Differences between revisions 7 and 12 (spanning 5 versions)

Daily Reports

Contents

Bilal, Charlene, Caroline, Iacopo, Florian, Stefano, Carsten arrive at the 30m. Full house.

Jan 14, Tuesday

Laser used to check alignment between elevation axis and cryostat window. Strangely enough this seems to depend slightly on elevation. Small correction applied to M5 by SN.
Starting at 14:30 UT. High overcast of ice clouds.
Pointing session with ~33 sources. Pointing offsets look OK. JP fits model. Fit of Nasmyth offsets leads to a very slight improvement from 1.9" rms to 1.7" rms. Not yet implemented. Beam widths look OK.
Secondary calibrators MWC349, NGC7027, CRL2688. Fluxes look OK.
Skydip
Beam map on Uranus at 50deg Elevation.
Central pixel lost. Hole in the 2mm array. Re-do tuning. Re-do pointing, focus, 2 beam maps to create new kidpars after 1mm sweep done last week.
tau225~0.14 and very stable. Forecast ist good for the next two days. Ready to go. It would be helpful to have beam maps IMBfits be created separately from pointing and focus scans.
18:10 Finally, after 3.5 hours, starting with science: LPSZ. New pointing model implemented in-between scans.

-  ⇤ ← Revision 7 as of 2020-01-14 19:06:31 → 
  Size: 1122
  Editor: CarstenKramer
  Comment:
+   ← Revision 12 as of 2020-01-14 19:13:28 → ⇥
  Size: 1240
  Editor: CarstenKramer
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 13:
- * Pointing session with 33 sources. Pointing offsets look OK. JP fits model. Fit of Nasmyth offsets leads to a very slight improvement from 1.9" rms to 1.7" rms. Not yet implemented. Beam widths look OK.
 * Calibrators MWC349, NGC7027, CRL2688. Fluxes look OK.
+ * Pointing session with ~33 sources. Pointing offsets look OK. JP fits model. Fit of Nasmyth offsets leads to a very slight improvement from 1.9" rms to 1.7" rms. Not yet implemented. Beam widths look OK.
 * Secondary calibrators MWC349, NGC7027, CRL2688. Fluxes look OK.
 Line 18:
- * tau225~0.1. Ready to go. It would be helpful to have beam maps IMBfits be created separately from pointing and focus scans.
 * 18:10 Finally, after 3.5 hours, starting with science: LPSZ.
+ * tau225~0.14 and very stable. Forecast ist good for the next two days. Ready to go. It would be helpful to have beam maps IMBfits be created separately from pointing and focus scans.
 * 18:10 Finally, after 3.5 hours, starting with science: LPSZ. New pointing model implemented in-between scans.