H. E. Bond 7/01/03 revised 7/02/03 SMARTS 1.5m Service Observing Program Night of Thursday 2003 July 3-4 Times are UT-4 Sunset: 17:55 Twilight: 6:14 Twilight: 19:20 Sunrise: 7:40 Duration of night: 10:56 Moon age +4 days. RA/Dec: 1024+16 Sets: 21:47 Sidereal time evening twilight: 13:24 midnight: 18:04 morning twilight: 00:18 .............................................................................. Civil date Setup Program(s) Jul 3 47/Ic & 47/II (one grating change during night) Observing plan: http://www.stsci.edu/~bond/s15m030703.plan STSI 03a-99/GoudfrooijGC STSI 03a-02/BondPNN STSI 03a-05/BondV838Mon SUNY 03a-10/WalterTTau .............................................................................. 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 47/II 83.0 CuSO4 620 47 27.39 He-Ar 45 200 280 TBD 3550 3878-4552 1.6 .............................................................................. ******************************* NOTE ******************************* Tonight we will start with a new grating 47 setup, called 47/Ic, for a special program for Paul Goudfrooij (STScI). Note that it uses a new slit width, a different filter, a new tilt, and a different comparison exposure time. You should probably check the focus to determine the best collimator setting (apparently Paul used 650 the last time he used the 1.5m himself). Make sure there are very few or no saturated comparison lines in the suggested 10-sec exposure time, and adjust comparison exposure time if necessary. In afternoon or during dinner: - Install 47/Ic grating setup - check 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 47/Ic target list. The NGC objects are all globular clusters. See below for details of the exposures. 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 Pri Target RA (J2000) Dec mag Exp Cmp Remarks STSI 03a-99 1+ LTT 6248 15 38 59.8 -28 35 34 11.8 3x240 1 std star STSI 03a-99 1 NGC 6284 17 04 28.8 -24 45 53 Glob Cl STSI 03a-99 1 NGC 6388 17 36 17.0 -44 44 06 Glob Cl STSI 03a-99 1 NGC 6441 17 50 12.9 -37 03 04 Glob Cl STSI 03a-99 1 NGC 6624 18 23 40.5 -30 21 40 Glob Cl STSI 03a-99 1 NGC 6626 18 24 32.9 -24 52 12 Glob Cl STSI 03a-99 2 NGC 6981 20 53 27.9 -12 32 13 Glob Cl STSI 03a-99 2 Bulge #1 18 05 21.3 -29 58 38 Bulge Field STSI 03a-99 1 Blank #1 19 19 09.0 +12 22 05 Blank Field STSI 03a-99 1 BD -7 5783 22 50 31.1 -06 54 50 7.8 1 std star STSI 03a-99 1+ Feige 110 23 19 58.3 -05 09 56 11.8 3x240 1 std star STSI 03a-99 1 HR 8924 23 29 32.1 -04 31 58 6.3 1 std star Here are detailed notes on how to observe each target: LTT 6248: normal guided star exposure Time will be ~19:40 (sid time 13:40) NGC 6284: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 4" to the South and relock on guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 8" to the North and relock on guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure NGC 6388: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 3x300 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 4" to the South and relock on guide star. - Take 3x300 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 8" to the North and relock on guide star. - Take 3x300 s exposures. - Take 10 s Ne lamp comparison exposure Time will be ~21:30 (sid time 15:30) NGC 6441: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 3x300 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 4" to the South and relock on guide star. - Take 3x300 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 8" to the North and relock on guide star. - Take 3x300 s exposures. - Take 10 s Ne lamp comparison exposure NGC 6624: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 4" to the South and relock on guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 8" to the North and relock on guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure Time will be ~23:30 (sid time 17:30) NGC 6626: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye) and find guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 4" to the South and relock on guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure - Perform telescope offset 8" to the North and relock on guide star. - Take 3x400 s exposures. - Take 10 s Ne lamp comparison exposure NGC 6981: Target is Globular Cluster (extended object). - After pointing, center target on slit (by eye). - Perform telescope offset 4" to the North and find guide star. - Take 3x600 s exposures - Take 10 s Ne lamp comparison exposure - Take 3x600 s exposures - Take 10 s Ne lamp comparison exposure Time will be ~01:00 (sid time 19:00) Bulge #1: Target is a star field towards the Galactic Bulge. Do not attempt to center on any particular star in the field. (In fact, there should NOT be a bright star in the slit). - take 3 x 1800 s exposures (guided), with a Ne lamp exposure in between the three subexposures. Blank #1: Target is a blank field used for sky subtraction. Do not attempt to center on any particular star in the field. (In fact, there should NOT be a bright star in the slit). - take 3 x 300 s exposures (guided), with 1 Ne lamp exposure after (or before) the three subexposures. Time will be ~03:00 (sid time 21:00) BD -7 5783, HR 8924: Targets are bright stars (used for metallicity calibration) - After pointing, center star on slit. NO GUIDE STAR NECESSARY. - After starting a 120 sec exposure, move star slowly along the slit (in "guide" mode). Star should be trailed over about 40 arcsec using guide mode. If "guide" mode motion is 1 arcsec/sec, then do the following: - Move star along slit in one direction (say West) for 40 sec - Move star along slit in the other direction (say East) for 40 sec - Move star along slit in the other direction again (West) until exposure is finished. - Take 10 s Ne lamp comparison exposure Feige 110: normal guided star exposure Time will be ~03:30 (sid time 21:30) ****************** GRATING TILT, FILTER, etc., CHANGE ****************** When the above list has been finished, or if the airmasses of the targets are becoming too high, change the grating tilt, filter, slit, comparison source, possibly the collimator focus, etc., to the 47/II setup. Then continue on to the following list with 47/II and observe as many as possible. Don't observe any target at airmass greater than 2.5. Pgm Pri Target RA (J2000) Dec mag Exp Cmp Remarks SUNY 03a-10 1 RU Lup 15 56 42.3 -37 49 15 3x600 1 SUNY 03a-10 1 V866 Sco 16 11 31.4 -18 38 24 3x600 1 SUNY 03a-10 2 Oph 118 16 31 15.8 -24 34 02 3x600 1 SUNY 03a-10 1 V1121 Oph 16 49 15.3 -14 22 09 3x600 1 SUNY 03a-10 2 V4046 Sgr 18 14 10.5 -32 47 34 3x600 1 STSI 03a-05 1+ V4745 Sgr 18 40 02.5 -33 26 55 ~ 9 3x300 1 nova STSI 03a-05 1+ V4743 Sgr 19 01 09.4 -22 00 06 11 3x400 1 nova SUNY 03a-10 1 S CrA 19 01 08.7 -36 57 20 3x600 1 STSI 03a-02 1 LSIV -12.111 20 01 49.8 -12 41 18 11.3 3x200 2 STSI 03a-02 1 NGC 6891 20 15 08.9 +12 42 14 12.4 3x600 2 STSI 03a-02 1 CRBB 1 20 19 28.7 -41 31 28 10.6 3x200 2 SUNY 03a-10 1 FF Aqr 22 00 35.2 -02 44 33 9.3 3x200 1 cal 1 Feige 110 23 19 58.4 -05 09 56 11.8 3x400 1 phot std SUNY 03a-10 1 CF Tuc 00 52 58.3 -74 39 07 7.4 3x100 1 STSI 03a-02 1 NGC 246 00 47 03.4 -11 52 19 11.8 3x250 2 STSI 03a-02 1 PHL 932 00 59 56.7 +15 44 13 12.1 3x350 2 STSI 03a-02 1 NGC 1360 03 33 14.6 -25 52 18 11.3 3x300 2 If any time remains before twilight, repeat stars from the SUNY 03a-10 program If you are not exhausted, get well-exposed TWILIGHT SPECTRA at zenith at end of night. Aim for 3 spectra, each with between 5,000 and 30,000 counts per pixel. Then take a set of ~5 projector flats with 47/II setup. .............................................................................. General Notes: Pri: Target priority. 1 = observe object if possible 2 = extra targets; observe only if no Priority 1 target is available 3 = backup targets; low priority RA & Dec: all coordinates are accurate to 1"; charts can be generated by operator as necessary using LEDAS or DSS. Charts for many objects were prepared at telescope in February and should be available. Cmp: 1 means take comparison spectrum only before target exposures; 2 means before and after .............................................................................. Questions may be addressed to: Howard Bond bond@stsci.edu (program STSI 03a-02) Paul Goudfrooij goudfroo@stsci.edu (program STSI 03a-99) Fred Walter fwalter@astro.sunysb.edu (SUNY 03a-10, SUNY 03a-11)