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.Cryostat Temperature: 216mK (naturally set by settings of 3He circulation [no heater] trying to mitigate oscillation due to leak). .Arrays status tonight: pixels 2mm - xxx noise; XX pixels 1mm xxx noise (to be determined) Modulation frequency: 8kHz 1mm, 4kHz 2mm |
[[NikaRun7|Back to the NIKA run 7]] November 11th 2013, Alain Benoit, Martino Calvo and Andrea Catalano come to the 30m to install, cool down and testing the NIKA prototype. ______________________________________ |
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Opacity is measurd with the new taumeter at 225 GHz | '''12-13 November 2013''': cooling down, HWP Modulator installation at the pupil (120mm from the cryostat lens) |
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Nasmyth offsets : 0, 0 | '''14 November 2013''': OTF geometries on Mars and Uranus. First light of NIKA prototype with polarisation facilities. |
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Set pointing : 0, 0 | '''15 November 2013''': Cryostat back to 300K: 3He-4He mix recovery, heating trap. Polarisation facilities dismantling. Back to Granada. |
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Set Focus : -2.40 mm | |
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.Quick description of the session: Test the Pako sequences and data flows. | '''Cryostat Temperature''': 150mK (set by temperature control). '''Arrays status''': 128 pixels 2mm - <1Hz/sqrtHz noise; 201 pixels 1mm about 10Hz/sqrtHz noise '''Modulation frequency''': 8kHz 1mm, 4kHz 2mm '''OBSERVATIONS Log''' Opacity is measurd with the taumeter at 225 GHz p2cor : 0 p7cor : 0 initial Focus : -2.40 mm |
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|| 140 || ~ 16h || Mars || Track || || || || || closed window, test data tranfert || || 141 || 16h05 || Mars || Cross ||277.687 || 26.626 || 0.0 0.0 -2.4 || 0.862 || opened window, test arrays frequencies || |
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November 11th 2013, Alain Benoit, Martino Calvo and Andrea Catalano come to the 30m to install, cool down and testing the NIKA prototype. 12-13 November 2013: cooling down, HWP Modulator installation at the pupil (120mm from the cryostat lens) 14 November 2013: OTF geometries on Mars and Uranus. First light of NIKA prototype with polarisation facilities. 15 November 2013: Cryostat back to 300K: 3He-4He mix recovery, heating trap. Polarisation facilities dismantling. Back to Granada. Cryostat Temperature: 150mK (set by temperature control). Arrays status: 128 pixels 2mm - <1Hz/sqrtHz noise; 201 pixels 1mm about 10Hz/sqrtHz noise Modulation frequency: 8kHz 1mm, 4kHz 2mm OBSERVATIONS Log Opacity is measurd with the taumeter at 225 GHz p2cor : 0 p7cor : 0 initial Focus : -2.40 mm Scan UT Source Command Az El Pointing X, Y, Focus Tau225 Comment