FM Walter 4/5/04 rev 4/15 SMARTS 1.5m Service Observing Program 040415 --- EPHEMERIS INFORMATION --- For the night of: Thu, 2004 Apr 15 ---> Fri, 2004 Apr 16 Local midnight = 2004 Apr 16, 4 hr UT, or JD 2453111.667 Local Mean Sidereal time at midnight = 12 55 18.4 Sunset ( 2215 m horizon): 18 30 CST; Sunrise: 6 56 CST Evening twilight: 19 43 CST; LMST at evening twilight: 8 38 Morning twilight: 5 43 CST; LMST at morning twilight: 18 40 Moonset : 16 42 CST Moonrise: 4 05 CST Moon at civil midnight: illuminated fraction 0.113 3.4 days before new moon, RA and dec: 23 19 41, -8 33.7 The sun is down for 12.4 hr; 10.0 hr from eve->morn 18 deg twilight. .............................................................................. Civil date Setup Program(s) Apr 15 26/I STSI 04a-03 STSI 04a-11 SUNY 04a-02 SUNY 04a-10 SUNY 04a-11 YALE 04a-07 YALE 04a-11 .............................................................................. Name Slit Filter Coll Grating Tilt & Comp,exp Ystart Ysize Yspec Blaze w.l. cov. (sec) Res (A) 26/I 110.5 clear 565 26 15.93 He-Ar 30 214 280 " 3550 3532-5300 4.3 .............................................................................. General notes: 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. For now I am allotting the nominal overheads, plus 30 minutes for a change in the grating tilt/filter. .............................................................................. In afternoon or during dinner: - Install 26/I grating setup - check focus if necessary - obtain at least 25 Zero frames - obtain at least 5, 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 CST Rem SUNY 04a-02 1 NY Ori 05 35 37 -05 12 24 15.0 3x600 1 39 19 4 3 STSI 04a-03 1 V838 Mon 07 04 04.8 -03 50 50 15.6 3x1000 2 60 19 43 STSI 04a-03 1 mu CMa 06 56 06.6 -14 02 36 5.0 3x 8 2 10 20 43 R SUNY 03b-16 1 HD 93308 10 45 03.6 -59 41 04 6.2 3x 20 1 10 20 53 cal 1 LTT 4364 11 45 37.7 -64 50 25.1 11.5 3x240 1 21 21 3 YALE 04a-07 1 CTS 300 11 28 18.6 -13 19 28 16.4 3x1200 1 69 21 24 YALE 04a-07 2 CTS 667 11 39 10.7 -13 50 44 16.1 3x1200 1 69 22 33 YALE 04a-07 1 CTS 306 11 59 41.0 -19 59 24 16.2 3x1200 1 69 23 42 YALE 04a-07 2 CTS 321 13 17 44.8 -14 16 57 16.7 3x1200 1 69 0 51 STSI 04a-03 + N Oph 2004 17 38 45.5 -23 28 18 11: 3x180 1 18 2 0 X YALE 04a-07 1 CTS 536 14 01 49.2 -24 55 30 16.5 3x1200 1 69 2 18 YALE 04a-11 1 RR_426 15 37 01.90 -01 13 07.6 15.6 3x600 2 40 3 27 SUNY 04a-11 + V5114 Sgr 18 19 32.3 -28 36 35.7 9 3x240 1 21 4 7 N3 SUNY 04a-10 + S CrA 19 01 08.7 -36 57 19.8 11 3x300 1 24 4 28 STSI 04a-11 + Abell 41 17 29 02.1 -15 13 04 15.6 4x600 3 51 4 52 A YALE 04a-11 1 HD_180482 19 16 31.03 +04 50 05.3 5.58 3x 30 2 12 5 43 STSI 04a-03 3 alpha Del 20 39 38.3 +15 54 44 3.8 3x 3 1 9 5 55 end 6 04 If there is any time left before dawn, select from among the following: YALE 04a-11 1 RR_429 15 41 24.25 -00 22 25.2 15.2 3x600 2 40 YALE 04a-11 3 RR_444 15 52 43.82 -00 39 31.1 15.7 3x600 2 40 SUNY 04a-10 3 RU Lup 15 56 42.3 -37 49 15.5 11 3x300 1 24 YALE 04a-11 3 RR_466 16 12 44.52 -00 21 44.0 15.4 3x600 2 39 SUNY 04a-11 3 V475 Sct 18 49 37.7 -9 33 52.7 14 3x600 1 39 SUNY 04a-01 2 QS Tel 19 38 35.73 -46 12 56.5 16 3x400 1 29 C 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 you do not see the star in the acquisition TV M*: moon within 5 degrees. Skip if you do not see the star in the acquisition TV A. Target is central star of a planetary nebula. The nebula is faint and may not be visible on the TV. Observing sequence: Comp spectrum, 2x600, comp, 2x600, comp. Observation must be centered about 0920 UT (0520 CST) If necessary, juggle targets so you start between 0440 and 0510 CST. C: cataclysmic variable. May be fainter than in finding chart. Skip if not visible. If visible but much fainter than on chart, increase exposure times to 3x600. F: faint target may be hard to see with full moon up. N: eruptive variable. Finding chart is in www.astro.sunysb.edu/fwalter/SMARTS/FC/iras05436.jpg N3: formerly known as Nova Sag 2004 R: radial velocity standard for STSI programs. X: new nova (IAU Circular 8323) Check the first exposure to make sure there is no part that is saturated (this is possible if there are very strong emission lines); if so, reduce the exposure and take 3 good ones. If the first spectrum is very underexposed, increase the exposure accordingly. 3: 5 arcsec SE of brighter star. PM: may have significant proper motion. -------------------------------------------------------------------- General Notes: Astronomical ephemerides are from SKYCAL,by John Thorstensen Pri: Target priority. + = observe at all costs! 1 = observe object if possible 2 = extra targets; observe only if no Priority 1 target is available 3 = backup/filler targets; low priority Cmp: 1 means take comparison spectrum only before target exposures; 2 means before and after .............................................................................. Notes about finding charts: RA & Dec: all coordinates are accurate to 1"; charts can be generated by operator as necessary using LEDAS or DSS. Charts for many objects should be available at the telescope. SUNY 04a-01: Finding charts are available at http://www.astro.sunysb.edu/fwalter/SMARTS/2003B/suny03b-01.tar.gz Chart for V834 Cen is at http://www.astro.sunysb.edu/fwalter/SMARTS/FC/V834_Cen.jpg SUNY 04a-02: Finding charts are available at http://www.astro.sunysb.edu/fwalter/SMARTS/2003B/suny03b-02.tar.gz Chart for EX Lup is at http://www.astro.sunysb.edu/fwalter/SMARTS/FC/exlup_fc.ps Chart for IRAS05436 is at http://www.astro.sunysb.edu/fwalter/SMARTS/FC/iras05436.jpg SUNY 04a-03: Finding charts for the KWW targets are available in http://www.astro.sunysb.edu/fwalter/SMARTS/FC/kww_fc.tar.gz (6 jpeg images) SUNY 04a-12: Finding charts are in http://www.astro.sunysb.edu/fwalter/SMARTS/FC/suny-012.tar.gz YALE 04a-99: Finding charts is at http://www.astro.yale.edu/buxton/smarts/find_charts/J1628.html .............................................................................. Questions may be addressed to: Howard Bond bond@stsci.edu (STSI programs) Nolan Walborn walborn@stsci.edu (program STSI 04a-05) Fred Walter fwalter@astro.sunysb.edu (SUNY programs)