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|| 161 || 17h01 || 3C279 || cross || 129 || 32 || -10, -5, -0.5 || 0.864 || || || 161 || 17h01 || 3C279 || cross || 129 || 32 || -10, -5, -0.5 || 0.864 || found -7, -12 ; -5 ,-12; at map level -10,-10;-10,-10 ||
|| 162 || 17h04 || 3C279 || pointliss || 129 || 33 || -10, -5, -0.5 || 0.864 || found -10, -8 ; -10, -8||
|| 163 || 17h09 || 3C279 || cross || 129 || 33 || -10, -10, -0.5 || 0.827 || found -10, -10 ; -9, -11; at map level bug@1mm, bug@1mm ; -11, -9||
|| 164 || 17h09 || 3C279 || pointliss|| 129 || 33 || -10, -10, -0.5 || 0.827 || found -11 -10 ; -11 -9 ||
|| 165 || 17h09 || 3C279 || faintliss|| 129 || 33 || -10, -10, -0.5 || 0.827 || found -11 -11 ; -11 -10 Flux 7, 9 Jy||

Describe NK2013_Jun12 here. NIKA November 2012 S2

Back to list of day to day logbook of observations

2013-06-12

  • 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

Opacity is measured with the new taumeter at 225 GHz

For start Nasmyth offsets : 28, 28

Set pointing : 0, 0

Set Focus : -2.40 mm

  • Quick description of the session:
  • Mars Pointing, focus, otfgeom.
  • 4 sources at different elevation to check the nasmyth corrections. If ok, correct pointing model
  • Mars, pointing focus, otfgeom
  • Pointing session for 3h
  • Mars OTFgeom at 3 foci, 5 lissajous focus, 6 lateral positions
  • Secondary calibrators: pointing, otf_3x3, faintsourceLissajous
  • skydip
  • faint sources to finish for noise measurements

Scan

UT

Source

Command

Az

El

Pointing X, Y, Focus

Tau225

Comment

110

9h14

Mars

Track

111

61

0, 0, -2.4

0.824

nasxy=28,28

111

9h25

Mars

cross

114

61

0, 0, -2.4

nasxy=28,28

112

9h28

Mars

cross

115

62

-6, -2, -2.4

nasxy=28,28

113

9h36

Mars

focus Totpow

117

63

-2, -3, -2.4

0.856

quite close to the Sun nasxy=28,28

114

9h45

Mars

focus Totpow

120

65

-2, -3, -2.4

0.863

nasxy=28,28

115

9h50

Mars

otf geom

126

67

-2, -3, -2.4

0.863

nasxy=28,28 (focus could be -1.7 tbc

116

10h02

3C111

cross

80

78

-2, -3, -2.4

nasxy=28,28 (off found -4, -3 ok)

117

10h12

3C454.3

cross

269

27

-2, -3, -2.4

nasxy=28,28 resonances lost (fxd's fault) should do track first do not use

118

10h30

3C454.3

cross

269

27

-2, -3, -2.4

nasxy=28,28 difficult to point

119

10h38

Mars

track

151

73

0, 0, -2.4

0.879

FROM NOW ON: nasxy=0,0 Second Pointing model (nas corrections included 28,28)

120

10h51

Mars

cross

151

73

0, 0, -2.4

0.891

Found at 2mm: -3 -3

121

10h54

Mars

cross

162

74

-3, -3, -2.4

0.891

Found at 2mm: 0 -4 Some 2mm pixels (20) were missing in all previous scans

122

11h04

Mars

cross

169

74

-3, -3, -2.4

-3 -3 are correct

123

11h09

Mars

focus

169

74

-3, -3, -2.4

focus is not clear: try -1.4 and larger range +-2mm

124

11h18

Mars

focusp2

169

74

-3, -3, -1.4

focus at -1 seems ok

125

11h18

Mars

focusp

169

74

-3, -3, -1.

0.9

focus at -1 again (but difficult)

126

11h29

Mars

cross

190

74

-3, -3, -1.

0.98

gives -4, -1

127

11h31

Mars

cross

190

74

-3, -3, -1.

gives -6, 0

128

11h36

Mars

cross

190

74

-5, -1, -1.

gives -5, 0

129

11h44

0420-014

track

192

50

-5, -1, -1.

130

11h46

0420-014

cross

192

51

-5, -1, -1.

gives -7, ?

131

11h50

0420-014

cross

192

51

-5, -1, -1.

gives ? too noisy (bad sky)

132

11h52

0420-014

cross

192

51

-5, -1, -1.

gives too noisy

133

11h55

3C111

track

279

80

-5, -1, -1.

134

12h00

3C111

cross

279

79

-5, -1, -1.

0.906

too noisy. Technical time to replace some spindle electronics 1/2h

135

13h15

Mars

track

247

60

-5, -1, -1.

0.849

resume observations : do focus activities

136

13h24

Mars

cross

250

58

-5, -1, -1.

0.894

found -8,-3; -7,-4

137

13h24

Mars

cross

250

58

-7, +4, -1.

error on +4, found -9, -5 ; -8, -6

138

13h30

Mars

cross

250

57

-7, -4, -1.

found -10, -3 ; -9, -4

139

13h34

Mars

focus

252

57

-9, -4, -1.

found -0.9 ; -0.5

140

13h40

Mars

focus

254

55

-9, -4, -0.7

0.969

found -0.6 ; -0.4

141

13h46

Mars

cross

255

54

-9, -4, -0.5

found -11 -6 ; -10 -7 iffy

142

13h49

Mars

cross

255

53

-10, -7, -0.5

found -9 -4 ; -8 -6

143

13h52

Mars

otfgeom

256

53

-10, -5, -0.5

ok but large fluctuations (some reso lost)

144

14h00

Mars

point lissajous

260

49

-10, -5, -0.5

1 mn testing the procedure and ability to recover pointing

145

14h17

Mars

Faint lissajous

260

49

-10, -5, -0.5

same but 5 min testing the procedure and ability to recover pointing in hard weather

146

14h27

Mars

otfgeom

263

46

-10, -5, -2

focal plane geom. out of focus

147

14h42

Mars

otfgeom

265

44

-10, -5, +1

focal plane geom. out of focus

148-152

14h57

Mars

focusliss

268

40

-10, -5, -0.5

focus determination with 5 lissajous scans foc=-0.5,-1.1,-1.7,0.1,0.7

153

15h26

Mars

otfgeom

268

40

-10, -5, -0.5

cancel

154

15h26

Mars

otfgeom

-10, -5, -0.5

standard (first of a series of 6 with lateral focus changes) after tuning improvements

155

15h46

Mars

otfgeom

-10, -5, -0.5

lateral focus Hori-2mm

156

16h00

Mars

otfgeom

276

28

-10, -5, -0.5

lateral focus Hori+2mm

157

16h16

Mars

otfgeom

278

25

-10, -5, -0.5

0.871

lateral focus Hori 0mm

158

16h25

Mars

otfgeom

280

23

-10, -5, -0.5

lateral focus Vert -2mm

159

16h51

Mars

otfgeom

280

23

-10, -5, -0.5

lateral focus Vert +2mm

160

16h57

3C279

track

128

32

-10, -5, -0.5

(back to normal focus parameters)

161

17h01

3C279

cross

129

32

-10, -5, -0.5

0.864

found -7, -12 ; -5 ,-12; at map level -10,-10;-10,-10

162

17h04

3C279

pointliss

129

33

-10, -5, -0.5

0.864

found -10, -8 ; -10, -8

163

17h09

3C279

cross

129

33

-10, -10, -0.5

0.827

found -10, -10 ; -9, -11; at map level bug@1mm, bug@1mm ; -11, -9

164

17h09

3C279

pointliss

129

33

-10, -10, -0.5

0.827

found -11 -10 ; -11 -9

165

17h09

3C279

faintliss

129

33

-10, -10, -0.5

0.827

found -11 -11 ; -11 -10 Flux 7, 9 Jy

NK2013_Jun12 (last edited 2013-06-13 10:04:17 by NikaBolometer)