From: Russet McMillan
Subject: 3.5m Night Log 20010316
Date: Sat, 17 Mar 2001 05:03:36 -0700 (MST)
                        APACHE POINT OBSERVATORY
                        3.5m Telescope Night Log
                        Friday, March 16th, 2001
                                                          ACTUAL
 ASTRONOMER    OBSERVER(S)             INSTRUMENT      START  FINISH
 --------------------------------------------------------------------
 B.Pindor      B.Pindor                DIS-Low         21:53  00:00
                                                       01:10  04:40
   INST        SCHEDULED     WEATH     EQUIP     OBS     DAY  NOTUSED
 I/RO/DN     START FINISH   D    B    D    B    D    B   USE   D    B
 --------------------------------------------------------------------
 PU01/R      19:05 05:18   4.0  0.6   0    0   2.5  3.1   0    0    0
  note: scheduled times listed include instrument change time
                 ------------- ACTIVITY LOG --------------
 1st half Observing Specialist: Noel Camron Hastings
    The weather was not cooperative today, thick clouds kept us closed
much of first half. Jon Brinkman and I made some changes to the IRSC
chopper wheel which rectified the problems from last night, so the cloud
cam is again operational but not running at 100%.
    The clouds cleared enough to open at 19:50 MST and all started
smoothly. We focused under cirrus filled skies with decent seeing.
Telescope pointing was good, but not as good as the last couple nights. A
local pointing correction fixed it. I was received tertiary errors again
tonight. "Fit Error too large for Tert" and "Could not compute tert orient"
 2nd half Observing Specialist: Russet McMillan
We battled varying cloudiness and generally poor seeing during second
half.  The telescope was closed for about an hour after midnight; the
clouds weren't particularly threatening, but they were preventing us
from getting anything useful.  The observer decided to give up around
04:40 due to the clouds.
         --------------- INSTRUMENT FOCUS LOG ----------------
                                       Air/Truss   Wind
 Time   Instrument   Focus     Az El    Temp-C    Dir MPH  filt   FWHM"
 ----------------------------------------------------------------------
 21:59  DISslit    -120(465)   45 74   1.3/1.9    190  15  none   1.10"
 22:04  NA2 Gdr     201(465)   43 75   1.2/1.9    200  12  none   1.01"
 23:46  DISslit     0(650)    149 51   0.7/0.8    193  22   -     1.29
              ------------- WEATHER CONDITIONS ------------
                                 Wind                        Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:01    36     9      9   186  (S)     1733   cloudy     none
     17:01    35     7      2   185  (S)     1306   cloudy     none
     18:01    34    10     10   207  (SSW)    965   cloudy     none
     19:01    34    12      9   210  (SSW)   1258   cloudy     none
     20:01    34    12     17   212  (SSW)   1202   cloudy     none
     21:01    34    11     14   195  (SSW)   1385   cloudy     none
     22:01    34    10     17   202  (SSW)   1769   cirrus     none
     23:01    34    11     16   196  (SSW)   1787   cloudy     none
     00:01    34    15     23   196  (SSW)   1477  mstly cldy  none
     01:01    32    15     19   199  (SSW)   1533  ptly cldy   none
     02:01    32    15     17   206  (SSW)   1436  ptly cldy   none
     03:01    31    15     14   220  (SW)    1527  ptly cldy   none
     04:01    30    16     13   227  (SW)    1767  ptly cldy   none
     05:01    30    16     14   254  (WSW)   1778  ptly cldy   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.