P Goudfrooij 4/2/04 SMARTS 1.5m Service Observing Program 040418 --- EPHEMERIS INFORMATION --- For the night of: Sun, 2004 Apr 18 ---> Mon, 2004 Apr 19 Local midnight = 2004 Apr 19, 4 hr UT, or JD 2453114.667 Local Mean Sidereal time at midnight = 13 07 08.0 Sunset ( 2215 m horizon): 18 27 CST; Sunrise: 6 58 CST Evening twilight: 19 40 CST; LMST at evening twilight: 8 47 Morning twilight: 5 45 CST; LMST at morning twilight: 18 53 Moonset : 18 08 CST Moonrise: 6 56 CST Moon at civil midnight: illuminated fraction 0.002 0.4 days before new moon, RA and dec: 1 34 28, 8 38.5 The sun is down for 12.5 hr; 10.1 hr from eve->morn 18 deg twilight. .............................................................................. Civil date Setup Program(s) Apr 18 26/Ib STSI 04a-09 .............................................................................. Name Slit Filter Coll Grating Tilt & Comp,exp Ystart Ysize Yspec Blaze w.l. cov. (sec) Res (A) 26/Ib 221 clear 500? 26 16.50 He-Ar 30 214 280 TBD 3550 3800-5575 4.3 .............................................................................. Proposer's specific information follows the target list. .............................................................................. In afternoon or during dinner: - Install 26/Ib grating setup - Determine best collimator focus - obtain at least 10 Zero frames - obtain at least 5, preferably 10, flat-field frames (projector or dome). Make sure they are well exposed but not saturated at any location. Here is the target list. The NGC objects are all globular clusters. See below for details of the exposures for which there is no exposure time mentioned in the target list. Get well-exposed TWILIGHT SPECTRA at zenith at beginning of night. Aim for 3 spectra, each with between 5,000 and 30,000 counts per pixel. Pgm ID Pri Target RA (J2000) Dec mag Exp Cmp Remarks STSI 04a-09 1 HR 2701 07 07 44.5 -04 09 27 4.9 std star STSI 04a-09 1 HD 59040 07 28 19.8 +04 06 41 9.2 std star STSI 04a-09 1 HD 64606 07 54 34.2 -01 24 44 7.4 std star STSI 04a-09 1 HR 3369 08 33 00.1 +24 05 05 6.3 std star STSI 04a-09 1 HR 3418 08 38 45.4 +03 20 29 4.5 std star STSI 04a-09 1 HR 3427 08 40 06.4 +20 00 28 6.4 std star STSI 04a-09 1 HR 3428 08 40 22.1 +19 40 12 6.4 std star STSI 04a-09 1 NGC 2808 09 12 02.6 -64 51 47 6.2 Glob Cl STSI 04a-09 1 HD 84937 09 46 12.1 +13 59 17 8.3 std star STSI 04a-09 1+ LTT 4364 11 43 36.6 -64 50 24 11.5 3x240 1 Flux std star STSI 04a-09 2 NGC 3201 10 17 36.8 -46 24 40 6.8 Glob Cl STSI 04a-09 1 NGC 4590 12 39 28.0 -26 44 34 7.8 Glob Cl STSI 04a-09 2 NGC 4833 12 59 35.0 -70 52 29 6.9 Glob Cl STSI 04a-09 2 NGC 5286 13 46 26.5 -51 22 24 7.3 Glob Cl STSI 04a-09 2 NGC 5694 14 39 36.5 -26 32 18 10.2 Glob Cl STSI 04a-09 1 NGC 5824 15 03 58.5 -33 04 04 9.1 Glob Cl STSI 04a-09 1 NGC 5904 15 18 33.8 +02 04 58 5.7 Glob Cl STSI 04a-09 1 NGC 6121 16 23 35.5 -26 31 31 5.6 Glob Cl STSI 04a-09 1 NGC 6266 17 01 12.6 -30 06 44 6.4 Glob Cl STSI 04a-09 1 NGC 6440 17 48 52.6 -20 21 34 9.2 Glob Cl STSI 04a-09 1 NGC 6528 18 04 49.6 -30 03 21 9.6 Glob Cl STSI 04a-09 1 NGC 6540 18 06 08.6 -27 45 55 9.3 Glob Cl STSI 04a-09 1 NGC 6638 18 30 56.2 -25 29 47 9.0 Glob Cl STSI 04a-09 1 NGC 6652 18 35 45.7 -32 59 25 8.6 Glob Cl STSI 04a-09 1+ LTT 7379 18 36 26.2 -44 18 37 10.2 3x240 1 Flux std star STSI 04a-09 1 NGC 6723 18 59 33.2 -36 37 54 7.0 Glob Cl STSI 04a-09 1 NGC 6864 20 06 04.8 -21 55 17 8.5 Glob Cl STSI 04a-09 1 HD165195 18 04 40.1 +03 46 45 7.3 std star STSI 04a-09 1 HR 6770 18 07 18.4 +08 44 02 4.7 std star STSI 04a-09 1 HD172401 18 39 39.7 +08 43 58 7.0 std star STSI 04a-09 1 HD176301 18 56 34.6 +19 42 30 6.5 std star STSI 04a-09 1 HD180928 19 16 09.0 -15 37 30 6.1 std star STSI 04a-09 1 HR 7430 19 35 07.3 -10 33 38 5.1 std star Here are detailed notes on how to observe each target. Times mentioned assume the first observing night to be April 18th, 2004 (can be adjusted as appropriate). --------------------------- SECOND NIGHT: (040419) --------------------------- Start observing targets after taking twilight spectra, say 18:50. >>>>> DO NOT FOCUS TELESCOPE YET! THE TELESCOPE SHOULD BE OUT OF FOCUS FOR THE FIRST THREE STARS! HR 2701: Target is bright star. - After pointing, center star on slit. NO GUIDING! - Take 30 s HeAr lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 30 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~19:00 (sid time 08:12) HR 3369: Target is bright star. - After pointing, center star on slit. NO GUIDING! - Take 30 s HeAr lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 60 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~19:10 (sid time 08:22) HD 84937: Target is bright star. - After pointing, center star on slit. NO GUIDING! - Take 30 s HeAr lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 60 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~19:20 (sid time 08:32) - FOCUS TELESCOPE. A good target to do so would be HD 297225 (RA 10 16 19.5, DEC -46 03 10, EQ J2000.0), a ~10th mag star which is near the next target. Time should be ~19:45 (sid time 08:57) NGC 3201: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x600 s exposures. Time should be ~21:30 (sid time 10:42) LTT 4364: Target is Flux standard star. Take normal guided exposure of 3x240 s (plus comparison lamp exposure). Time should be ~21:45 (sid time 10:57) NGC 4833: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x500 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x500 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x500 s exposures. Time should be ~23:15 (sid time 12:27) NGC 5694: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x400 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x400 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x400 s exposures. Time should be ~00:30 (sid time 13:42) NGC 6121: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x420 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x420 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x420 s exposures. Time should be ~01:50 (sid time 15:02) NGC 6540: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x240 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x240 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x240 s exposures. Time should be ~02:40 (sid time 15:52) NGC 6652: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x330 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x330 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x330 s exposures. Time should be ~03:45 (sid time 16:57) NGC 6723: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x360 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x360 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x360 s exposures. Time should be ~04:55 (sid time 18:07) NGC 6864: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x210 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x210 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s He-Ar lamp comparison exposure - Take 3x210 s exposures. Time should be ~05:45 (sid time 18:57) LTT 7379: normal guided star exposure (+ comparison lamp exposure) Time should be ~05:55 (sid time 19:07) >>>>>>> OFFSET TELESCOPE FOCUS MANUALLY BY 100 MICRONS HD176301: Target is bright star. - After pointing, center star on slit. DO NOT GUIDE! - Take 30 s HeAr lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 40 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~06:05 (sid time 19:17) HD180928: Target is bright star. - After pointing, center star on slit. DO NOT GUIDE! - Take 30 s HeAr lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 40 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~06:15 (sid time 19:27) DONE FOR THE NIGHT. .............................................................................. Questions may be addressed to: Paul Goudfrooij goudfroo@stsci.edu