Differences between revisions 9 and 10
Revision 9 as of 2016-10-29 20:37:57
Size: 11629
Comment:
Revision 10 as of 2016-10-29 20:44:56
Size: 11992
Comment:
Deletions are marked like this. Additions are marked like this.
Line 63: Line 63:
|| 261 || 20h40 || MWC349 || track || 288.24 || 60.87 ||1.0 1.1 -0.56 0.86 -0.26|| 0.20 || || || Going on MWC349 before the map ||
|| 262-263 || 20h41 || MWC349 || nkotf_square 5 || 288.32 || 60.57 || 1.0 1.1 -0.56 0.86 -0.26|| 0.20 || || || We now do 2 OTF scans in RaDec to map the source ||

NIKA2 run 6 29 October 2016

Back to list of day to day logbook of observations

2016-10-29

  • Quick description of the session: Beammaps then secondary calibrator

We regulate at 205 mK and we are at 30% on the pump to be on the safe side. We solve the issue with the noise on the 2 mm array which was due to a misbehavior of the synthesizer: Martino told us to restart it and now the noise looks very good. Juan Penalver has provided a new pointing model.

Observers: Juan + Florian -- Operator: Quique

Scan

UT

Source

Command

Az

El

Pointing X, Y, Focus

Tau225

Tau260

Tau150

Comment

167

15h50

Mars

Track

158.19

26.31

0 0 0.00 -0.36 -0.45

0.34

We start a new session (Juan, Florian, operator: Quique). We decide to start by going on Mars for a large map on the sky to get enough flux to sample the far side lobes

168

15h58

Mars

Track -200 -200

159.61

26.72

0 0 0.00 -0.36 -0.45

0.34

Another track to tune the detectors

169

16h00

Mars

Track -200 -200

160.15

26.81

0 0 0.00 -0.36 -0.45

0.34

Another track to tune the detectors

170

16h12

Mars

Track -200 -200

163.14

27.56

0 0 0.00 -0.36 -0.45

0.34

Another track to tune the detectors

171

16h13

1921-293

Track -200 -200

167.63

22.69

0 0 0.00 -0.36 -0.45

0.28

Another track to tune the detectors

172

16h14

1921-293

pointing b

167.85

22.74

0 0 0.00 -0.36 -0.45

0.28

We do a pointing a another source than Mars to avoid saturation of the detectors --> To faint for a good pointing --> We go on Neptune

173

16h18

Neptune

Track -200 -200

115.25

16.85

0 0 0.00 -0.36 -0.45

0.28

174

16h21

Neptune

pointing b

115.43

17.08

0 0 0.00 -0.36 -0.45

0.33

0.39

0.24

The pointing is really bad... tau is low but fluctuating a lot --> set pointing 3.6 -7.7

175

16h24

Neptune

pointing b

115.99

17.64

3.60 -7.70 0.00 -0.36 -0.45

0.33

0.39

0.24

The pointing is really bad... tau is low but fluctuating a lot --> we go at higher elevation

176

16h28

G34.3

Track -200 -200

178.39

54.10

3.60 -7.70 -0.36 -0.45

0.36

This source is much higher so the pointing should be good

177

16h30

G34.3

pointing b

178.80

54.12

3.60 -7.70 0.00 -0.36 -0.45

0.29

0.39

0.24

Now the pointing is ok --> set pointing 1.90 -5.60

178

16h33

G34.3

pointing b

180.06

54.13

1.90 -5.60 0.00 -0.36 -0.45

0.25

0.39

0.24

Check the pointing --> set pointing 4.10 -4.80

179 - 183

16h36

G34.3

focusOTF-Z

181.40

54.15

4.10 -4.80 0.00 -0.36 -0.45

0.30

0.35

0.24

Now we do a focus along the Z-direction --> set focus 0.5 (weird it seems that the flux keeps increasing --> we do the focus again)

184 - 188

16h46

G34.3

focusOTF-Z

185.49

54.02

4.10 -4.80 0.00 -0.36 0.5

0.42

0.30

0.21

We check the focus along the Z-direction --> set focus 0.61 (now we have good results, with a parabolic variation of the flux but it is still weird that the focus correction is positive)

189

16h55

G34.3

pointing b

189.19

53.76

4.10 -4.80 0.00 -0.36 0.61

0.36

Check the pointing --> set pointing -0.4 -3.3

190

17h04

Neptune

Track -200 -200

123.81

24.70

-0.4 -3.3 0.00 -0.36 0.61

0.28

Now that the pointing and the focus is quite good, we go on Neptune which is high enough to start the beammap sequence (poiniting/focus_X_Y_Z/beammap)

191

17h06

Neptune

pointing b

123.97

24.86

-0.4 -3.3 0.00 -0.36 0.61

0.28

0.27

0.18

First a pointing --> set pointing -1.1 -3.9

192 - 196

17h09

Neptune

focusOTF-Z

124.73

25.46

-1.10 -3.90 0.00 0.00 0.61

0.34

Focus along the Z-direction --> set focus 0.21

197 - 201

17h17

Neptune

focusOTF-Z 0.61

126.26

26.66

-1.10 -3.90 0.00 0.00 0.21

0.36

Check the focus along the Z-direction --> set focus 0.09

202 - 206

17h25

Neptune

focusOTF-X 0

127.91

27.96

-1.10 -3.90 0.00 0.00 0.09 0.09

0.35

0.24

0.17

Focus along the X-direction --> set focus -0.5 /dir X

207 - 211

17h34

Neptune

focusOTF-X -0.5

129.86

29.33

-1.10 -3.90 -0.50 0.00 0.09

0.24

0.23

0.17

Check the focus along the X-direction --> set focus -0.56 /dir X

212 - 216

17h25

Neptune

focusOTF-Y 0

131.77

30.59

-1.10 -3.90 -0.56 0.00 0.09

0.77

0.24

0.17

Focus along the Y-direction --> set focus 1.04 /dir Y

217 - 221

17h50

Neptune

focusOTF-Y 1.04

133.66

31.72

-1.10 -3.90 -0.56 1.04 0.09

0.30

0.23

0.17

Check the focus along the Y-direction --> set focus 0.86 /dir Y

222 - 226

17h57

Neptune

focusOTF-Z 0.09

135.53

32.81

-1.10 -3.90 -0.56 0.86 0.09

0.29

0.25

0.18

Check the focus along the Z-direction --> set focus -0.06

227

18h07

Neptune

pointing b

137.81

34.06

-1.10 -3.90 -0.56 0.86 -0.06

0.37

Check the pointing before the beammap --> we do not believe the profiles so we do the pointing again

228

18h11

Neptune

pointing b

138.80

34.58

-1.10 -3.90 -0.56 0.86 -0.06

0.24

0.25

0.18

Check the pointing before the beammap --> set pointing -2.00 -2.70

229

18h16

Neptune

beammap1scan99sub

140.71

35.45

-2.00 -2.70 -0.56 0.86 -0.06

0.27

First beammap of the session (in azimuth)

230

18h39

Neptune

beammap1scan99sub

152.49

40.21

-2.00 -2.70 -0.56 0.86 -0.06

0.29

Beammap in elevation

231

19h01

Neptune

Skydip

152.17

27.78

-2.00 -2.70 -0.56 0.86 -0.06

0.23

First skydip of the session

232

19h11

NGC7538

track

382.72

61.43

-2.00 -2.70 -0.56 0.86 -0.06

0.19

We now want to observe secondary calibrators so we start by tracking NGC7538

233

19h20

NGC7538

pointing b

382.37

61.47

-2.00 -2.70 -0.56 0.86 -0.06

0.23

0.19

0.15

Pointing --> set pointing -0.3 -2.9

234-235

19h23

NGC7538

nkotf_square 5

381.95

61.73

-0.30 -2.90 -0.56 0.86 -0.06

0.23

We now do 2 OTF scans in RaDec to map the source

236

19h29

CepA

pointing b

376.29

62.81

-0.30 -2.90 -0.56 0.86 -0.06

0.24

Pointing --> set pointing 3.9 1.6

237-238

19h31

CepA

nkotf_square 5

375.88

63.01

3.90 1.60 -0.56 0.86 -0.06

0.18

We now do 2 OTF scans in RaDec to map the source

239

19h36

CepA

pointing b

374.55

63.23

3.90 1.60 -0.56 0.86 -0.06

0.23

Wrong source for the pointing --> going on another one

240

19h38

0133+476

pointing b

416.00

49.45

3.90 1.60 -0.56 0.86 -0.06

0.23

0.16

0.13

Pointing --> set pointing -2.5 -2.3

241

19h43

LKH234

pointing b

354.19

60.54

-2.50 -2.30 -0.56 0.86 -0.06

0.23

Pointing --> set pointing 1.5 -1.5

242-243

19h48

LKH234

nkotf_square 5

375.88

63.01

1.50 -1.50 -0.56 0.86 -0.06

0.18

We now do 2 OTF scans in RaDec to map the source

244

19h55

DR21OH

track

292.80

70.12

1.50 -1.50 -0.56 0.86 -0.06

0.20

Going on DR21OH before the pointing

245

19h58

DR21OH

pointing b

375.88

63.01

1.50 -1.50 -0.56 0.86 -0.06

0.20

0.16

0.13

Pointing --> set pointing -0.3 -2.9

246-247

20h02

DR21OH

nkotf_square 8

292.52

69.47

-0.3 -2.9 -0.56 0.86 -0.06

0.18

We now do 2 OTF scans in RaDec to map the source

248

20h12

NGC7027

track

293.47

72.41

-0.3 -2.9 -0.56 0.86 -0.06

0.20

Going on NGC7027 before the pointing

249

20h14

NGC7027

pointing b

293.53

72.16

-0.3 -2.9 -0.56 0.86 -0.06

0.20

Pointing --> set pointing 3.0 4.6

250-254

20h16

NGC7027

focusOTF-Z -0.06

293.31

71.54

3.00 3.0 4.6 -0.56 0.86 -0.06

0.20

0.17

0.13

Check the focus along the Z-direction --> set focus -0.26

255-256

20h25

NGC7027

nkotf_square 5

292.67

70.10

3.00 4.60 -0.56 0.86 -0.26

0.35

We now do 2 OTF scans in RaDec to map the source

257

20h32

CRL2688

track

276.99

67.84

3.00 4.60 -0.56 0.86 -0.26

0.20

Going on CRL2688 before the pointing

258

20h32

CRL2688

pointing b

277.22

67.63

3.00 4.60 -0.56 0.86 -0.26

0.19

0.15

0.12

Pointing --> set pointing 1.0 1.1

259-260

20h33

CRL2688

nkotf_square 5

277.3

67.24

1.0 1.1 -0.56 0.86 -0.26

0.27

We now do 2 OTF scans in RaDec to map the source

261

20h40

MWC349

track

288.24

60.87

1.0 1.1 -0.56 0.86 -0.26

0.20

Going on MWC349 before the map

262-263

20h41

MWC349

nkotf_square 5

288.32

60.57

1.0 1.1 -0.56 0.86 -0.26

0.20

We now do 2 OTF scans in RaDec to map the source

NK2run6_20161029 (last edited 2016-10-30 06:55:19 by NikaBolometer)