NIKA, January 27th, 2014 / S8

Back to list of day to day logbook of observations

2014-01-27

Programm for today. Yesterday we did a nice session with the polariser, and did a full pointing session that should allow to give us a pointing model for NIKA valid for the next runs. It's the last night, we will not be able to recover all the time lost due to weather conditions the previous days. We need to choose priorities from the program. I (SL) propose the following:

Real program: see below; it's a compromise between program above & propositions from video meeting with NIKA team @ Grenoble, AND, adaptation to weather conditions.

Remark for NIKA staff: Good data are on RAW_X10

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

Scan

UT

Source

Command

Pointing X,Y, Focus

Comment

184

15h07

Uranus

track

0 0, -0.8

OFFSET -37 -30 /sys Nasmyth.

185

15h12

Uranus

cross

0 0, -0.8

pointing -3.7 -0.1

186

15h15

Uranus

focusp

-3.7 -0.1, -0.8

focus -1.4 @ 1mm, -1.05 @ 2mm, we put -1.3

187

15h20

Uranus

cross

-3.7 -0.1, -1.3

say pointing -2.5 -4.1

188

15h23

Uranus

otfgeom

-2.5 -4.1, -1.3

quicklook process => distribution of FWHM pretty wide => wind probably already too strong for a reliable otfgeometry 3D focus

189

15h42

Uranus

pointliss

-2.5 -4.1, -1.3

say pointing -6.1 -1.8 => indeed moving... wind.

190-194

15h45

Uranus

focusliss

-2.5 -4.1, -1.3

say focus -1.3 @ 1mm (0.9 @ 2mm) 3D focus => focusliss: 5 scans = -1.3 -1.9 -2.5 -0.7 -0.1

195

15h55

Uranus

cross

-2.5 -4.1, -1.3

say pointing -4.9 -3.3 (Sky not good for otfgeom 3D focus => try with shortest scans)

196

15h58

Uranus

cross

-4.9 -3.3, -2

say pointing -4.9 -2.1 (3 positions on each axis of the secondary mirror; 5 positions is too much)

197

16h00

Uranus

cross

-4.9 -3.3, -0.6

say pointing -6.7 -0.7

198

16h00

Uranus

pointliss

-6.7 -0.7, -1.3

say pointing -5.1 -1.5 X lateral focus +4mm (vertical)

199

16h05

Uranus

cross

-6.7 -0.7, -1.3

say pointing -4.4 -0.9

200

16h08

Uranus

pointliss

-6.7 -0.7, -1.3

say pointing -4.4 0.2

201

16h10

Uranus

cross

-6.7 -0.7, -1.3

say pointing -3.2 -2.9 X lateral was back to 0

202

16h13

Uranus

cross

-6.7 -0.7, -1.3

say pointing -3.8 -0.2 X lateral focus +4mm (vertical)

203

16h15

Uranus

pointliss

-6.7 -0.7, -1.3

say pointing -4.9 -1.2

204

16h20

Uranus

cross

-6.7 -0.7, -1.3

say pointing -5.1 -1.1 X lateral focus -4mm (vertical)

205

16h22

Uranus

pointliss

-5.1 -1.1, -1.3

say pointing -8.3 0.2

206

16h24

Uranus

cross

-5.1 -1.1, -1.3

say pointing -5.5 0.2

207

16h26

Uranus

pointliss

-5.5 0.2, -1.3

say pointing -5.3 -0.2

208

16h28

Uranus

cross

-5.5 0.2, -1.3

say pointing -6.8 -1.4 Y lateral focus +4mm (horizontal)

209

16h30

Uranus

pointlisss

-6.8 -1.4, -1.3

say pointing -6.9 -2.1

210

16h32

Uranus

cross

-6.8 -1.4, -1.3

say pointing -8.2 -1.6

211

16h35

Uranus

pointlisss

-8.2 -1.6, -1.3

say pointing -8.4 -1.4

212

16h38

Uranus

cross

-8.2 -1.6, -1.3

say pointing -3.8 -2.2 Y lateral focus -4mm (horizontal)

213

16h35

Uranus

pointlisss

-3.8 -2.2, -1.3

say pointing -4.9 -1.3

214

16h38

Uranus

cross

-3.8 -2.2, -1.3

say pointing -4.7 -1.1

215

16h44

Uranus

pointlisss

-4.7 -1.1, -1.3

say pointing -5.4 -1.9

216

16h55

Uranus

cross

-4.7 -1.1, -2

say pointing -7.5 -4.0 Y lateral focus -4mm (horizontal)

217

16h58

Uranus

pointlisss

-4.7 -1.1, -2

say pointing -7.7 -4.3

218

17h00

Uranus

cross

-4.7 -1.1, -2

say pointing -6.6 -1.9

219

17h

Uranus

pointlisss

-4.7 -1.1, -2

say pointing -7.7 -3.6

220

17h

Uranus

cross

-4.7 -1.1, -0.6

say pointing -6.0 -1.0

221

17h

Uranus

pointlisss

-4.7 -1.1, -0.6

say pointing -6.5 -1.8

222

17h

Uranus

cross

-4.7 -1.1, -0.6

say pointing -6.3 -3.1

223

17h

Uranus

pointlisss

-4.7 -1.1, -0.6

say pointing -7.2 -2.4

224

17h

Uranus

cross

-4.7 -1.1, -2

say pointing -9.1 -3.1 Y lateral focus +4mm (horizontal)

225

17h

Uranus

pointlisss

-4.7 -1.1, -2

say pointing -9.1 -2.0

226

17h

Uranus

cross

-4.7 -1.1, -2

say pointing -8.3 -2.2

227

17h

Uranus

pointlisss

-4.7 -1.1, -2

say pointing -7.7 -4.1

228

17h

Uranus

cross

-4.7 -1.1, -0.6

say pointing -8.5 -1.2

229

17h

Uranus

pointlisss

-4.7 -1.1, -0.6

say pointing -9.1 -2.2

230

17h

Uranus

cross

-4.7 -1.1, -0.6

say pointing -10.5 -0.4

231

17h

Uranus

pointlisss

-4.7 -1.1, -0.6

say pointing -10.8 -0.1

232

17h

Uranus

cross

-4.7 -1.1, -2

say pointing -6.9 -1.3 X lateral focus -4mm (vertical)

233

17h

Uranus

pointlisss

-4.7 -1.1, -2

say pointing -7.8 -2.5

234

17h

Uranus

cross

-4.7 -1.1, -2

say pointing -6.7 -1.9

235

17h

Uranus

pointlisss

-4.7 -1.1, -2

say pointing -6.6 -2.4

236

17h

Uranus

cross

-4.7 -1.1 -0.6

say pointing -9.1 0.1

237

17h

Uranus

pointlisss

-4.7 -1.1, -0.6

say pointing -10.1 -0.3

238

17h

Uranus

cross

-4.7 -1.1, -0.6

say pointing -9.8 1.9

239

17h

Uranus

pointlisss

-4.7 -1.1, -0.6

say pointing -10.7 1.9

240

17h

Uranus

cross

-4.7 -1.1, -2

say pointing -5.8 2.3 X lateral focus +4mm (vertical)

241

17h

Uranus

pointlisss

-4.7 -1.1, -2

say pointing -4.7 1.9

242

17h

Uranus

cross

-4.7 -1.1, -2

say pointing -5.1 1.7

243

17h

Uranus

pointlisss

-4.7 -1.1, -2

say pointing -5.7 3.0

244

17h

Uranus

cross

-4.7 -1.1, -0.6

say pointing -7.8 -1.3

245

17h

Uranus

pointlisss

-4.7 -1.1, -0.6

say pointing -7.7 -1.1

246

17h

Uranus

cross

-4.7 -1.1, -0.6

say pointing -6.9 -0.3

247

17h49

Uranus

pointlisss

-4.7 -1.1, -0.6

say pointing -7.7 -1.1. end of 3D focus sequence, lateral back to 0

248

17h50

DIY_Tip

skydip_up

-4.7 -1.1, -0.6

say tau = 0.59 @ 1mm, 0.55 @ 2mm (tau meter = 0.004).

249

18h00

Uranus

cross

-4.7 -1.1, -1.3

say pointing -6.6 -0.8

250

18h02

Uranus

focusp

-6.6 -0.8, -1.3

say focus -1.58 @ 1mm, -1.27 @ 2mm

251

18h07

Uranus

cross

-6.6 -0.8, -1.5

say pointing -5.6 -2.0

252

18h10

Uranus

otfgeom

-5.6 -2.0, -1.5

quicklook process => FWHM with max pixels = 13" @ 1mm, 20" @ 2mm

253

18h25

Uranus

otfgeom

-5.6 -2.0, -1.5

New NIKA pointing model implemented in NCS. quicklook process => bad fit... humidity ~ 100%... tau meter not reliable

254

18h40

Uranus

cross

-5.6 -2.0, -1.5

polariser mounted AND HWP on say pointing -5.3 -1.2

255

18h42

Uranus

focusp

-5.3 -1.2, -1.5

say focus -0.59 @ 1mm, -0.38 @ 2mm but huge error bars

256

18h42

Uranus

focusp

-5.3 -1.2, -1.5

HWP off. say focus -4.2 @ 1mm, -1.8 @ 2mm Huge error bars, huge sky variaions on timelines

257-261

18h57

Uranus

focusliss

-5.3 -1.2, -1.5

say focus -1.4 @ 1mm, -0.9 @ 2mm view the sky noise it makes no sense doing beam maps

262

19h00

DIY_Tip

skydip_up

-5.3 -1.2, -1.5

say tau = 0.06 @ 1mm, 0.02 @ 2mm Huge variations: few clouds passing in front of excelent sky ?

263

19h12

DIY_Tip

cross

-5.3 -1.2, -1.5

say pointing ...nothing, cross on empty sky: forgot to choose source Uranus

264

19h14

Uranus

cross

-5.3 -1.2, -1.5

HWP on say pointing

265

19h17

Uranus

otfgeom

-5.3 -1.2, -1.5

266

19h38

Uranus

otfgeom

-5.3 -1.2, -1.5

1 missing bloc!

267

19h50

Uranus

otfgeom

-5.3 -1.2, -1.5

268

20h17

DIY_Tip

skydip_up

-5.3 -1.2, -1.5

say tau = 0.06 @ 1mm, 0.02 @ 2mm but the wind is strong

269

20h28

pointliss_pol

W3OH

-5.3 -1.2, -1.5

pb with pipeline to reduce pointliss_pol

270

20h31

pointliss_pol

W3OH

-5.3 -1.2, -1.5

271

20h33

pointliss_pol

W3OH

-5.3 -1.2, -1.5

272

20h35

pointliss_pol

W3OH

-5.3 -1.2, -1.5

273

20h40

pointliss_pol

W3OH

-5.3 -1.2, -1.5

274

20h45

pointliss_pol

3C84

-5.3 -1.2, -1.5

275

20h45

cross

3C84

-5.3 -1.2, -1.5

say pointing ... too noisy...

276

20h50

cross

3C84

-5.3 -1.2, -1.5

HWP off say pointing ... too noisy...

277

20h59

otfgeom

3C84

-5.3 -1.2, -1.5

HWP on canceled

278

21h00

focusp

3C84

-5.3 -1.2, -1.5

HWP off say focus no 2mm data: NIKEL 2 crashed

279

21h13

otfgeom

3C84

-5.3 -1.2, -1.5

HWP on. Already beyond the time limit we set ourself for polar; take chance focus didn't change lot other last 2 hours...

280

21h40

cross

3C84

-5.3 -1.2, -1.5

polariser dismounted. Keep last 2 hours for continuum on APM08279 & M82, with optimisation of tones S/N; 1 hour. say pointing -19 -1 very noisy (wind perpendicular to antenna)

281

21h45

cross

3C84

-5.3 -1.2, -1.5

say pointing -19 -1 very noisy (wind perpendicular to antenna)

282

21h50

focusp

3C84

-5.3 -1.2, -1.5

say focus data too noisy

283

22h00

cross

0716+714

-5.3 -1.2, -1.5

say pointing -15.8 1.9 COHERENT WITH PREVIOUS CROSSES: IS THERE A PB OF SIGN IN ONE OF THE NEW POINTING MODEL COEFF ?

284

22h05

focusp

0716+714

-15.8 1.9, -1.5

say focus -1.0 @ 1mm -1.3 @ 2mm data noisy

285-289

22h15

focusliss

0716+714

-15.8 1.9, -1.5

say focus -1.3 @ 1mm (-0.5 @ 2mm) (... but wind blows)

290

22h30

otf3x3

APM08279

-15.8 1.9, -1.3

291

22h37

otf3x3_el

APM08279

-15.8 1.9, -1.3

292

22h45

otf3x3

APM08279

-15.8 1.9, -1.3

293

22h52

otf3x3_el

APM08279

-15.8 1.9, -1.3

RUN 7 IS FINISHED didn' t have time to go to M2 which is nearby, sorry Alexandre.

NK2014_Jan27 (last edited 2014-01-27 23:05:38 by NikaBolometer)