PHASE II for Program STSI 04b-07 (PI Paul Goudfrooij). =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= SCHEDULED DATE: August 18th, 2004 Start with grating 47 setup 47/Ic, see below. Note the non-nominal slit width. Please make sure the collimator focus setting is correct. Name Slit Filter Coll Grating Tilt & Comp,exp Ystart Ysize Yspec Blaze w.l. cov. Res (A) 47/Ic 155 OG570 650? 47 27.58 Neon 10 200 280 164 7100 7815-9150 3.1 In afternoon or during dinner: - Install 47/Ic 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 targets are all globular clusters. 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 Cmp Remarks STSI 04b-07 1 HR 5690 15 18 26.1 -00 27 40 5.88 std star STSI 04b-07 1 HR 5707 15 21 07.6 -05 49 29 5.54 std star STSI 04b-07 1 HR 6144 16 30 30.0 -07 30 52 6.47 std star STSI 04b-07 1 HR 6366 17 08 47.5 -30 24 13 5.92 std star STSI 04b-07 1 BD-033968 16 34 42.4 -04 13 45 9.63 std star STSI 04b-07 1+ EG274 16 23 33.8 -39 13 48 11.03 Flux std star STSI 04b-07 1 NGC 6093 16 17 02.5 -22 58 30 Glob Cl STSI 04b-07 1 NGC 6266 17 01 12.8 -30 06 49 Glob Cl STSI 04b-07 1 NGC 6397 17 40 41.3 -53 40 25 Glob Cl STSI 04b-07 1 NGC 6541 18 08 02.2 -43 42 20 Glob Cl STSI 04b-07 1 NGC 104 00 24 05.2 -72 04 51 Glob Cl STSI 04b-07 1 NGC 362 01 03 14.3 -70 50 54 Glob Cl STSI 04b-07 1 NGC 1851 05 14 06.3 -40 02 50 Glob Cl STSI 04b-07 1+ EG21 03 10 31.0 -68 36 02 11.38 Flux std star STSI 04b-07 1 HR 2154 06 06 38.7 -04 11 38 5.35 std star STSI 04b-07 1 HR 1784 05 23 56.8 -07 48 29 4.14 std star STSI 04b-07 1 HR 1545 04 49 42.2 -13 46 11 6.26 std star Here are detailed notes on how to observe each target. Times mentioned assume the observing night to be August 18th, 2004. Start observing targets after taking twilight spectra, say 18:30. DO NOT FOCUS TELESCOPE YET! THE TELESCOPE SHOULD BE OUT OF FOCUS FOR THE FIRST FOUR STARS! HR 5690: Target is bright star. - After pointing, center star on slit. NO GUIDING! - Take 10 s Neon lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 90 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~18:50 (sid time 15:55) HR 5707: Target is bright star. - After pointing, center star on slit. NO GUIDING! - Take 10 s Neon 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 ~19:00 (sid time 16:05) HR 6144: Target is bright star. - After pointing, center star on slit. NO GUIDING! - Take 10 s Neon lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 120 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 16:15) HR 6366: Target is bright star. - After pointing, center star on slit. NO GUIDING! - Take 10 s Neon lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 90 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 16:25) - FOCUS TELESCOPE. A good target to do so would be BD-033968, a V=9.63 mag star. - After pointing, center star on slit. - Take a 300 sec exposure. - Take 10 s Neon lamp comparison exposure Time should be ~19:40 (sid time 16:45) EG274: Target is Flux standard star. Take normal guided exposure of 3x240 s (plus comparison lamp exposure). Time should be ~20:00 (sid time 17:05) NGC 6093: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. Time should be ~21:40 (sid time 18:45) NGC 6266: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. Time should be ~23:20 (sid time 20:25) NGC 6397: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 10 s Neon lamp comparison exposure - Take 3x800 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x800 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x800 s exposures. Time should be ~01:30 (sid time 22:35) NGC 6541: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x600 s exposures. Time should be ~03:10 (sid time 00:15) NGC 104: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 10 s Neon lamp comparison exposure - Take 3x180 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x180 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x180 s exposures. Time should be ~03:45 (sid time 00:50) NGC 362: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 10 s Neon lamp comparison exposure - Take 3x300 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x300 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x300 s exposures. Time should be ~04:40 (sid time 01:45) NGC 1851: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 10 s Neon lamp comparison exposure - Take 3x360 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x360 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x360 s exposures. Time should be ~05:50 (sid time 02:55) EG21: normal guided star exposure of 3x240 s (+ comparison lamp exposure) Time should be ~06:10 (sid time 03:15) OFFSET TELESCOPE FOCUS MANUALLY BY 100 MICRONS HR 2154: Target is bright star. - After pointing, center star on slit. DO NOT GUIDE! - Take 10 s Neon 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 ~06:20 (sid time 03:25) HR 1784: Target is bright star. - After pointing, center star on slit. DO NOT GUIDE! - Take 10 s Neon 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 ~06:30 (sid time 03:35) HR 1545: Target is bright star. - After pointing, center star on slit. DO NOT GUIDE! - Take 10 s Neon lamp comparison exposure - Set "guide" mode motion at 1 arcsec/sec - After starting a 120 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~06:40 (sid time 03:45) DONE FOR THE NIGHT. Questions? contact: Thomas H. Puzia tpuzia@stsci.edu