FM Walter 8/20/03 rev. 8/31/03 SMARTS 1.5m Service Observing Program 030901 --- EPHEMERIS INFORMATION --- For the night of: Mon, 2003 Sep 1 ---> Tue, 2003 Sep 2 Local midnight = 2003 Sep 2, 4 hr UT, or JD 2452884.667 Local Mean Sidereal time at midnight = 22 00 20.3 Sunset ( 2215 m horizon): 18 35 CST; Sunrise: 6 51 CST Evening twilight: 19 48 CST; LMST at evening twilight: 17 47 Morning twilight: 5 38 CST; LMST at morning twilight: 3 39 Moonset : 0 06 CST Moon at civil midnight: illuminated fraction 0.339 1.4 days before first quarter, RA and dec: 15 12 38, -17 25.3 The sun is down for 12.3 hr; 9.8 hr from eve->morn 18 deg twilight. .............................................................................. Civil date Setup Program(s) Sept 1 47/Ib, 47/II, 47/Ib (two grating tilt changes during night) 47/II SUNY 03b-10/Walter 47/II SUNY 03b-13/Walter 47/Ib STSI 03b-04/Bond 47/Ib STSI 03b-08/Walborn 47/Ib SUNY 03b-10/Walter 47/Ib SUNY 03b-02/Stringfellow & Walter 47/Ib SUNY 03b-11/Stringfellow & Walter .............................................................................. 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/II 83.0 CuSO4 620 47 27.39 He-Ar 45 200 280 TBD 3550 3878-4552 1.6 .............................................................................. New notes: Based on performance earlier this semester, I am assuming that observations can start about 30 minutes before the end of astronomical twilight. The T column lists the approximate time in minutes for this line. This includes 5 minutes acquisition plus 1 minute for the comparison. The UT 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 30 minutes for a change in the grating tilt/filter. .............................................................................. In afternoon or during dinner: - Install 47/Ib grating setup - check focus if necessary - obtain at least 10 Zero frames - obtain at least 5, preferably 10, flat-field frames (projector or dome) ** 47/Ib ** 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. Program Pri Target RA (J2000) Dec mag Exp Cmp T UT STSI 03b-04 + Nova Cru 12 23 16.2 -60 22 34 ~10 3x250 1 22 1908 7 ** SUNY 03b-10 1 RU Lup 15 56 42.31 -37 49 15.5 3x120 1 15 1930 SUNY 03b-10 1 V866 Sco 16 11 31.40 -18 38 24.5 3x150 1 17 1945 STSI 03b-08 1 HD 148937 16 33 52.2 -48 06 40 6.7 3x 60 1 12 2002 SUNY 03b-10 2 Oph 118 16 31 15.77 -24 34 02.1 3x300 1 24 2014 SUNY 03b-10 1 V1121 Oph 16 49 15.31 -14 22 08.6 3x100 1 14 2038 SUNY 03b-10 2 V4046 Sgr 18 14 10.47 -32 47 34.5 3x100 1 14 2052 STSI 03b-04 2 V4745 Sgr 18 40 02.5 -33 26 55 ~12 3x 90 1 12 2106 SUNY 03b-11 + N Sct 2003 18 49 37.7 -9 33 52.7 9.5 3x120 1 15 2118 7 SUNY 03b-10 1 S CrA 19 01 08.69 -36 57 19.8 3x120 1 15 2133 STSI 03b-04 1 V4743 Sgr 19 01 09.4 -22 00 06 ~12 3x400 1 29 2148 cal 1 Feige 110 23 19 58.39 -05 09 55.8 11.8 3x240 1 21 2222 end 47/Ib setup 2243 ****************** 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/II setup. **47/II** SUNY 03b-10 1 V4046 Sgr 18 14 10.47 -32 47 34.5 3x600 1 39 2313 SUNY 03b-11 + N Sct 2003 18 49 37.7 -9 33 52.7 9.5 3x400 1 29 2352 7 SUNY 03b-10 2 FK Ser 18 20 22.75 -10 11 13.6 9.5 3x240 1 21 021 SUNY 03b-10 1 S CrA 19 01 08.69 -36 57 19.8 3x600 1 39 042 SUNY 03b-10 2 PZ Tel 18 53 05.9 -50 10 50 8.4 3x180 1 19 121 cal 1 Feige 110 23 19 58.4 -05 09 56 11.8 3x300 1 24 140 SUNY 03b-10 2 CF Tuc 0 53 07.77 -74 39 05.6 7.6 3x150 1 18 204 SUNY 03b-10 3 FF Aqr 22 00 35.2 -02 44 33 9.3 3x200 1 21 225 SUNY 03b-13 1 AB Dor 5 28 44.8 -65 26 54.8 7.0 3x100 1 15 243 5 Take 5-10 projector flats with 47/II setup. 258 end 47/II setup 303 ****************** 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/Ib setup. **47/Ib** cal 1 Feige 110 23 19 58.39 -05 09 55.8 11.8 3x240 1 21 333 SUNY 03b-13 2 AB Dor 5 28 44.8 -65 26 54.8 7.0 3x 90 1 13 354 SUNY 03b-02 1 NY Ori 05 35 37 -05 12 24 15.0 3x600 1 39 407 6, 7 SUNY 03b-02 1 V1118 Ori 05 34 44.66 -05 33 41.3 16.5 3x600 1 39 446 7 SUNY 03b-02 2 T Tau 04 21 59.43 +19 32 06.4 9.5 3x200 1 19 525 3 SUNY 03b-02 1 DR Tau 04 47 05.48 +16 58 42.1 11.5 3x200 1 19 544 3 Take 5-10 projector or dome flats with 47/Ib setup. 603 end 47/Ib 608 If you did not get twilight spectra at the start of the night, then 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. -------------------------------------------------------------------- Backup targets: 47/II setup: If you are running early and AB Dor is behind the 4m dome, add this target: SUNY 03b-10 3 BQ Hyi 2 18 00.84 -71 28 02.8 8.3 3x200 1 19 47/Ib setup at end of night: SUNY 03b-02 3 YY Ori 05 34 47.54 -05 57 56.9 13.6 3x300 1 24 In case of thick cirrus, you may want to consider going to the bright target list. --------------------------------------------------------------------- Remarks: **: Nova Crux is an important and time-critical target. It is, however, 5 hours west 20 minutes before the end of astronomical twilight. Please make every effort to start early. I'm assuming you can start about 40 minutes before the end of twilight, or about 1908 CST. If you cannot start before 1930 CST, skip this target. If any part of the spectrum is saturated, repeat with 60 second exposures. 1: moon within 10 degrees. Skip if you do not see the star in the acquisition TV 2: 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. 3: Far northern target. Hour angle must be less than ~2h. 4: not observable before about 0530 local time. 5: may be behind 4m dome if you are running early. Wait a few minutes if it will clear soon. 6: 5 arcsec SE of brighter star. 7: variable star. If any emission lines are saturated, please repeat observation with shorter exposure times. -------------------------------------------------------------------- General Notes: Astronomical ephemerides are from SKYCAL,by John Thorstensen Pri: Target priority. + Time critical or TOO target. Highest priority 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 were prepared at telescope in February and should be available. STSI 03b-02: Most of the stars have large proper motions, so charts may be necessary to find them. A complete set of charts has been posted at http://www.stsci.edu/~bond/valenti_finding_charts.pdf , which you should download and print out (12 MB pdf file). The charts mark where the stars will be in 2003. Some of the stars are binaries, and the remarks give the separations. If both components are listed, try to obtain separate spectra of each component. STSI 03b-03: The finding charts are in two binders at the telescope. SUNY 03b-02: Finding charts are available at http://www.astro.sunysb.edu/fwalter/SMARTS/2003B/suny03b-02.tar.gz SUNY 03b-11: Finding chart for Nova Sct 2003 ia available at http://www.astro.sunysb.edu/fwalter/SMARTS/2003B/nova_sct.gif CHIL 03b-01: Charts are at http://www.stsci.edu/~bond/Ogle005312.jpg and http://www.stsci.edu/~bond/Ogle051553.jpg , but Dr. Mennickent has been asked to send you better ones. YALE 03b-08: These are galaxies, but they may look almost stellar. .............................................................................. Questions may be addressed to: Howard Bond bond@stsci.edu (program STSI 03b-11) Nolan Walborn walborn@stsci.edu (program STSI 03b-08) Fred Walter fwalter@astro.sunysb.edu (SUNY programs)