Date: Wed, 25 Aug 2010 06:20:05 -0600 (MDT)
Subject: 3.5m Night Log 20100824
From: "Jack Dembicky"
                        Apache Point Observatory
                        3.5m Telescope Night Log
                         Tuesday August 24, 2010
                                                         ACTUAL
 ASTRONOMER     OBSERVER(S)             INSTRUMENT    START  FINISH
 -------------------------------------------------------------------
 M.Klaene       J.Dembicky              NA2Guider     04:00  06:25
                                        Echelle
  PROG        SCHEDULED      WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH    D    B    D    B    D    B    D    B
 ------------------------------------------------------------------
 EN01/R     19:46  06:25     0   8.2   0    0    0   2.4    0    0
   note: scheduled times listed include instrument change time
                ------------- ACTIVITY LOG --------------
 Observing Specialist: J.Dembicky
SPIcam temp 175.5K @ 03:30
SPIcam temp 174.1K @ 06:10
Brrr... A cold front hit us tonight.  Winds, clouds, rain, fog, and humidity as the temperature
dropped into the upper 40's.
Zero'ed rotator - 3.063 degrees off, not suprising since they worked on the motor today.
I opened at 04:00 with a few clouds remaining in the N/NW part of the sky, but I think doable to
get a pointing model done. The seeing was pretty poor tonight, probably due to the cold front that
moved in.
I started an 80 point pointing model around 04:20.  Implemented and sent out copies to the
appropriate people.
Checked/corrected pointing for the Echelle.
DIS blue ion pump had about 5-4 green LEDs lit (above tape cover) at 04:00 when I opened.  The
LEDs were still lit (same number) at 06:20 when I closed up for the night.  Probably just a wisker
on the ion pump but daystaff (Bill) should keep an eye during the day on this.
                ------------- FAILURE LOG --------------
  PROG   INST   FAILURE MODE     TIME
      (STEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
 ----------------------------------------------------------------------
               ---------------- FOCUS LOG ---------------
 Time  Instrument  Focus    Az  El  Temp Strc Prim  Sec  Air  filt FWHM
 -----------------------------------------------------------------------
 04:19 GUIDER   -20(  305) -45  41   8.2  9.1  9.6  8.3  8.2   R  2.60
 05:56 ECHELLE  -175( -733)  55  67   8.3  8.0  8.5  7.8  8.0   ND3  2.60
                 ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    -------------------------------------------------------------------
     18:00    50    49     25    61  (ENE)     29   cloudy    humid
     19:00    50    48     22    72  (ENE)     20   cloudy    humid
     20:00    49    48     24    78  (ENE)    105   cloudy    humid
     21:00    49    49     30    67  (ENE)    809   cloudy    humid
     22:00    49    48     26    66  (ENE)     90   cloudy    humid
     23:00    48    48     33    69  (ENE)     29   cloudy    humid
     00:00    46    46     27    67  (ENE)   7164  ptly cldy  humid
     01:00    46    41     22    62  (ENE)    525 mstly cldy  humid
     02:00    45    39     21    75  (ENE)    595 mstly cldy   none
     03:00    44    37     31    73  (ENE)    643 mstly cldy   none
     04:00    46    30     25    70  (ENE)    511  ptly cldy   none
     05:00    47    25     25    74  (ENE)    564  mslty clr   none
     06:00    47    22     27    75  (ENE)    453  mstly clr   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: 2.13.0
      Current TUI version: 1.8.1