Differences between revisions 15 and 17 (spanning 2 versions)
Revision 15 as of 2014-01-25 17:00:11
Size: 4116
Comment:
Revision 17 as of 2014-01-25 17:41:40
Size: 4978
Comment:
Deletions are marked like this. Additions are marked like this.
Line 37: Line 37:
|| 133 || 16h35 || Uranus || otfgeom || -5 3, -1.2 || good file in X33 || || 133 || 16h35 || Uranus || otfgeom || -5 3, -1.2 || ''good file in X33, some "?" in the data control screen of X9 and X10 = some corruptions in the files'' ||
|| 134 || 16h50 || Uranus || cross || -5 3, -1.2 || find pointing -3.2 3.7 ||
|| 135 || 16h50 || Uranus || pointliss || -5 3, -1.2 || find pointing -2.2 4.1 ||
|| 136 || 17h10 || Uranus || focusp || -2.8 3.9, -1.2 || find focus -1.07 @ 1mm, -1.08 @ 2mm ||
|| 137-141 || 17h20 || Uranus || focusliss || -2.8 3.9, -1.2 || '''not usable'''. ''we have found the corruption problem: '''do not transfert files from X9 and X10 for local analysis during a scan''''' ||
|| 142-146 || 17h30 || Uranus || focusliss || -2.8 3.9, -1.2 || find focus -0.3 @ 1mm, -0.4 @ 2mm => 1mm shift on M2 is prety big (Zemax shows huge effect on beam); is it due to sunset ? ||

NIKA, January 25th, 2014 / S6

Back to list of day to day logbook of observations

2014-01-25

  • TAPAS database, will be completed on Monday. Continue with manual log below.

Programm for today. View the poor weather conditions that prevented us to follow the program listed in the observation plan, we (SL) reorganise it. We will do continuum observations only (without the polariser).

  • Skydip.
  • Focus and Beam maps on Uranus. Centered on the refence detector: #494 of the 2mm array (#5 of the 1mm array is very close to it).
  • If the weather allows, resume pointing session.
  • If the weather allows, beam maps on Uranus: on focus 1st then investigation of 3D focus (=> 18 scans).

  • If weather not excellent but good enough for observations: quick test for the TAPAS data base, change project from t21 to 193-13 (Israel's project for the pool in Feb) do a Lissajou scan on any bright source nearby and check that the scan appears in the right table of the pool database. Then back to project t21.
  • If weather not excellent but good enough for observations: photometric calibration on primary and secondary calibrators with Lissajous scans and small OTF maps (Az El and/or few RA DEC for testing). Some secondary to observe: W3OH, K3-50A, MWC349, CRL2688, NGC7027, CepA, NGC7538.
  • If weather not excellent but good enough for observations: check geom on CygA (and possibly M82 again).
  • If weather not excellent but good enough for observations: test various scan speed 10, 20, 30, 40, 50, 60 arcsec/s, first on bright quasar with geom (e.g. 3C454.3, 3C84, OJ287, 3C111), then on extended sources with large OTF zigzag (e.g. CygA, CasA, Crab, possibly M82 again).
  • If weather not excellent but good enough for observations: test various OTF Zig Zag orientations; in particular Ra Dec scan on NGC891.

Note: view the numerous polar obs done yesterday in rather good weather conditions, no polar observations foreseen today. Wait for Feedback from NIKA team in Grenoble for possible plan of additional polar obs tomorrow or day after tomorrow.

Remark for NIKA staff: Good data are on RAW_X9

OFFSET -37 -30 /sys Nasmyth => select detector 494 as reference

Scan

UT

Source

Command

Pointing X,Y, Focus

Comment

118-119

15h30

DIY-Tip

skydip_updown

0 0, -1.4

OFFSET -37 -30 /sys Nasmyth. error in scan 118: "-1 blocs manquants". pipeline can't fit skydip down (scan 119)

120

15h45

DIY-Tip

skydip_up

0 0, -1.4

find tau 0.44 @ 1mm ~ tau meter, 0.36 @ 2mm

121

15h55

Uranus

cross

0 0, -1.4

find pointing -55 -35 ! Normal: typo in Nasmyth offsets: -37 30 => OFFSET -37 -30 /sys Nasmyth

122

16h00

Uranus

cross

0 0, -1.4

find pointing -2.3 -1.6 => OK now these values are in the expected range.

123

16h06

Uranus

pointliss

-2.3 -1.6, -1.4

find pointing -5 -1.1 (accumulate stat for comparison between both method)

124

16h10

Uranus

focusp

-5 -1.1, -1.4

find focus -1.42 @ 1mm, -0.97 @ 2mm. Very noisy; turbulent blue sky, wind.

125-129

16h16

Uranus

focusliss

-5 -1.1, -1.4

find focus -1.23 @ 1mm, -0.56 @ 2mm (accumulate stat for comparison between both method)

130

16h25

Uranus

cross

-5 -1.1, -1.2

find pointing -4.6 2.1

131

16h30

Uranus

pointliss

-5 -1.1, -1.2

find pointing -5.5 3.2. Alain update RAW_X10 to test fix of file timing problem encountered yesterday.

132

16h35

Uranus

otfgeom

-5 3, -1.2

133

16h35

Uranus

otfgeom

-5 3, -1.2

good file in X33, some "?" in the data control screen of X9 and X10 = some corruptions in the files

134

16h50

Uranus

cross

-5 3, -1.2

find pointing -3.2 3.7

135

16h50

Uranus

pointliss

-5 3, -1.2

find pointing -2.2 4.1

136

17h10

Uranus

focusp

-2.8 3.9, -1.2

find focus -1.07 @ 1mm, -1.08 @ 2mm

137-141

17h20

Uranus

focusliss

-2.8 3.9, -1.2

not usable. we have found the corruption problem: do not transfert files from X9 and X10 for local analysis during a scan

142-146

17h30

Uranus

focusliss

-2.8 3.9, -1.2

find focus -0.3 @ 1mm, -0.4 @ 2mm => 1mm shift on M2 is prety big (Zemax shows huge effect on beam); is it due to sunset ?

NK2014_Jan25 (last edited 2014-01-26 00:56:30 by NikaBolometer)