Date: Fri, 23 Feb 2001 05:42:41 -0700
From: Dan Long
Subject: 2.5m obslog 20010222 (MJD 51963)
                   APACHE POINT OBSERVATORY SDSS 2.5M
                             OBSERVING LOG
                         Thursday February 22, 2001
                               (MJD 51963)
OBSERVING TEAM:
===============
Dan Long          (APO)
Mike Harvanek     (APO)
Bing Chen         (JHU) PT
VISITORS:
=========
Bill Boroski      (FNAL)
                               THE PLAN:
                               =========
    Science.
                               SYNOPSIS:
                               =========
    Cloudy all night.  We never opened.
          GENERAL COMMENTS (see Problems below for details):
          ==================================================
    We put cartridge 1 on at the start of the night in hopes it would
clear enough to make it worth opening.  It never did.  There was
mention in French's day log about possibly needing to apply extra
force to mount a cartridge after the id switch work today.  We found
cartridge 1 mounted in the normal way, running up to about 550 lb at
23" on the lift.
    Clouds, clouds, clouds.
         DATA ACQUISITION (see IOP/SOP output below):
          ===========================================
IMAGING:
--------
Run Stripe Strip    Flavor        Lambda      Last
                              Begin      End   Frame #  Comments
------------------------------------------------------------------
  2128  100 O        ignore  -143.54   -139.62   39    test bias
SPECTROSCOPY:
-------------
  UT    Exp   Time  flavor     comment       (S/N)^2 totals
========================================== b1   r1   b2   r2
------ sequence 8851, plate 548 -------
  01:33 8851  0.0   bias        {{}}
------ sequence 8852, plate -9999 -------
  02:09 8852  0.0   bias        {{}}
OFFSETS:
               getclock             Calib offsets           Scale
  Time Ct Plate  time         Az         El         Rot     Factor
TAPES:
    Goes:  None
    Stays: None
                            MIRROR NUMBERS
                            ==============
PRIMARY:
--------
Scale:    1.000000
--------
MIGS        TONIGHT   SHOULD BE ( from 12/19 )
Axial A:     0.0190    0.0150  +/-.05
Axial B:    -0.0370   -0.0510  +/-.05
Axial C:     0.0440    0.0300  +/-.05
Trans D:     3.7640    3.7560  +/-.05
Lateral E:   1.9090    1.9100  +/-.002
Lateral F:   0.4095    0.4095  +/-.002
GALILS
Commanded: 4890. -2755. 465. -6642. 8737. 8322.
Actual:    4900. -2750. 450. -6650. 8750. 8300.
SETMIR VALUES
primDesOrient: 0.00 -4.40 10.70 586.50 240.70
primOrient:    0.00 -4.56 10.53 586.58 240.03
SECONDARY:
----------
Focus:    0.0
Air temp: 5.4   C
Altitude: 29.98
MIGS        TONIGHT    SHOULD BE ( if alt=30, foc=0, inst=spectro )
Axial A:    -1.2950    -1.29  +/-.05
Axial B:    -1.3000    -1.30  +/-.05
Axial C:    -1.3100    -1.31  +/-.05
Trans D:     0.2010     0.20  +/-.05
GALILS
Commanded: 1583837. 1583837. 1583837. 2595. 3795.
Actual:    1583838. 1583951. 1583599. 2600. 3800.
SETMIR VALUES
secDesOrient: 1257.00  0.00  0.00  0.00 -175.00
secOrient:    1256.98  0.00 -0.01 -0.01 -175.13
                              FOCUS LOG:
                              ==========
                        setmir piston                 Temp  Wind
Time   Inst    scale     M1    M2   Foc    Az Alt     C   MPH Dir filt  fwhm "
16:50 Doors open, fan on
18:00 Waiting on clouds
05:00 Doors closed, fan off
                            WEATHER SYNOPSIS
                            ================
    It was cloudy all night.
                              WEATHER DATA:
                              =============
                             Wind
      Time   Temp F Dewp F  MPH   Direction    Dust  DIMM   Sky
      16:01    46    14     15   215  (SW)     479    -    Cloudy
      17:01    44    14     17   204  (SSW)    517    -    Cloudy
      18:01    42    13     12   213  (SSW)    541    -    Cloudy
      19:01    42    12     14   203  (SSW)    526    -    Cloudy
      20:01    41    12     18   202  (SSW)    968    -    Cloudy
      21:01    40    13     16   192  (SSW)   1275    -    Cloudy
      22:01    42     9     13   189  (S)     1187    -    Cloudy
      23:01    42     8      9   232  (SW)     722    -    Cloudy
      00:01    42     8      9   196  (SSW)    546    -    Cloudy
      01:01    41    10     14   194  (SSW)    630    -    Cloudy
      02:01    40    11     15   205  (SSW)    609    -    Cloudy
      03:01    39    12     10   198  (SSW)    597    -    Cloudy
      04:01    39    13      9   246  (WSW)    677    -    Cloudy
      05:01    38    14     11   260  (W)      714    -    Cloudy
                              LN2 SCHEDULE:
                              =============
    Spectrograph dewar                          06:00 Dewar wt  227 lb
    Imager dewar                                06:00 Dewar wt  144 lb
                           TELESCOPE STATUS:
                           =================
    Stowed at 30 deg alt, Cartridge 1 installed. Spectro auto-fill connected.
INTERLOCKS:
===========
none bypassed
SOFTWARE USED:
==============
IOP/SOP: v3_29_4
Watcher: v2_8_14
MCP: v4_5_1
TPM: v2_2_2
AstroDa: 14_34
TCC: 2.5.0b2
PROBLEMS IN DETAIL:
===================
    Atmospheric instability and an influx of high level moisture due
to a low pressure system off the Pacific coast of California resulted
in a uniform and nearly opaque cirro-stratus layer.