Date: Fri, 10 Oct 2008 07:41:50 -0600 (MDT)
Subject: 3.5m Night Log 20081009
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                       Thursday, October 09, 2008
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 T.Murphy     R.McMillan                APOLLO        18:40  19:40
 D.Hoffman    D.Hoffman, T. Harrison    DIS           19:45  00:50
 J.Lutz       J.Lutz, A.Mukadam         Agile         01:00  06:53
   INST     SCHED(TWILIGHT) WEATH     EQUIP      OBS     DAY  NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B   USE   D    B
 ---------------------------------------------------------------------
 UW17/R     18:45  19:45    0    0    0    0    0   0.3  0.7    0    0
 NM02/R     19:45  01:05    0    0    0    0    0   5.2   0    0    0
 UW16/R     01:05  06:11    0    0    0    0   3.4  1.8   0    0    0
  note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
 Alt vel scale -632.9 was -637.0 changed -633.0
 Az  vel scale  579.4 was 588.0 changed 580.0
We had some NA2 rotator problems tonight. PR submitted
Watched TSPEC temps all night, most were cooled to around 80K by the morning.
Filled TSPEC main tank this morning.  took about 35 mins to fill and there was a lot of back
pressure on the main fill port when I took the hose off, after filling.  I bled pressure off the
main tank thru the main fill port for 3-4 mins before capping it off.  Is the vent partially
plugged by chance?  It was venting thru the vent pipe (didn't take off the vent port cap during
the fill) but not with the vigor as when I took the main fill line off.
                       ------- FAILURE LOG -------
  PROG   INST   FAILURE MODE     TIME
       (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
 18:39 APOLLO  100(1366)    52  36  12.1 14.9 13.3 14.0  12.9  --  1.8
 19:46 DISslit  -29(192)    39  51  11.1 12.7 12.1 11.7  11.3  --  1.5
 21:05 DISslit  -74(127)  -149  31  11.3 11.3 11.4 10.5  10.9  --  1.5
 01:05 AGILE  -124(-339)    25  52   9.5  9.7  9.9  9.2   9.5   U  2.0
 01:17 NA2gdr 360(11000)    20  53   9.7  9.6  9.8  9.0   9.3   R  1.5
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     16:00    61    36     20   243  (WSW)    637    clear     none
     17:00    60    36     11   272    (W)    779    clear     none
     18:00    57    36     11   261    (W)    819    clear     none
     19:00    54    33     12   230   (SW)    833   pt. cldy   none
     20:00    52    32     18   245  (WSW)   1395    clear     none
     21:00    52    33      8   245  (WSW)    966    clear     none
     22:00    52    32     14   256  (WSW)    977   pt. cldy   none
     23:00    50    34     15   231   (SW)   1048   pt. cldy   none
     00:00    51    35     14   231   (SW)    962   pt. cldy   none
     01:00    49    36     11   218   (SW)   1047   pt. cldy   none
     02:00    48    38     17   233   (SW)   1264   pt. cldy   none
     03:00    48    38     17   245  (WSW)   1199   pt. cldy   none
     04:00    48    37     10   256  (WSW)   1151    clear     none
     05:00    48    34     14   234   (SW)    988    clear     none
     06:00    47    36     20   233   (SW)    895    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
      Telescope drives operational. Current TCC version: 2.9.1
      Current TUI version: TUI 1.5