From: Russet McMillan
Subject: 3.5m Night Log 20070310
Date: Sun, 11 Mar 2007 06:37:42 -0700 (MST)
                         Apache Point Observatory
                         3.5m Telescope Night Log
                         Saturday, March 10, 2007
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
 -------------------------------------------------------------------
 B.Penprase      B.Penprase,D.Beeler    Echelle        20:30  20:50
                 I.Toro Martinez                       22:25  00:00
 N.Chanover      R.McMillan             NIC            00:10  00:55
                                                       04:45  07:05
  INST     SCHED(TWILIGHT)   WEATH     EQUIP     OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 DD04/O     19:01  00:00   3.1   0    0    0   1.9   0    0    0    0
 NM02/O     00:00  06:26    0   2.8   0    0   0.6  2.0   0    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 The night started with fairly heavy overcast.  When the cloud edge
 reached us, I opened, but soon closed due to nearby radar returns in
 the basin.  Those took their sweet time dissipating, then I re-opened.
 Observations with the echelle went smoothly, with pointing very
 consistent with the previous night.
 After midnight, more radar returns started showing up in the North.
 As with the first half rain, it stayed just about twenty miles away
 while the sky above us was mostly clear.  When I felt the rain
 threat was pretty much gone, other clouds started to move in above
 us.  Nevertheless, various test procedures were accomplished in
 preparation for next week's occultation.
 By dawn, heavy clouds were moving in again and rain approaching.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 ----------------------------------------------------------------------
 20:30  Echelle -71(-743)   19  44   7.9 8.33 7.51 7.84 7.84  ND1  1.2
 22:30  Echelle -120(-831) -22  42   7.3 7.28 6.30 6.89 7.03 Clear 1.4
 00:18  NICFPS  -49(503)   -71  61   7.0 7.18 6.22 6.74 6.75  Ks   0.96
                ------------- WEATHER LOG ----------------
                                   Wind
                                   Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky
                                   Conditions
    -------------------------------------------------------------------
     16:00    50    20     17   239  (WSW)    592   cloudy     none
     17:00    48    20     11   236   (SW)    611   cloudy     none
     18:00    47    17     18   232   (SW)    643   cloudy     none
     19:00    47    15     11   263    (W)    619   cloudy     none
     20:00    47    11     10   236   (SW)    575  ptly cldy   none
     21:00    47     9     13   249  (WSW)    545 mstly clr    none
     22:00    45     9      9   266    (W)    457 mstly clr    none
     23:00    45    12      9   316   (NW)    490 mstly clr    none
     00:00    44    10      8     1    (N)    554  ptly cldy   none
     01:00    43    18     18    11    (N)    505 mstly cldy   none
     03:00    41    17      8     2    (N)    493  ptly cldy   none
     04:00    40    16      8     4    (N)    721  ptly cldy   none
     05:00    41    13      6    13  (NNE)    929 mstly cldy   none
     06:00    41    11     11    21  (NNE)    868   cloudy     none
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
                              TELESCOPE STATUS
      Telescope drives operational. Current TCC version: 2.8.5
      Current TUI version: TUI 1.3