From:
Subject: 3.5m Night Log 20100524
Date: Mon, 24 May 2010 12:01:45 +0000 (UTC)
                       Apache Point Observatory
                       3.5m Telescope Night Log
                        Sunday, May 23, 2010
                                                          ACTUAL
 ASTRONOMER        OBSERVER(S)         INSTRUMENT      START  FINISH
 -------------------------------------------------------------------
 J.Wisniewski      J.Wisniewski        Tspec           20:15  21:10
 T.Murphy          R.McMillan          APOLLO          21:15  00:05
 G.Stringfellow    G.Stringfellow,     Tspec           00:10  01:15
                   D.Morris
 B.McNamara        J.Bornak            NICFPS          01:25  05:40
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 --------------------------------------------------------------------
 DD04/R     20:10  21:10    0    0    0    0    0   1.0   0   0
 DD02/O     21:10  00:10    0    0    0    0    0   3.0   0   0
 CU09/R     00:10  01:10    0    0    0    0    0   1.0   0   0
 NM02/R     01:10  05:50    0    0    0    0   2.4  2.3   0   0
 note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
 Observing Specialist: R.McMillan
 Clear skies first half, thin cirrus and rising dust second half.
 Seeing varied widely over the night, both from intrinsic variation
 and because we covered a wide range of wavelengths.  Measured seeing
 (all in the IR) ranged from 0.8 to 1.5 arcsec; estimated seeing at
 530 nm went up to several arcseconds when a front moved through.
 Serious trouble moving the telescope in azimuth at checkout was
 resolved before sunset by a combination of lowering the maximum
 acceleration and wiping down the drives.  Once we got on the sky,
 there were no further motion errors.  I didn't hear any bad
 noises from the azimuth tonight, but there was some altitude ringing
 while tracking a target low in the south ( 1u per 0.1 cubic feet.
                        TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 2.12.0
    Current TUI version: 1.7.2