Subject: 2.5m obs log 20000407 (mjd  51642)
Date: Sat,  8 Apr 2000 05:02:52 -0600 (MDT)
From: hayes@apo.nmsu.edu (Jeffrey Hayes)
[mail to: obs-report-25m@apo.nmsu.edu
          include MJD in subject]
APACHE POINT OBSERVATORY SDSS 2.5M
                                OBSERVING LOG
                           Wednesday April 7 2000
                                 (MJD 51642)
OBSERVING TEAM:
===============
                  Dan Long              1st shift  (APO)
                  Stephanie Snedden     1st shift  (APO)
                  Ellyne Kiney          2nd shift  (APO)
                  Jeffrey Hayes         2nd shift  (APO)
                  Eric Neilsen          PT         (JHU)
         Visitors:
                              THE PLAN:
                              =========
Since there is likely to be high cloudiness and poor seeing, we will do
spectroscopy.
                              SYNOPSIS:
                              =========
         GENERAL COMMENTS (see Problems below for details):
         ==================================================
The scale platforms that the instrument 180-liter dewars sit on are
loose and can come in contact with the floor and bind, giving a false
scale reading. French and crew are working on this, but in the meantime,
we should gently move the dewars when checking the scale readings to
make sure they are accurate.
During the afternoon, Jon Brinkmann and Jim Annis checked some bug fixes
in endNight and autoLskip in IOP v3_12_8. This is now the latest
version, but v3_12_2 is still the current version.
We started out the night with spectro cartridge 5, plate 270 mounted.
Winds went over the closure limit, so we delayed opening. Seeing was
extremely poor. Eric measured the fwhm to be between 5 and 6 arcsec
while he was taking focus images. DIMM was having trouble calculating
seeing but was able to measure values of between 3.5 and 4 .0 arcsec at
21:00.
A note from the first shift:  On Cartridge 5, fiber 10, we have a truely
disgusting amount of "grot" on that fiber.  The image is on shiva:/home/hayes
if it is wanted.  I can place it in a more general locale if required.
We obtained an estimate of the seeing: 7'' seeing at 04:30, with the gusting
at 33 mph, and sustained at over 25 mph.
As the weather failed to improve, and twilight within the half-hour,
we called it a night at 05:00.
         DATA ACQUISITION (see IOP/SOP output below):
         ===========================================
         IMAGING:
         --------
Run   Flavor   Frames   Notes
---   ------   ------   -----
SkyGang:
--------
         SPECTROSCOPY:
         -------------
Frame   flavor   expTime   Notes
-----   ------   -------   -----
			      TAPES
			      =====
Node    Ship to FNAL    Stay at APO
id1
id2
id3
id4
id5
id6
Gang
                          MIRROR NUMBERS
                          ==============
             *** Info taken at nominal primary piston ***
         Primary:
setmir( cmd ): 0.00  -3.9  3.9  213.5  213.5
galil( act ):  4850  -2350  100  -9500  50  -100
         linear gauges
                     Tonight     Nominal
1 = Axial A      =  1.9315      1.9315
2 = Axial B      =  0.5575      0.5570
3 = Axial C      =  0.5570      0.5570
4 = Transverse   =  0.4085      0.4075
5 = East Lateral =  1.8985      1.8980
6 = West Lateral =  0.3985      0.3990
         Secondary: ( inst=imager   focus=-359   alt= 71.7 deg  T=10.1C)
setmir( act ): -643.44, 5.05, -4.99, 49.95, -164.23
galil ( act ): -798404., -811210., -821661., 4350., -450.
         linear gauges
1 = Axial A      = 0.576
2 = Axial B      = 0.614
3 = Axial C      = 0.601
4 = Transverse   = 0.102
                              FOCUS LOG:
                              ==========
            M1 Piston  M2 Piston             Temp    Wind
Time  Inst   setmir  TCC  setmir  Az  El     C    Dir MPH  filt  FWHM "
                           WEATHER SYNOPSIS
                           ================
Partly cloudy to mostly clear (a few high clouds) with strong east
winds.
                             WEATHER DATA:
                             =============
                            Wind
     Time   Temp F Dewp F  MPH   Direction    Dust   DIMM   Sky
     16:01    60    14      5   318  (NW)     704      -    pcl
     17:01    58    13     14   328  (NNW)    586      -    pcl
     18:01    59    14      8   316  (NW)     567      -    pcl
     19:01    52    24     15    64  (ENE)   2347      -    pcl
     20:01    46    25     31    72  (ENE)   2192      -    pcl
     21:01    41    25     22    71  (ENE)   1975    ~4.0   mclear
     22:01    37    24     32    66  (ENE)   1518      -    mclear
     23:01    34    22     18    78  (ENE)   1892      -    mclear
     00:01    31    21     27    69  (ENE)   1940      -    mclear
     01:01    29    18     25    65  (ENE)   1907      -    mclear
     02:01    28    17     30    72  (ENE)   1759      -    mclear
     03:01    26    16     29    70  (ENE)   1305      -    clr
     04:01    25    14     28    73  (ENE)   1183      -    clr
     05:01    24    12     26    75  (ENE)   1080      -    clr
pcl=partly cloudy, mclear=mostly clear
                             LN2 SCHEDULE:
                             =============
The imager dewar was not changed tonight.  Dewar weight at EON 104 lb.
Spectrographs filled at 23:00 and 04:45.   Dewar weight  at EON 205 lb.
                          TELESCOPE STATUS:
                          =================
In enclosure at 30 degrees altitude with spectrograph cartridge 5
mounted.
         INTERLOCKS:
         -----------
None bypassed.
         SOFTWARE USED:
         --------------
IOP/SOP: v3_12_2
Watcher: v2_8_2
MCP: v4_2_1
TPM: v1_0_7
AstroDa: 14_20
TCC: 2.2.5
                          PROBLEMS IN DETAIL:
                          ===================
                        DATA LOGS FROM IOP/SOP:
                        =======================
Not available.