FM Walter 4/15/07 rev 4/18 SMARTS 1.5m Service Observing Program 070425 --- EPHEMERIS INFORMATION --- For the night of: Wed, 2007 Apr 25 ---> Thu, 2007 Apr 26 Local midnight = 2007 Apr 26, 4 hr UT, or JD 2454216.667 Local Mean Sidereal time at midnight = 13 31 52.0 Sunset ( 2215 m horizon): 18 21 CST; Sunrise: 7 02 CST Evening twilight: 19 34 CST; LMST at evening twilight: 9 05 Morning twilight: 5 48 CST; LMST at morning twilight: 19 21 Moonset : 2 07 CST Moon at civil midnight: illuminated fraction 0.678 1.9 days since first quarter, RA and dec: 9 57 28, 14 27.6 The sun is down for 12.7 hr; 10.2 hr from eve->morn 18 deg twilight. .......................................................................... Civil date Setup Program(s) April 25 47/Ib NOAO 07a-0112 47/IIb NOAO 07a-0224 NOAO 07a-0256 SUNY 07a-09 YALE 07a-10 .............................................................................. Name Slit Filter Coll Grating Tilt & Comp,exp Ystart Ysize Yspec Blaze w.l. cov. (sec) Res (A) 47/Ib 110.5 GG495 595 47 22.64 Neon 20 200 280 164 7100 5652-6972 3.1 47/IIb 83.0 CuSO4 620 47 28.22 He-Ar 45 200 280 3550 4058-4732 1.6 .............................................................................. In afternoon or during dinner: - Install 47/Ib grating setup - check focus if necessary - obtain at least 25 Zero frames - obtain at least 10, preferably 25, flat-field frames (projector or dome) Get well-exposed TWILIGHT SPECTRA at zenith at beginning of night. Aim for three spectra, each with between 5,000 and 30,000 counts per pixel. ---------------------------------------------------------------------------- Program Pri Target RA (J2000) Dec mag Exp Cmp T CDT Rem cal 1 LTT 4364 11 45 37.70 -64 50 25.1 11.5 3x 100 1 14 18 56 YALE 07a-10 1 NGC 3766-25 11 35 22.07 -61 32 10.9 10.7 1x 900 1 21 19 10 YALE 07a-10 1 NGC 3766-31 11 36 12.35 -61 32 44.9 10.1 1x 900 0 17 19 31 YALE 07a-10 2 NGC 3766-47 11 36 31.56 -61 34 25.7 8.5 1x 180 0 5 19 48 YALE 07a-10 1 NGC 3766-72 11 36 01.98 -61 35 38.1 12.6 1x1800 0 32 19 53 YALE 07a-10 1 NGC 3766-73 11 36 09.56 -61 35 38.1 9.2 1x 300 0 7 20 25 YALE 07a-10 2 NGC 3766-83 11 36 11.86 -61 35 50.2 8.3 1x 180 0 5 20 32 YALE 07a-10 1 NGC 3766-98 11 36 21.85 -61 36 29.8 10.6 1x 900 1 19 20 37 YALE 07a-10 1 NGC 3766-119 11 36 01.10 -61 37 18.4 10.1 1x 900 0 18 20 56 YALE 07a-10 1 NGC 3766-130 11 36 14.05 -61 37 35.6 9.9 1x 600 0 13 21 14 YALE 07a-10 2 NGC 3766-133 11 36 10.16 -61 37 39.8 9.2 1x 300 0 7 21 27 YALE 07a-10 1 NGC 3766-139 11 36 41.89 -61 37 53.7 11.1 1x1500 1 28 21 34 end 47/Ib 22 02 ****************** GRATING TILT, FILTER, etc., CHANGE ****************** When the above list has been finished, change the grating tilt, filter, slit, comparison source, possibly the collimator focus, etc., to the 47/IIb setup. cal 1 LTT 4364 11 45 37.70 -64 50 25.1 11.5 3x 180 1 18 22 27 SUNY 07a-09 1 HD 109962 12 39 07.89 -45 33 44 9.7 3x 300 2 25 22 45 NOAO 7a-256 1 HD 116852 13 30 23.5 -78 51 20.5 8.5 3x 600 2 40 23 9 NOAO 7a-256 1 HD 124979 14 18 11.9 -51 30 13.8 8.6 3x 600 2 40 23 49 NOAO 7a-256 1 HD 148546 16 30 23.3 -37 58 21.1 7.7 3x 600 2 40 0 29 NOAO 7a-256 1 HD 156212 17 17 27.5 -27 46 00.8 8.0 3x 600 2 40 1 9 N0AO 7a-112 2 Pis24-13 17 24 45.69 -34 09 39.3 14.3 5x1800 2 162 1 49 NOAO 7a-256 1 HD 157857 17 26 17.3 -10 59 34.7 7.8 3x 600 2 40 4 31 NOAO 7a-224 2 N 6530 W161 18 04 20.8 -24 14 05.2 13.7 7x 600 1 83 5 11 end 47/IIb 6 34 If there is any time left before dawn, or you get ahead and have to wait for targets to rise, or if some targets are too faint to acquire, please select from among the following 47/IIb targets: SUNY 07a-11 3 V1280 Sco 16 57 41.24 -32 20 36.5 9.9 3x 600 1 39 NOAO 7a-224 2 N 6530 W13 18 04 00.2 -24 15 02.6 13.4 5x 480 1 51 NOAO 7a-224 3 N 6611 W374 18 18 53.3 -13 46 06.7 13.4 5x 480 1 51 SUNY 06b-10 3 S CrA 19 01 08.7 -36 57 19.8 11 3x 600 1 39 standard 3 HD112758 12 59 01.6 -09 50 03 7.6 3x 60 1 12 standard 3 HD146624 16 18 17.9 -28 36 50.5 4.8 3x 20 1 10 standard 3 HD149757 16 37 09.5 -10 34 01.5 2.6 3x 2 1 9 standard 3 HD153210 16 57 40.1 +09 22 30 3.2 3x 10 1 9 Just before sunrise, get well-exposed TWILIGHT SPECTRA at zenith. Aim for 3-5 spectra, each with between 5,000 and 30,000 counts per pixel. -------------------------------------------------------------------- Remarks: M: moon within 10 degrees. Skip if the star is not seen in the acquisition TV B: very bright star: best observed through clouds. C: cataclysmic variable. May be fainter than in finding chart. Skip if not visible. E: may be below the east limit if you get to it early. F: faint target may be hard to see with moon up. N: Nova. Will be fainter than on finding chart. R: radial velocity standard. S4: set slit width to 4.0 arcsec. S10: set slit width to 10.0 arcsec. Please reset at the end of the observation. TC: time critical. maintain spacing between the 3 images W: target reaches 2 air masses at end of exposure. Do not start late; do the calibration lamp at the end. X: If running 10 minutes or more ahead at this point, increase exposure lengths to 600 seconds. Y: 5 arcsec SE of brighter star. Skip if not clearly resolved. -------------------------------------------------------------------- General Notes: Astronomical ephemerides are from SKYCAL,by John Thorstensen Pri: Target priority. + = absolute highest priority 1 = observe object if possible 2 = extra targets; skip if running behind and Priority 1 targets remain unobserved. 3 = backup/filler targets; low priority Cmp: 1 means take comparison spectrum only before target exposures; 2 means before and after The T column lists the approximate time in minutes for this line. This includes 5 minutes acquisition plus 1 minute for the comparison. The CDT column is the approximate start time assumed for scheduling purposes. If you fall too far behind, you may need to drop some priority 2 or 3 targets, but otherwise don't pay too much attention to it. As I get experience with scheduling, I will try to make it more accurate. For now I am allotting the nominal overheads, plus 25 minutes for a change in the grating tilt/filter. .............................................................................. Notes about finding charts: RA & Dec: all coordinates are accurate to 1"; charts can be generated by operator as necessary using LEDAS or DSS. Most charts are available via the link from the main 1.5m scheduling page. Charts for most objects should be available at the telescope. .............................................................................. Questions may be addressed to: Howard Bond bond@stsci.edu (STSI programs) Fred Walter fwalter@astro.sunysb.edu (SUNY programs)