NIKA, January 24th, 2014 / S5

Back to list of day to day logbook of observations

2014-01-24

Programm for today:

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

182

15h34

DIY-Tip

skydip_up

0 0, -1.4

OFFSET -37 -30 /sys Nasmyth

183

15h45

Uranus

track

0 0, -1.4

hwp runing, Tau 0.3. problem in raw file writting. good file recovered on Jan 25, imbfits regenerated.

184

15h47

Uranus

pointliss_pol

0 0, -1.4

hwp runing, we see Uranus well only at 1mm, very faint at 2mm ?!

185

15h59

Uranus

pointliss_pol

0 0, -1.4

hwp runing, Uranus very faint on both bands !!

186

16h06

Uranus

otf5x5_pol

0 0, -1.4

hwp runing, check if pb due to scan type...

187

16h16

Uranus

pointliss_pol

0 0, -1.4

rotating hwp stoppted: it works => pb due to processing of lockin

188

16h30

Uranus

cross

0 0, -1.4

rotating hwp restarted: same pb as with pointliss. 1mm say pointing 0 3.4

189

16h30

Uranus

focusp

0 3.4, -1.4

hwp runing, take scan for offline test once lockin fixed

190-191

16h50

Uranus

focusliss

0 3.4, -1.4

hwp runing, take scan for offline test once lockin fixed canceled, hwp stopped during 2nd scan

192-196

16h54

Uranus

focusliss

0 3.4, -1.4

hwp runing, take scan for offline test once lockin fixed, work OK at 1mm -> should set focus -1.2

197

17h03

Uranus

focusp

0 3.4, -1.4

hwp stopped, should set focus -1.4 at 1mm, -1.0 at 2mm -> keep best at 1mm

198

17h07

Uranus

cross

0.7 4.3, -1.4

hwp stopped, should set pointing 0.7 4.3

199

17h14

Uranus

otfgeom_pol

0.7 4.3, -1.4

hwp runing, canceled started oft5x5_pol instead of otfgeom_pol

200

17h14

Uranus

otfgeom_pol

0.7 4.3, -1.4

hwp runing,

201

17h40

3C454.3

track

0.7 4.3, -1.4

hwp runing,

202

17h46

3C454.3

pointliss_pol

0.7 4.3, -1.4

hwp runing, reduced pol scans are currently too weak to compute reliable pointings corrections

203

17h50

2013+270

track

0.7 4.3, -1.4

hwp runing,

204

17h55

2013+270

pointliss_pol

0.7 4.3, -1.4

hwp runing,

205

17h55

2013+270

pointliss_pol

0.7 4.3, -1.4

hwp runing,

206

18h00

MWC349

track

0.7 4.3, -1.4

hwp runing,

207

18h02

MWC349

pointliss_pol

0.7 4.3, -1.4

hwp runing, canceled pb subref motor

208

18h05

MWC349

pointliss_pol

0.7 4.3, -1.4

hwp runing,

209

18h15

3C84

track

0.7 4.3, -1.4

hwp runing, canceled telescope error

210

18h15

3C84

track

0.7 4.3, -1.4

hwp runing, canceled telescope error

211

18h15

3C84

track

0.7 4.3, -1.4

hwp runing, When sources are ~ >1 degree appart, track is not necessary !

212

18h20

3C84

pointliss_pol

0.7 4.3, -1.4

hwp runing,

213

18h25

3C111

pointliss_pol

0.7 4.3, -1.4

hwp runing,

214-218

18h35

Uranus

focusliss

0.7 4.3, -1.4

hwp runing, should set focus -1.4 at 1mm, -1.0 at 2mm -> keep best at 1mm

219

18h45

Uranus

otfgeom

0.7 4.3, -1.4

hwp runing,

220

19h00

3C454.3

pointliss_pol

0.7 4.3, -1.4

hwp runing,

221

19h10

DIY-Tip

skydip_up

0.7 4.3, -1.4

hwp runing, END of Polar session.

222

19h29

Uranus

cross

0.7 4.3, -1.4

hwp stopped, polariser dismounted. bad scan, resonances lost

223

19h34

Uranus

cross

0.7 4.3, -1.4

should set pointing 3.9 7.7

224

19h40

Uranus

focusp

3.9 7.7, -1.4

should set focus -1.5 (prety noisy, fit not accurate, low elevation, tau = 0.45)

225

19h45

Uranus

cross

3.9 7.7, -1.5

should set pointing 4.4 8.2. Use it as 1st point of the pointing session

226-230

19h48

Uranus

focusliss

4.4 8.2, -1.5

should set focus -1.6

231

20h00

Uranus

otfgeom

4.4 8.2, -1.6

232

20h17

0133+476

cross

4.4 8.2, -1.6

should set pointing 5.6 -0.6 scan noisy, do pointliss

233

20h17

0133+476

pointliss

4.4 8.2, -1.6

should set pointing 4.9 -2

234

20h30

0316+413 (3C84)

cross

4.9 -2.0, -1.6

should set pointing 12.9 -1.7

235

20h30

0316+413 (3C84)

cross

-12.9 -1.7, -1.6

disregard, wrong pointing entered

236

20h30

0316+413 (3C84)

cross

12.9 -1.7, -1.6

should set pointing 4.7 -0.5

237

20h40

0316+413 (3C84)

cross

4.7 -0.5, -1.6

should set pointing 1.6 0.6 pointing varies a lot; due to wind ???

238

20h45

0316+413 (3C84)

focusp

1.6 0.6, -1.6

should set focus -0.6 @ 1mm, -1.4 @ 2mm

239-243

20h52

0316+413 (3C84)

focusliss

1.6 0.6, -1.0

should set focus -2.0 @ 1mm, -1.3 @ 2mm -> huge fluctuation @ 1mm wrt scan 238

244

21h06

0316+413 (3C84)

cross

1.6 0.6, -1.3

should set pointing 2.0 1.3, tau 0.7, wind peak 10m/s, pointing session compromised ?

245

21h16

DIY-Tip

skydip_up

2.0 1.3, -1.3

...time to think...

246

21h29

0316+413 (3C84)

otfgeom

2.0 1.3, -1.3

... conditions really limit for a pointing session... try otfgeom on this bright quasar

247

21h49

0316+413 (3C84)

otfgeom

2.0 1.3, -1.3

pb with pipeline (Variable is undefined: BOX.)... take another otf for redundency ... NIKEL 1 might have crashed during the scan

248

22h33

0716+714

cross

2.0 1.3, -1.3

conditions too bad for pointing session & for geometries. go have a look to M82, then GN20 nearby. scan too bad

249

22h33

0716+714

cross

2.0 1.3, -1.3

should set pointing -0.2 -0.9 ... but noisy scan

250

22h40

0716+714

pointliss

2.0 1.3, -1.3

should set pointing -0.1 -0.5

251

22h46

0716+714

focusp

-0.1 -0.5, -1.3

should set focus -1.3

252

22h50

M82

otf3x3

-0.1 -0.5, -1.3

will we see the supernova ?

253

22h59

M82

otf3x3

-0.1 -0.5, -1.3

254

23h05

M82

otf3x3

-0.1 -0.5, -1.3

255

23h15

M82

otf3x3

-0.1 -0.5, -1.3

maps hawful, even co-added

256

23h23

1044+719

pointliss

-0.1 -0.5, -1.3

too faint

257

23h28

(B)1039+811

pointliss

-0.1 -0.5, -1.3

raw data file apparently not written ! => due to timing issue, need to rename xxxx_tim file to recover the data (see Alain's email) good file recovered on Jan 25, imbfits regenerated

258

23h35

(B)1039+811

pointliss

-0.1 -0.5, -1.3

too faint too ... impossible to make pointing correction

259

23h40

GN20

faintlissfast

-0.1 -0.5, -1.3

see how we integrate down very faint source for the remaining 20 min (for noise analysis) with Tau 0.8...

260

23h45

GN20

faintlissfast

-0.1 -0.5, -1.3

do the fast Lissajou rather than slow to beat skynoise ... elevation = 40 deg but many tracking errors 2-5"

261

23h50

GN20

faintlissfast

-0.1 -0.5, -1.3

raw data file apparently not written ! => due to timing issue, need to rename xxxx_tim file to recover the data (see Alain's email) good file recovered on Jan 25, imbfits regenerated

262

23h58

GN20

faintliss1

-0.1 -0.5, -1.3

same size twice slower: tracking errors ~

NK2014_Jan24 (last edited 2014-01-26 00:59:09 by NikaBolometer)