=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- PHASE II for Program STSI 04A-0333 (PI Paul Goudfrooij). =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- SCHEDULED DATE: July 29th, 2005 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 04A-0333 1 HR 5690 15 18 26.1 -00 27 40 5.88 std star 04A-0333 1 HR 5707 15 21 07.6 -05 49 29 5.54 std star 04A-0333 1 HR 6144 16 30 30.0 -07 30 52 6.47 std star 04A-0333 1 HR 6366 17 08 47.5 -30 24 13 5.92 std star 04A-0333 1 BD-033968 16 34 42.4 -04 13 45 9.63 std star 04A-0333 1+ EG274 16 23 33.8 -39 13 48 11.03 Flux std star 04A-0333 1 NGC 6121 16 23 35.4 -26 31 32 Glob Cl 04A-0333 1 NGC 6397 17 40 41.3 -53 40 25 Glob Cl 04A-0333 1 NGC 6541 18 08 02.2 -43 42 20 Glob Cl 04A-0333 1 NGC 6864 20 06 04.8 -21 55 16 Glob Cl 04A-0333 1 NGC 330 00 56 18.7 -72 27 50 Glob Cl 04A-0333 1 NGC 458 01 14 53.8 -71 32 57 Glob Cl 04A-0333 1+ EG21 03 10 31.0 -68 36 02 11.38 Flux std star 04A-0333 1 HR 0296 01 03 02.5 -04 50 12 5.40 std star 04A-0333 1 HR 1784 05 23 56.8 -07 48 29 4.14 std star 04A-0333 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 July 29th, 2005. Start observing targets after taking twilight spectra, say 18:40. 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 ~14:35) 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 ~14:45) 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 ~14:55) 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 ~15:05) - 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 ~15:25) EG274: Target is Flux standard star. Take normal guided exposure of 3x240 s (plus comparison lamp exposure). Time should be ~20:00 (sid time ~15:45) NGC 6121: 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 3x1000 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x1000 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x1000 s exposures. Time should be ~22:40 (sid time ~18:25) 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 3x540 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x540 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x540 s exposures. Time should be ~00:10 (sid time ~20:00) 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 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 ~01:15 (sid time ~21:05) NGC 6864: 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 3x720 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x720 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 10 s Neon lamp comparison exposure - Take 3x720 s exposures. Time should be ~03:15 (sid time ~23:05) NGC 330: 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 ~04:20 (sid time ~00:10) NGC 458: 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 ~06:00 (sid time ~01:50) EG21: normal guided star exposure of 3x240 s (+ comparison lamp exposure) Time should be ~06:20 (sid time ~02:10) OFFSET TELESCOPE FOCUS MANUALLY BY 100 MICRONS HR 0296: 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 90 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 ~02:20) 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 ~06:40 (sid time ~02:30) 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 ~06:50 (sid time ~02:40) DONE FOR THE NIGHT.