19/20 Dec 2003 Program: PoolW0304 Bolometer: 117 channel Observer: Roberto Maiolino Axel Weiss | ||||||||||||||||
SCAN | LST | UT | source /catalog | prg | pfom | parameters | G | Wb | Ref | Az | El | Col* | Nule | SFCZ | Tau | comments |
weather: hum 75% tmpe 2C wind 3m/s
clear sky yesterdays problems were related to the air control processes of the telescope - problem solved (hopefully....) residual effect in the pointing were noticed in heterodyn observations (large offset from p-model in az, but stable pointing) last recycling this afternoon |
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2263 | 04 01 | 22 23 | bolotip | cal | bt | 2 | 46 | 53 | 250 | 0.579 | Delta P4, P5: 1.02 3.65 | |||||
2264/68 | 04 07 | MARS | cal | p p p f o | 2 | 46 | 53 | 251 | 23 | -11.44 | -24.04 | -3.05 | again difficulties to find pointing low counts DataBase flux: 22% | |||
2269 | 04 21 | W3OH | cal | p p f o | 10 | 46 | 53 | 333 | 59 | -16.78 | -16.08 | -3.37 | nic flux much to low... DB reducion 25% | |||
2273 | 04 33 | bolotip | cal | bt | 10 | 331 | 0.641 | Antenna temperature control seems to be ok | ||||||||
2274 | 04 39 | NGC7538 | cal | p f f o | 10 | 46 | 53 | 324 | 35 | -13.48 | -14.07 | -3.84 | focus driftis like
crazy.... DB reduction: 25%
reapply heat pulse |
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2281 | 05 34 | bolotip | cal | bt | 326 | bad fit - invers curvature - bolometer still unstable???
sky cloudy by now |
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2282 | 05 46 | W3OH | cal | p f f o | 10 | 46 | 53 | 325 | 50 | -16.89 | -7.24 | -4.07 | pointing looks ok... 25% | |||
2286 | 05 53 | bolotip | cal | bt | 324 | now curvature is correct but fit still bad
individual subscans still show instabilities |
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2287 | 06 13 | bolotip | bt | 325 | 0.505 | ok | ||||||||||
2288 | 06 20 | W3OH | cal | p f o | 10 | 46 | 53 | 324 | 46 | -15.40 | -8.56 | -4.04 | focus has stabillized
30% |
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2291 | 06 28 | GL490 | cal | p o | 10 | 46 | 53 | 321 | 53 | 25% | ||||||
2293 | 06 57 | Absorber | 3 xmap 200 4 8 4 /t 50
1 @onf4 |
Aborber maps ... look ok... | ||||||||||||
2297 | 07 28 | GL490 | cal | p f o | 10 | 42 | 53 | 319 | 43 | -16.7 | -11.76 | -3.93 | 25% | |||
2301 | 07 48 | SATURN | p f | f /dir x,y twice each | 2 | 42 | 53 | 226 | 70 | -24.37 | -13.53 | -4.14 | measure lateral focus
getting an error from temperature control |
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2306 | 08 09 | J0739+016 | p f | 10 | 42 | 53 | 192 | 53 | too weak for lateral focus (with current system...) | |||||||
2309 | 08 18 | JUPITER | p | 2 | 42 | 53 | 116 | 38 | to big | |||||||
2311 | 08 25 | W3OH | p f | 10 | 46 | 53 | 326 | 32 | -14.83 | -9.62 | -4.17 | |||||
2319 | 08 56 | bolotip | bt | 327 | 0.413 | |||||||||||
2320 | 09 00 | CRL618 | p f o | 10 | 46 | 53 | 289 | 39 | -15.28 | -7.88 | -4.27 | 40% | ||||
2323 | 09 08 | LKHALF101 | o | 10 | 46 | 53 | 290 | 35 | 40% | |||||||
2324 | 09 23 | bolotip | bt | 290 | 0.403 | |||||||||||
2325/28 | 09 27 | CW-LEO | p p f o | 10 | 46 | 53 | 167 | 65 | -21.20 | -9.40 | 35% give up ..... | |||||
Heterodyn measurement clearly prove, that
these problems are related to surface deformations caused by a failture of the backstructure temperature control AW |
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