From: Russet McMillan
Subject: 3.5m Night Log 20010220
Date: Wed, 21 Feb 2001 06:37:06 -0700 (MST)
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                      Tuesday, February 20th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 B.Woodgate    B.Woodgate,P.Palunas    Fabry-Perot     17:27  06:20
               J.Rhodes, D.York
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
  I/RO/DN    START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 DD02/O      18:47  05:46   0    0    0    0  11.0   0    0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 Observing Specialist, 1st Shift: Noel Camron Hastings
     The Fabry-Perot team worked on last minute changes and then we
opened the dome for cooling at 17:27 MST.
     I was only in for a short while to setup the telescope and then
Russet came in to take over at 18:15 MST. All systems were tested and
running smoothly.
 Observing Specialist, 2nd Shift: Russet McMillan
 After some time spent working on calibrations, the GFP team was ready
 to start observations around 20:30.  By that time, the telescope was
 well cooled, so the focus values were consistent for most of the
 night.  Seeing was good (0.6-1.4 arcsec on the guider, with several
 hours of consistent subarcsecond seeing), and the telescope pointing
 was excellent.  On two occasions, secondary updates did cause an
 image jump, so observing specialists should make an effort to time
 updates between exposures.  The only other difficulties were shooting
 through the clouds and a few instrument problems.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ---------------------------------------------------------------------
 20:28 GFP        -25(996)    103 55  4.2/5.1    262  14   8500  0.95
 20:31 NA2gdr *  -3875(60124) 103 56  4.0/5.0    266  15   none  0.91
 00:05 GFP        0(988)      155 61  4.9/4.7    267  8    8200  1.01
* The guider focus zeropoint was changed after this measurement.
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    50    13      7   231  (SW)     592   clear      none
     17:01    47    13     13   249  (WSW)    597   clear      none
     18:01    43    11     12   242  (WSW)    590   clear      none
     19:01    41    12     14   220  (SW)     656   clear      none
     20:01    41     9     13   267  (W)      628  mstly clr   none
     21:01    38    12     10   260  (W)      563   cirrus     none
     22:01    40    12     10   264  (W)      638   cirrus     none
     23:01    42    13      9   269  (W)      562   cirrus     none
     00:01    41    12      9   273  (W)      614  mstly clr   none
     01:01    41    13     13   266  (W)      663   cirrus     none
     02:01    41    14     12   266  (W)      614  mstly clr   none
     03:01    40    15     18   250  (WSW)    571  mstly clr   none
     04:01    39    15     12   265  (W)      538  mstly clr   none
     05:01    39    15     14   268  (W)      542  mstly clr   none
     06:01    38    16     11   276  (W)      546  mstly clr   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
  Primary, secondary, and tertiary mirrors in place and collimated.
  Primary support system operational. Mirror ventilation system in place.
  Telescope drives operational. Current Remark version: 2.62. Current
  guide software version: GIm Ctrlv3.0b27. Current TCC version: 2.5.0b2
  Current MC version: v1_7_3.