From: "Noel Camron Hastings"
Subject: 3.5m Night Log 20010325
Date: Mon, 26 Mar 2001 05:20:45 -0700
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                        Sunday, March 25th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 W.Zheng       Z.Tsvetenov             DIS-low         18:15  21:46
                                                       22:16  05:23
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 JH04/R      19:12 05:05   0.5   0    0    0   9.4   0    0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
Observing Specialist: Camron Hastings
    Sky was clear and weather was cooperative tonight. We did not open
until 18:55 MST due to grating switches and observer calibrations, but
all went smoothly.
    Once science observing started early and the seeing was again amazing
according to the guider. DIS is limited by optics to about 1", so it was
performing at its best.
    Clouds became too thick to observe the faint targets this program was
looking at around 21:50. It cleared up again at 22:20 and we continued
for the rest of the night with stable and excellent seeing.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 18:59  DIS Slit   -30(876)   -39 59   7.8/9.0    209  14  none   1.01"
 19:10  NA2 Gdr   3000(874)   -41 58   7.6/8.9    196  12  none   0.66"
 20:07  DIS Slit  -120(669)   -03 76   6.1/7.1    182  12  none   1.01"
 20:08  NA2 Gdr    240(670)   -04 76   6.1/6.9    188  12  none   0.78"
 21:21  DIS Slit  -020(745)   -79 67   5.8/6.0    188  13  none   0.97"
 21:23  NA2 Gdr   -933(745)   -79 67   5.8/6.0    180  14  none   0.87"
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    51    28      8   220  (SW)     734   Clear       none
     17:01    49    28     13   219  (SW)     739   Clear       none
     18:01    46    25     10   210  (SSW)    654   Clear       none
     19:01    43    26     14   207  (SSW)    819   Clear       none
     20:01    43    30     12   183  (S)     1056   Cirrus      none
     21:01    43    24     12   189  (S)      962   Cirrus      none
     22:01    44    20     14   185  (S)      768   Cirrus      none
     23:01    44    24      8   203  (SSW)    924   cirrus      none
     00:01    44    21     11   214  (SW)     834   Clear       none
     01:01    44    22     11   219  (SW)     855   Clear       none
     02:01    43    25      8   245  (WSW)    879   Clear       none
     03:01    42    29     11   226  (SW)     951   Clear       none
     04:01    41    32     12   212  (SSW)   1217   Clear       none
     05:01    42    31     10   246  (WSW)   1112   Clear       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: 2.5.1
  Current MC version: v1_7_3.