXY,QSO RA=11H 32M 45.25S +/- 1",DEC=31D J2000 V = 17.0 18' 50" +/- 1",PLATE-ID=019K 9 HE1224-0812 GALAXY,QSO RA=12H 26M 37.7S +/- 1",DEC=-8D J2000 V = 16.8 29' 30" +/- 1",PLATE-ID=015J 10 CSO139 GALAXY,QSO RA=12H 27M 27.49S +/- 1",DEC=28D J2000 V = 17.0 48' 47" +/- 1",PLATE-ID=00DJ 11 SBS1233+594 GALAXY,QSO RA=12H 35M 49.45S +/- 1",DEC=59D J2000 V = 16.5 10' 27" +/- 1",PLATE-ID=01R1 12 CSO952 GALAXY,QSO RA=13H 8M 53.09S +/- 1",DEC=36D J2000 V = 17 16' 58" +/- 1",PLATE-ID=01PR 13 SBS1340+605 GALAXY,QSO RA=13H 42M 11.92S +/- 1",DEC=60D J2000 V = 17.0 15' 25" +/- 1",PLATE-ID=01R0 14 CSO609 GALAXY,QSO RA=14H 8M 28.56S +/- 1",DEC=49D J2000 V = 17.0 2' 22" +/- 1",PLATE-ID=01PS 15 KUV1418+225 GALAXY,QSO RA=14H 21M 8.70S +/- 1",DEC=22D J2000 V = 16.6 41' 17" +/- 1",PLATE-ID=01TM 16 CSO1061 GALAXY,QSO RA=14H 44M 53.58S +/- 1",DEC=29D J2000 V = 16.2 19' 6" +/- 1",PLATE-ID=019R 17 PKS1448-232 GALAXY,QUASAR RA=14H 51M 2.49S +/- 1",DEC=-23D J2000 V = 16.9 29' 31" +/- 1",PLATE-ID=02C7 18 CSO1101 GALAXY,QSO RA=15H 32M 58.25S +/- 1",DEC=30D J2000 V = 17.0 59' 6" +/- 1",PLATE-ID=01MQ 19 CSO1108 GALAXY,QSO RA=15H 44M 49.07S +/- 1",DEC=30D J2000 V = 17.0 55' 22" +/- 1",PLATE-ID=01MQ 20 HS1626+6433 GALAXY,QSO RA=16H 26M 45.7S +/- 1",DEC=64D J2000 V = 15.8 26' 54" +/- 1",PLATE-ID=034O 21 S2-1848+28 GALAXY,QSO RA=18H 50M 27.59S +/- 1",DEC=28D J2000 V = 17.0 25' 13" +/- 1",PLATE-ID=02UB 22 Q2359-011 GALAXY,QSO RA=0H 1M 54.0S +/- 1",DEC=-0D J2000 V = 17.0 50' 4" +/- 1",PLATE-ID=012J 23 CSO199 GALAXY,QSO RA=8H 41M 18.08S +/- 1",DEC=35D J2000 V = 16.0 44' 39" +/- 1",PLATE-ID=02D5 24 S4-1128+38 GALAXY,QSO RA=11H 30M 53.27S +/- 1",DEC=38D J2000 V = 16.0 15' 19" +/- 1",PLATE-ID=019L 25 CSO151 GALAXY,QSO RA=12H 33M 55.51S +/- 1",DEC=29D J2000 V = 16.0 07' 49" +/- 1",PLATE-ID=01PM 26 UM627 GALAXY,QSO RA=14H 1M 10.80S +/- 1",DEC=-0D J2000 V = 16.0 13' 04" +/- 1",PLATE-ID=014F 7298( 10) - 02/18/98 16:50 - [ 4] Visit: 01 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 Q0123-527 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 5] Visit: 02 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 PKS0329-255 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 6] Visit: 04 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 S5-0836+71 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 7] Visit: 05 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 PKS0858-279 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 8] Visit: 06 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 J01.03 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 9] Visit: 07 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO261 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 10] Visit: 08 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO100 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 11] Visit: 09 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HE1224-0812 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 12] Visit: 0A Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO139 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 13] Visit: 0B Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 SBS1233+594 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 14] Visit: 0C Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO952 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 15] Visit: 0D Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 SBS1340+605 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 16] Visit: 0E Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO609 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 17] Visit: 0F Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 KUV1418+225 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 18] Visit: 0G Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO1061 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 19] Visit: 0H Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 PKS1448-232 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 20] Visit: 0I Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO1101 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 21] Visit: 0J Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO1108 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 22] Visit: 0K Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 S2-1848+28 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 23] Visit: 0L Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HS1626+6433 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 24] Visit: 0M Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 Q2359-011 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 25] Visit: 0N Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO199 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 26] Visit: 0O Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 S4-1128+38 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 27] Visit: 0P Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 CSO151 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 28] Visit: 0Q Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 UM627 STIS/F ACCUM 25MAMA G140L 1425 1 5 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 7298( 10) - 02/18/98 16:50 - [ 29] Summary Form for Proposal 7298 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category SNAP ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G140L ------------------------------------------------------------------------------------------------------------------------------------ Target Names Q0123-527 PKS0329-255 S5-0836+71 PKS0858-279 J01.03 CSO261 CSO100 HE1224-0812 CSO139 SBS1233+594 CSO952 SBS1340+605 CSO609 KUV1418+225 CSO1061 PKS1448-232 CSO1101 CSO1108 S2-1848+28 HS1626+6433 Q2359-011 CSO199 S4-1128+38 CSO151 UM627 ------------------------------------------------------------------------------------------------------------------------------------