=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- PHASE II for Program 04A-0333 (PI Paul Goudfrooij). =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- SCHEDULED DATE: June 4th, 2005 Start with grating 26 setup 26/Ib, 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) 26/Ib 221 clear 500? 26 16.50 He-Ar 30 214 280 TBD 3550 3800-5575 4.3 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 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 Exp Cmp Remarks 04A-0333 1 HR 4287 10 59 48.1 -18 18 02 4.08 std star (K0III) 04A-0333 1 HD 94705 10 56 01.5 +06 11 07 5.81 std star (M5III) 04A-0333 1 HD 4365 11 15 51.9 +13 18 28 5.32 std star (K3III) 04A-0333 1 HD 106516 12 15 10.4 -10 17 54 6.11 std star (F5V) 04A-0333 1 HR 4995 13 14 11.3 -19 55 59 5.33 std star (G6V) 04A-0333 1+ Feige 56 12 06 47.3 +11 40 13 11.06 3x240 1 Flux std star 04A-0333 1 NGC 5946 15 35 28.5 -50 39 34 Glob Cl 04A-0333 2 NGC 6093 16 17 02.5 -22 58 30 Glob Cl 04A-0333 1 NGC 6342 17 21 10.2 -19 35 14 Glob Cl 04A-0333 1 NGC 6539 18 04 49.8 -07 35 09 Glob Cl 04A-0333 1 NGC 6712 18 53 04.3 -08 42 22 Glob Cl 04A-0333 1 NGC 6760 19 11 12.1 +01 01 50 Glob Cl (5) 04A-0333 1+ Feige 110 23 19 58.4 -05 09 56 11.83 3x240 1 Flux std star 04A-0333 1 HD 211038 22 14 38.2 -15 48 49 6.54 std star (G8V) 04A-0333 1 HR 8772 23 03 56.2 -04 47 44 6.68 std star (F8V) 04A-0333 1 HD 218329 23 07 00.2 +09 24 35 4.52 std star (M1III) Here are detailed notes on how to observe each target. Times mentioned assume the observing night to be June 4th, 2005. Start observing targets after taking twilight spectra, say 18:35. DO NOT FOCUS TELESCOPE YET! THE TELESCOPE SHOULD BE OUT OF FOCUS FOR THE FIRST FOUR STARS! HR 4287: 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 ~18:50 (sid time 11:00) HD 94705: 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 90 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~19:00 (sid time 11:10) HR 4365: 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 11:20) HD 106516: 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 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 11:30) HR 4995: 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 ~19:30 (sid time 11:40) - FOCUS TELESCOPE. A good target would be GSC667700519 (11 49 52.93, -29 48 58), a V=9.92 mag star. - After pointing, center star on slit. - Take a 300 sec exposure. - Take 30 s HeAr lamp comparison exposure Time should be ~19:40 (sid time 11:50) Feige 56: Target is Flux standard star. Take normal guided exposure of 3x240 s (plus comparison lamp exposure). Time should be ~20:00 (sid time 12:10) NGC 5946: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x600 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x600 s exposures. Time should be ~21:45 (sid time 13:55) NGC 6093: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x400 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x400 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x400 s exposures. Time should be ~23:00 (sid time 15:10) NGC 6342: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x420 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x420 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x420 s exposures. Time should be ~00:15 (sid time 16:25) NGC 6539: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x900 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x900 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x900 s exposures. Time should be ~02:45 (sid time 18:55) NGC 6712: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x300 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x300 s exposures. - Perform telescope offset 8" to the North and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x300 s exposures. Time should be ~03:45 (sid time 19:55) NGC 6760: Target is Globular Cluster (extended object). >>>>>>> NOTE: MORE STEPS THAN USUAL!!! <<<<<<< - After pointing, center target on slit (by eye) and find guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x520 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x520 s exposures. - Perform telescope offset 4" to the South and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x520 s exposures. - Perform telescope offset 12" to the North and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x520 s exposures. - Perform telescope offset 4" to the North and relock on guide star. - Take 30 s HeAr lamp comparison exposure - Take 3x520 s exposures. Time should be ~06:15 (sid time 22:25) Feige 110: normal guided star exposure of 3x240 s (+ comparison lamp exposure) Time should be ~06:35 (sid time 22:45) OFFSET TELESCOPE FOCUS MANUALLY BY 100 MICRONS HD 211038: 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 90 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~06:45 (sid time 22:55) HR 8772: 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 120 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~06:55 (sid time 23:05) HD 218329: 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 60 sec exposure, move star along the slit in "guide" mode in one direction (say West) until the exposure is finished. Time should be ~07:05 (sid time 23:15) DONE FOR THE NIGHT.