NIKA2 run 6 29 October 2016

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2016-10-29

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

0.35

0.24

We check the focus along the Z-direction --> set focus