NK2014_Oct08

Scan

UT

Source

Command

Az

El

Pointing X, Y, Focus

Tau225

Comment

276

18h20

1749+096

Track off -200 -200

219

56

0,0,-1.8

0.6

277

18h26

1749+096

Track off -200 -200

219

56

0,0,-1.8

0.6

track source waiting to start observations

278

18h29

1749+096

@cross

219

56

0,0,-1.8

0.6

croix

279

18h33

mars

Track off -200 -200

214

19

0,0,-1.8

0.6

track mars

280

18h34

mars

@otfgeom

214

19

0,0,-1.8

0.6

otf mars

281

18h48

mars

@cross

217

18

0,0,-1.8

0.6

cross mars : 100" away: going back to 1749 to check

282

18h51

1749+096

Track off -200 -200

230

52

0,0,-1.8

0.6

go to 1749 to check if see source

283

18h53

1749+096

@cross

230

52

0,0,-1.8

0.6

code Nico plante: redo

284

18h58

1749+096

@cross

232

51

0,0,-1.8

0.6

source unseen: opacity ? + KIDs tuning unstable: go to brighter source

285

19:02

3c454

Track off -200 -200

106

46

0,0,-1.8

0.6

286

19:06

3c454

@cross

106

46

0,0,-1.8

0.6

287

19:08

3c454

@cross

106

46

0,0,-1.8

0.6

source at more than 50"

288

19:12

3c454

@otf3x3

109

49

0,0,-1.8

0.6

otf on 3c454: realize that source coordinates and coordinates tracked by telescope are different ?

289

19:15

3c454

Track off -200 -200

109

49

0,0,-1.8

0.6

otf on 3c454

290

19:18

3c454

@otf3x3

110

49

0,0,-1.8

0.6

checking again

291

19:19

3c454

@otf3x3

110

49

0,0,-1.8

0.6

292

19:23

3c454

@otf3x3

110

49

0,0,-1.8

0.6

293

19:29

3c454

@otf3x3

110

49

0,0,-1.8

0.6

set offset 0 0 /SYS Nasmyth

294

19:29

3c454

track

110

49

0,0,-1.8

0.6

295

19:29

3c454

@otf3x3

110

49

0,0,-1.8

0.6

M4 was not correctly in place !! That explains the large offsets..

296

19:42

3c454

@otf3x3

110

49

0,0,-1.8

0.6

New otf with correct M4 position, source seen !!

297

19:45

3c454

track

110

49

0,0,-1.8

0.6

298

19:46

3c454

track

110

49

0,0,-1.8

0.6

Bad : Operators in the beam...

299

19:46

3c454

track

110

49

0,0,-1.8

0.6

canceled

300

19:46

3c454

track

110

49

0,0,-1.8

0.6

301

19:52

3c454

@otf3x3

118

55

0,0,-1.8

0.65

offset 21.2 36.75 /sys nasmyth

302

19:57

3c454

track

119

56

0,0,-1.8

0.65

303

19:52

3c454

@cross

119

56

0,0,-1.8

0.65

offset 7.2 7.2 /sys/ nas

304

20:03

3c454

@focusp

119

56

0,0,-1.8

0.65

305

20:06

3c454

@cross

122

57

0,0,-1.8

0.65

offset -7.2 -7.2 /sys/ nas

306

20:10

3c454

@cross

122

57

0,0,-1.8

0.65

offset 7.2 7.2 /sys/ nas

307

20:14

3c454

@otfgeom

125

59

0,0,-1.8

0.65

offset 21.2 36.75 /sys nas

308

20:28

3c454

@cross

129

60

0,0,-1.8

0.65

problem scan: can not be reduced

309

20:31

3c454

@cross

130

61

0,0,-1.8

0.65

problem scan: can not be reduced

310

20:33

3c454

@cross

130

61

0,0,-1.8

0.65

@end: set offset 28.9 42.2

311

20:39

3c454

@cross

134

62

0,0,-1.8

0.65

@end: set offset 13.5 31.3

312

20:39

3c454

@cross

135

63

0,0,-1.8

0.65

source seems closer but corrections given by soft do not change

313

20:42

3c454

@cross

135

63

0,0,-1.8

0.65

314

20:48

3c454

@cross

135

63

0,0,-1.8

0.65

trying to do cross with offsets 0,0 - @end: set offset 0 15 seems good enough: set pointing -19.7 11.4

315

21:00

3c454

@cross

144

65

0,0,-1.8

0.65

source is centered

316

21:03

uranus

track -200 -200

117

39

0,0,-1.8

0.65

317

21:03

uranus

@cross

118

39

0,0,-1.8

0.65

retuning: untrustable result

318

21:06

uranus

@cross

118

39

0,0,-1.8

0.65

319

21:08

uranus

@focusp

119

39

0,0,-1.8

0.7

do not do focus correction: bad weather and source size seems ok. apply set pointing -26 1.9

320

21:13

uranus

@cross

120

40

0,0,-1.8

0.7

can not reduce ?

321

21:13

uranus

@otfgeom

123

43

0,0,-1.8

0.65

uranus is centered

322

21:37

DIY

@obs/diyup

122

20

0,0,-1.8

0.65

cancelled

323-327

21:40

DIY

@obs/diyup

122

20

0,0,-1.8

0.62

cancelled

328

21:49

DIY

@obs/diyup

122

20

0,0,-1.8

0.62

329

22:04

Uranus

track -200 -200

129

48

0,0,-1.8

0.63

330

22:11

Uranus

track -200 -200

129

48

0,0,-1.8

0.63

331

22:11

Uranus

@otfgeom_25

129

48

0,0,-1.8

0.63

crap : the HWP stopped rotating (speed 2.98 Hz 16 meas/turn) - scan cancelled

332

22:23

Uranus

@otfgeom_25

139

51

0,0,-1.8

0.6

20 meas/turn, 25 arcsec/sec

332

22:23

Uranus

@otfgeom_25

139

51

0,0,-1.8

0.6

20 meas/turn, 25 arcsec/sec

333

22:47

Uranus

track

139

51

0,0,-1.8

0.6

to tune

334

22:51

Uranus

track

153

55

0,0,-1.8

0.6

seeing the plate turning in the signal (omega, 2omega and 4omega peaks). Trying to remove polarizer

335

22:59

Uranus

track

154

55

0,0,-1.8

0.6

less 2omega and 4omega so they were due to polarized noise, but still a lot of noise at frequency omega (3Hz or so): will check if waveplate is well aligned. Time to use the Vernier caliper !!

336-340

23:01

Uranus

track

156

56

0,0,-1.8

0.6

tracking uranus while andrea and alain try to fix the waveplate