Hi All,
Observing:
----------
120917 07:52:21 - still running
* 9_CMB_36d_dk068_015.sch
* MCE error @ 120917 15:20:57:
/usr/mce/mce_script//script/mce_update_userword: line 27:
array_integer + 256 * Reply does not match command. : syntax error:
invalid arithmetic operator (error token is ". ")
120917 07:43:45 - 120917 07:45:10
* mce_autotune.sch
* MASD restart, DSP driver reload & mce_reset_clean, GCP restart
after running schedule.
120917 02:46:53 - 120917 04:14:50
* starpoint_pole_bicep_summer.sch
* Tilts: 10.492
az 0° 180°
x -8.904 -9.432
y 9.371
120917 02:24:19 - 120917 02:29:55
* do_cycle.sch
* dk=0 mark OK
* cleaned GS, boot, UFB, LFB, window
* Membrane 0.1/0.4
120914 08:14:11 - 120917 02:02:51
* 9_CMB_36c_dk293_015.sch
120914 08:07:53 - 120914 08:09:17
* mce_autotune.sch
* MASD restart, DSP driver reload & mce_reset_clean, GCP restart
after running schedule.
120914 08:05:10 - 120914 08:05:54
* mce_autotune.sch
* Failed
120914 02:37:50 - 120914 02:43:27
* do_cycle.sch
* Tilts:
az 0° 180°
x -8.904 -9.432
y 9.371 10.492
dk=0 mark OK
cleaned GS, boot, UFB, LFB, window
Membrane 0.12/0.45
120911 08:18:49 - 120914 02:14:39
* 9_CMB_36c_dk248_015.sch
Telescope:
----------
- One pointing schedule
- One non-fatal MCE errors
- Load leveler temperature spiked and exhaust fan came on during 9/14
schedule. We worked for several hours throughout the night to
reconfigure things to lower the temperature. Still working on a
permanent fix. Weather was pretty bad during all this.
Weather
--------
- Windy and overcast, followed by some clear days
Cryogenics:
-----------
* Tracking spreadsheet at
http://bicep.rc.fas.harvard.edu/bicep2/south_pole_helium_usage/Summer_2011_…
* Kathleen's Cryo Sitrep:
LHe:
• Approximately 4600 liters of useable LHe remain in the Wessington dewars.
• Approximately 500 liters of LHe were delivered to BICEP2.
• Based on a historical consumption rate of 35.7 liters/day, LHe
supplies are expected to be exhausted by January 2013
GHe:
• Out of 16 storage tanks for gaseous helium: 7 tanks are at 17.2 MPa
(2500 psi), one tank is at 13.8 MPa (2000 psi), one tank is at 10.3 MPa
(1500 psi), one tanks is at 4.8 MPa (700 psi), three tanks are at 1.4
MPa (200 psi), two tanks are at 1.0 MPa (150 psi), and one tank is at 0
MPa (0 psi).
• Vent GHe from the LHe transfer was compressed into the storage tanks.
LN2:
• The liquid nitrogen plant tuned off all week
• Approximately 350 liters of LN2 are currently stockpiled on station.
Analysis/software/computers:
----------------------------
- Nothing to report
Cheers,
Steffen