Diff for "D2DLogNika7" - www.iram.es Main Wiki

Differences between revisions 20 and 22 (spanning 2 versions)

Day to day observation logbook

Nika 2014-01-20 sheet1	link to summary table with plots	2 hours observed / 2 hours scheduled
Nika 2014-01-21 sheet2	link to summary table with plots	~5.5 h obs / 6.5 h schedul, but mostly poor weather
Nika 2014-01-22 sheet3 see also TAPAS & Pool database	link to summary table with plots	<8h h obs / 12 h schedul, stopped due to bad weather
Nika 2014-01-23 sheet4 see also TAPAS & Pool database	link to summary table with plots	4h h obs / 9 h schedul, stopped due to bad weather
Nika 2014-01-24 sheet5, TAPAS & Pool may miss some crosses and otf; to be checked	link to summary table with plots	~8h h obs / 9 h schedul, but 2nd half very windy
Nika 2014-01-25 sheet6 the TAPAS & Pool may miss some crosses and otf; to be checked	link to summary table with plots	4h h obs / 9 h schedul, stopped due to wind, 1st half very windy
Nika 2014-01-26 sheet7 the TAPAS & Pool may miss some crosses and otf; to be checked	link to summary table with plots	9h h obs / 9 h schedul, best obs conditions of the week
Nika 2014-01-27 sheet8 the TAPAS & Pool may miss some crosses and otf; to be checked	link to summary table with plots	8h h obs / 8 h schedul, good with some wind around sunset

Quick summary of observations per day

Mon, Jan 20

First light. Check detector noise. Test main scripts to be used: track, cross, pointliss, focusp, focusliss, otfgeom, skydip_up, skydip_updown.
Radio alignment by background minimization.
No antenna data for the entire session.

Tue, Jan 21

Investigation on the Nasmyth offsets: understand how the telescope Nasmyth reference coordinates are projected on the array.
Investigation on the alignment: RADIO ALIGNMENT BY BACKGROUND MINIMIZATION DOESN'T WORK; using the laser alignment give stronger signals; the background minimization is probably due to vignetting of the pupil by the sky next to M2 (not the background behind M1!).
Statistics on pointing corrections, pointing at a source for 1 hour. test script otf10x10.
3 beam maps (otfgeom script) on Uranus. 2 beam maps on 3C84.

Wed, Jan 22

Iterations on focus scans to check focus variability.
Additional tests on Nasmyth offsets.
Use bad weather condition to test acquisition procedures and data with polarizer components: 1st modulator on, no half-wave plate, then with HWP immobile, then rotating. Try optimization of polarizer angle. Test scripts otf5x5, otf5x5_pol, otf5x5_half.
Last test with Nasmyth offset, choose 'reference detector: 494 on the 2mm array (detector 5 on the 1mm array points ~2" away).
Secondary calibrator: W3OH.
1 beam map on Uranus, 1 beam maps on 3C84, 1 beam map on W3OH.

Thu, Jan 23

3 beam maps on Uranus.
Try pointing session... stopped half way through due to wind.

Fri, Jan 24

Polarized observations: Uranus (including 3 beam maps), 3C454.3, 2013+270, MWC349, 3C84, 3C111. Test scripts pointliss_pol, otfgeom_pol.
Try pointing session... stopped due to bad weather. 2 beam maps on 3C84.
~30 min on M82 (check for the supernova).
~20 min on GN20 (for noise analysis).

Sat, Jan 25

2 beam maps on Uranus

-  ⇤ ← Revision 20 as of 2014-01-27 20:23:06 → 
  Size: 1909
  Editor: NikaBolometer
  Comment:
+   ← Revision 22 as of 2014-01-31 17:01:14 → ⇥
  Size: 4023
  Editor: NikaBolometer
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-|| [[NK2014_Jan24|Nika 2014-01-24 sheet5]], [[https://tapas.iram.es/tapas/ | TAPAS]] & [[https://pools.iram.es | Pool]] updated with missing crosses and otf on Jan 27|| [[ Plots_Jan24_2014 | link to summary table with plots ]]|| ~8h h obs / 9 h schedul, but 2nd half very windy ||
|| [[NK2014_Jan25|Nika 2014-01-25 sheet6]] the [[https://tapas.iram.es/tapas/ | TAPAS]] & [[https://pools.iram.es | Pool]] updated with missing crosses and otf on Jan 27|| link to summary table with [[PlotsNika2014Jan25|plots]] || 4h h obs / 9 h schedul, stopped due to wind, 1st half very windy||
|| [[NK2014_Jan26|Nika 2014-01-26 sheet7]] the [[https://tapas.iram.es/tapas/ | TAPAS]] & [[https://pools.iram.es | Pool]] updated with missing crosses and otf on Jan 27|| link to summary table with plots || 9h h obs / 9 h schedul, best obs conditions of the week||
|| [[NK2014_Jan27|Nika 2014-01-27 sheet8]] the [[https://tapas.iram.es/tapas/ | TAPAS]] & [[https://pools.iram.es | Pool]] updated with missing crosses and otf on Jan 28 ?|| link to summary table with plots ||
+|| [[NK2014_Jan24|Nika 2014-01-24 sheet5]], [[https://tapas.iram.es/tapas/ | TAPAS]] & [[https://pools.iram.es | Pool]] may miss some crosses and otf; to be checked || [[ Plots_Jan24_2014 | link to summary table with plots ]]|| ~8h h obs / 9 h schedul, but 2nd half very windy ||
|| [[NK2014_Jan25|Nika 2014-01-25 sheet6]] the [[https://tapas.iram.es/tapas/ | TAPAS]] & [[https://pools.iram.es | Pool]] may miss some crosses and otf; to be checked || link to summary table with [[PlotsNika2014Jan25|plots]] || 4h h obs / 9 h schedul, stopped due to wind, 1st half very windy||
|| [[NK2014_Jan26|Nika 2014-01-26 sheet7]] the [[https://tapas.iram.es/tapas/ | TAPAS]] & [[https://pools.iram.es | Pool]] may miss some crosses and otf; to be checked || link to summary table with plots || 9h h obs / 9 h schedul, best obs conditions of the week||
|| [[NK2014_Jan27|Nika 2014-01-27 sheet8]] the [[https://tapas.iram.es/tapas/ | TAPAS]] & [[https://pools.iram.es | Pool]] may miss some crosses and otf; to be checked || link to summary table with plots || 8h h obs / 8 h schedul, good with some wind around sunset||

== Quick summary of observations per day ==

==== Mon, Jan 20 ====
 *First light. Check detector noise. Test main scripts to be used: ''track, cross, pointliss, focusp, focusliss, otfgeom, skydip_up, skydip_updown''.
 *Radio alignment by background minimization. 
 *No antenna data for the entire session.

==== Tue, Jan 21 ====
 *Investigation on the Nasmyth offsets: understand how the telescope Nasmyth reference coordinates are projected on the array.
 *Investigation on the alignment: RADIO ALIGNMENT BY BACKGROUND MINIMIZATION DOESN'T WORK; using the laser alignment give stronger signals; the background minimization is probably due to vignetting of the pupil by the sky next to M2 (not the background behind M1!).
 *Statistics on pointing corrections, pointing at a source for 1 hour. test script ''otf10x10''. 
 *3 beam maps (otfgeom script) on Uranus. 2 beam maps on 3C84.

==== Wed, Jan 22 ====
 *Iterations on focus scans to check focus variability. 
 *Additional tests on Nasmyth offsets.
 *Use bad weather condition to test acquisition procedures and data with polarizer components: 1st modulator on, no half-wave plate, then with HWP immobile, then rotating. Try optimization of polarizer angle. Test scripts ''otf5x5, otf5x5_pol, otf5x5_half''.
 *Last test with Nasmyth offset, choose ''''reference detector: 494 on the 2mm array (detector 5 on the 1mm array points ~2" away).'''
 *Secondary calibrator: W3OH.
 *1 beam map on Uranus, 1 beam maps on 3C84, 1 beam map on W3OH.

==== Thu, Jan 23 ====
 *3 beam maps on Uranus.
 *Try pointing session... stopped half way through due to wind.

==== Fri, Jan 24 ====
 *Polarized observations: Uranus (including 3 beam maps), 3C454.3, 2013+270, MWC349, 3C84, 3C111. Test scripts ''pointliss_pol, otfgeom_pol''.
 *Try pointing session... stopped due to bad weather. 2 beam maps on 3C84.
 *~30 min on M82 (check for the supernova).
 *~20 min on GN20 (for noise analysis).

==== Sat, Jan 25 ====
 *2 beam maps on Uranus

==== Sun, Jan 26 ====

==== Mon, Jan 27 ====