
From ops@s2mass.ctio.noao.edu Thu May 14 12:22:45 1998
Date: Thu, 14 May 1998 11:43:17 GMT
From: 2MASS Operations Manager <ops@s2mass.ctio.noao.edu>
To: skrutski@north.phast.umass.edu, stiening@cannon.phast.umass.edu,
    ehwd@kutath.phast.umass.edu, osaa@ctios1.ctio.noao.edu,
    gbrehmer@ctios1.ctio.noao.edu, roc@ipac.caltech.edu,
    davy@ipac.caltech.edu, pugarte@ctios1.ctio.noao.edu,
    bouchet@ctiowf.ctio.noao.edu, gizis@stratford.phast.umass.edu




2MASS South Observing Log for Night # 440  (May 14/98 UT)

Observer: J.Vasquez

Weather Conditions:        23:00  The sky is clear all, but is high
                                  humidity (98%) 
                           00:05  Clear all, the humidity is decrease
                                  now is 84%
                           01:00  Clear
                           02:30  The sky is clear all
                           03:30  Clear
                           05:00  Clear
                           06:45  Clear
                           07:23  The night is total clear  
                           08:04  Clear absolutely  
                           09:10  Clear all
                           10:24  Clear
 
Moon phase: Waning gibbous with 91% of the moon's visible disk iluminated


Eyeball quality estimates: 23:00  Photometric
                           00:05  Photometric
                           01:00  Photometric
                           02:30  Photometric
                           03:30  Photometric
                           05:00  Photometric
                           06:30  Photometric 
                           07:23  Photometric
                           08:04  Photometric
                           09:10  Photometric
                           10:24  Photometric

Notes: Observation tonight is: "must -observe tiles" (omega Cen)
        
     - The SI2MASS is !crashes! because the lights of the electronic camera
       Control/Data Interface are stop, then execute again (option #9) of the
       Script menu, and restart the program in S2MASS and SI2MASS.

     - El SI2MASS esta !pegado! porque las luces de la Camara Electronica 
       Control/Data Interface estan detenidas, entonces se ejecuta de nuevo
       (opcion #9) del menu Script, y se restaura el programa en S2MASS y
       SI2MASS.  
       
     - In SI2MASS tonigth is in use "oscript"

     - When the lights of the control/data interface is good,the SI2MASS
       is failure also. (something up with the script?. !what's up!)       

     - Is curious, from the 05:49 in forward, the program in SI2MASS is
       working perfect, so...  

GMT    Scan    Comment
22:30          Closed Dome, because the humidity = 98%
22:30          Turn on the Fan
22:35          Camara filled in 3 minutes
22:40          Cts= -190 all
23:00          Waiting what the humidity is decrease
00:08          tt=10.4  focus=1010
00:16          Tur off the Fan
00:18   001    tt=9.9   bkg=549,2555,1845    ht=8.7 at=8.9 h=48
00:26   003    In this scan the program in SI2MASS is crashes, now re-boot 
               the computer and restart the observation
00:32   007    SI2MASS is crashes again, replan and restart the observing
01:47   010    tt=7.8   bkg=449,2207,1766   ht=5.8  at=7.8  h=45  
02:18   015    !OH! in this scan is visible a big estelar system, what screen
               cover, ( possible globular cumulu)
02:19   016    tt=7.7   bkg=450,2373,1686   ht=5.7  at=7.6  h=46         
02:40   019    tt=7.6   bkg=380,1947,1544   ht=5.7  at=7.1  h=46   
02:46   019    seeing H-band bkg variations, is possibly some moon reflection
02:56   026    tt=7.4   bkg=458,2536,1692   ht=5.8  at=7.0  h=47  
03:32          SI2Mass is !crashes! again, re-boot SI2mass, replan and restart
03:50   035    tt=7.0   bkg=315,1505,1436   ht=5.9  at=7.0  h=48
04:21   041    tt=6.9   bkg=301,1429,1411   ht=6.2  at=6.8  h=49
04:47          SI2mass is !crashes! again, replan and restart
05:02   050    tt=6.8   bkg=360,1829,1549   ht=6.0  at=6.9  h=45
05:15   055    tt=6.8   bkg=361,1763,1513   ht=5.8  at=7.0  h=43  
05:40   058    Definitively the "Script" of the SI2MASS is bad, this stop
               !crashes! every one or two scan.
05:49   062    tt=6.9   bkg=474,2474,1751   ht=6.5  at=6.8  h=43
06:36   072    tt=6.6   bkg=497,2551,1723   ht=4.8  at=6.6  h=47
07:05   076    tt=6.4   bkg=528,2722,1778   ht=4.5  at=6.4  h=46
07:12   076    H-band bkg variation
07:23   082    tt=6.3   bkg=627,3315,2101   ht=4.5  at=6.4  h=46
08:04   089    tt=6.0   bkg=514,2305,1705   ht=4.5  at=6.3  h=46     
08:35   098    tt=6.0   bkg=490,2136,1654   ht=4.5  at=6.3  h=45
09:10   103    tt=6.0   bkg=527,2522,1714   ht=4.7  at=6.3  h=44
09:41   112    tt=5.9   bkg=571,2691,1809   ht=4.4  at=6.3  h=44   
10:24   118    tt=5.7   bkg=603,2788,1856   ht=3.9  at=6.3  h=43
10:39   124    tt=5.6   bkg=592,2681,1822   ht=3.9  at=6.3  h=41
10:43   125    Twilight Flat       tt=5.6   ht=4.0  at=6.3  h=40
11:26          Cts= -190 all 
11:27   130    Dark Frame 
11:40          Camara Filled in 3 minutes
               The data tape was written in COMPRESS format 
