APACHE POINT OBSERVATORY SDSS 2.5M

                                 OBSERVING LOG
                           Saturday January 10, 2004

                                  (MJD 53015)

---=== OBSERVING TEAM ===---

        Stephanie Snedden

support: Jon Brinkmann
         Wendell Jordan

---=== OBSERVING PLAN ===---

        pre-shake checks

---=== OBSERVING SUMMARY ===---

Finished spectro monthly checkout. Cleaned az drive surface, but no new table, 
yet.
---=== OBSERVING LOG ===---

Spectro monthly checkout (cont. from last night):
=================================================
Biases & darks taken.

Bias percentiles:

Filename             02%     05%     10%     50%     90%     95%     98%   
-------------------  ------  ------  ------  ------  ------  ------  ------
sdR-b1-00024608.fit    -5.9    -4.1    -3.0     2.0     7.2     8.8    10.6
sdR-b1-00024608.fit    -5.9    -4.1    -3.0     2.0     7.2     8.8    10.6
sdR-b2-00024608.fit    -9.2    -6.7    -5.2     1.3     7.9     9.3    11.9
sdR-b2-00024608.fit    -9.2    -6.7    -5.2     1.3     7.9     9.3    11.9
sdR-r1-00024608.fit    -7.3    -5.4    -3.9     1.6     6.6     8.8    11.1
sdR-r1-00024608.fit    -7.3    -5.4    -3.9     1.6     6.6     8.8    11.1
sdR-r2-00024608.fit    -9.4    -6.9    -4.9     1.1     6.3     8.1    11.1
sdR-r2-00024608.fit    -9.4    -6.9    -4.9     1.1     6.3     8.1    11.1

Dark percentiles:

Filename             02%     05%     10%     50%     90%     95%     98%   
-------------------  ------  ------  ------  ------  ------  ------  ------
sdR-b1-00024610.fit    -3.1    -0.9     1.3     6.9    12.7    14.8    17.2
sdR-b1-00024610.fit    -3.1    -0.9     1.3     6.9    12.7    14.8    17.2
sdR-b2-00024610.fit    -4.8    -3.5    -0.9     5.8    13.7    15.0    17.6
sdR-b2-00024610.fit    -4.8    -3.5    -0.9     5.8    13.7    15.0    17.6
sdR-r1-00024610.fit    -5.1    -2.8    -1.3     4.7    11.0    13.3    15.6
sdR-r1-00024610.fit    -5.1    -2.8    -1.3     4.7    11.0    13.3    15.6
sdR-r2-00024610.fit    -7.2    -4.1    -2.0     4.3    10.6    13.6    17.6
sdR-r2-00024610.fit    -7.2    -4.1    -2.0     4.3    10.6    13.6    17.6


Fiducials:
==========
I tried getting more azimuth fiducial crossing data after cleaning the azimuth 
drive surface. This did reduce the errors for all but the 180 and 225 degree 
fiducials. There is an offset of about -4500 counts for the 180 deg fiducial 
and approx. +2000 counts for the 225 degree fiducial. I called Jon about 
getting these two fiducial blocks checked. Wendell will come in tomorrow 
(Sunday) to check them and generate new azimuth fiducial data. Once it is 
verified these two marks produce stable crossing values, I will check in a new 
azimuth fiducial table (tomorrow afternoon).

---=== SPECTROSCOPY DATA SUMMARY ===---

  UT    Exp   Time  flavor     comment       (S/N)^2 totals
========================================== b1   r1   b2   r2

 05:15 24611 0.0    dark          monthly checkout

---=== TELESCOPE STATUS ===---

Changed imager dewar at approx. 01:00Z

05:49Z spectro dewar weight - 199 lb
05:49Z imager dewar weight - 300 lb

---=== SOFTWARE USED ===---

	IOP/SOP: v3_125_1
	Watcher: v2_26_0
	MCP: v5_24_0
	TPM: tpm_v2_36_0
	AstroDa: v14_47
	TCC: 0
	sdssProcedures: v1_82 
	SoS: v4_10_7
	hoggPT: v1_6_9
	plate-mapper: v4_3_1