20m Telescope - SIS 4-mm Receiver Monitoring
A black number indicates a normal value.A red number indicates a too high or a too low value.
A blue number indicates a value that has not been updated during the last 5 minutes.
A magenta number indicates a BAD value that has not been updated during the last 5 minutes.
You can click on any slot to get to a page showing graphs for that slot.
Daily log-files with the raw ASCII-data can be found here.
SLOT 2026-01-12 00:07:00 UTC
301 Commanded backshort position 65.19
302 Actual backshort position 64.94
303 Commanded tuning position 272.46
304 Actual tuning position 271.97
305 Commanded pol-A attenuator position 30.03
306 Actual pol-A attenuator position 29.79
307 Commanded pol-B attenuator position 30.03
308 Actual pol-B attenuator position 30.03
309 Gunn bias voltage 0.07 V
310 Gunn error voltage 0.93 V
311 Gunn AGC voltage 0.04 V
401 Gunn bias status off
402 Commanded Gunn phase lock loop open
403 Actual Gunn phase lock status yes
501 SIS cryo status OK yes
601 KOS switch mirror mode left
602 KOS left mirror position sky
603 KOS right mirror position sky
701 3-mm ambient load temperature 73.93 C
702 4-mm ambient load temperature 73.08 C
703 KOS switch motor temperature 19.40 C
Last modified: 12 January 2026
Responsible for this page: Mikael Lerner