Hi All,
Observing:
----------
121022 23:41:18 - 121022 23:47:05
* do_cycle.sch
* Tilts:
az 0° 180°
x -9.256 -9.256
y 10.042 10.305
* dk=0 mark OK
* cleaned GS, boot, UFB, LFB, window
* Membrane 0.12/0.45
121020 05:43:07 - 121022 23:41:18
* 9_CMB_36b_dk293_016.sch
121020 05:35:45 - 121020 05:37:10
* mce_autotune.sch
* MASD restart, DSP driver reload & mce_reset_clean, GCP restart
after running schedule.
121020 02:35:20 - 121020 03:46:04
* starpoint_pole_bicep_summer.sch
* Tilts:
az 0° 180°
x -9.256 -8.937
y 9.602 10.437
121020 00:08:37 - 121020 00:14:15
* do_cycle.sch
* dk=0 mark OK
* cleaned GS
* Membrane 0.12/0.40
121017 05:50:21 - 121019 23:53:06
* 9_CMB_36b_dk248_016.sch
121017 05:44:57 - 121017 05:46:21
* mce_autotune.sch
* MASD restart, DSP driver reload & mce_reset_clean, GCP restart
after running schedule.
121017 00:08:22 - 121017 00:13:59
* do_cycle.sch
* Tilts:
az 0° 180°
x -8.904 -9.377
y 9.602 10.481
* dk=0 mark OK
* cleaned GS, boot, UFB, LFB, window
* Membrane 0.14/0.44
121016 22:38:19 - 121017 00:08:22
* 8_PID_test_clean_v2_001.sch
121014 06:14:52 - 121016 22:37:28
* 9_CMB_36b_dk113_016.sch
( Aborted for thermal test schedule
Telescope:
----------
- Ran Jon's thermal test schedule
- 1 pointing schedule
Weather
--------
- Mostly good, few overcast periods w/ blowing snow
Cryogenics:
-----------
* Tracking spreadsheet at
http://bicep.rc.fas.harvard.edu/bicep2/south_pole_helium_usage/Summer_2011_…
* Kathleen's Cryo Sitrep:
LHe:
• Approximately 3500 liters of useable LHe remain in the Wessington dewars.
• Approximately 250 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: 8 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 tank is at 19.5 MPa (1400 psi), two tanks are at 2.8 MPa
(400 psi), one tanks is at 1.0 MPa (150 psi), and two tanks are at 0 MPa
(0 psi).
• Vent GHe from the LHe transfer was compressed into the storage tanks.
LN2:
• The liquid nitrogen plant off all week
• Approximately 400 liters of LN2 are currently stockpiled on station.
Analysis/software/computers:
----------------------------
- nothing to report
Cheers,
Steffen