From: stephanie snedden Subject: Re: 2.5m obslog 20061026 (MJD 54035) Date: Fri, 27 Oct 2006 08:08:01 -0600 Yes, and if we hadn't had to close for wind, we were going to let the next run proceed even if it aborted. We never had to do that, though. Steph On Oct 27, 2006, at 8:03 AM, jeg@astro.princeton.edu wrote: > > For the supernova runs (or any stripe 82 runs), the rotator is even > more nearly stationary than the telescope, and I would bet could > just be > turned off. I will check. In any case, I think that a procedural thing > which would likely stop the problem is to wiggle the rotator a > degree or so in each direction before starting a scan. > > Notice the rotator column in the skippy and LTmatch records below. The > rotator is stationary to far, far better than the allowable error. I > do not doubt that an aging servo and bearing might have trouble in the > cold, but we don't need to move. > > --jim > >> >> A promising night turned a little frustrating, but we had a half >> night's >> worth of rewards. >> >> o Four rotator aborts at low tracking speeds >> o high wind gusts and very poor seeing > > **ROT** >> 6501 101 4 81 4.500 0.153 -0.200 0.210 -0.02336 >> 243 35 >> 6501 112 4 61 4.300 0.176 -0.500 0.159 -0.02342 >> 243 35 >> 6501 162 4 46 3.500 0.181 -1.300 0.103 -0.02313 >> 243 35 >> 6501 215 4 58 3.200 0.217 -2.000 0.121 -0.02336 >> 243 35 >> 6501 265 4 52 2.600 0.165 -2.600 0.151 -0.02202 >> 243 35 >> 6501 316 4 49 2.800 0.183 -2.900 0.146 -0.02190 >> 243 35 >> 6501 386 4 45 2.900 0.176 -2.900 0.168 -0.02242 >> 243 35 >> 6501 439 4 43 2.600 0.141 -3.200 0.139 -0.02211 >> 243 35 >> 6501 492 4 45 2.600 0.169 -3.400 0.150 -0.02247 >> 243 35 >> 6501 543 4 45 2.200 0.187 -3.500 0.166 -0.02236 >> 243 35 >> 6501 594 4 51 2.200 0.134 -3.600 0.134 -0.02198 >> 243 35 >> 6501 646 4 62 1.700 0.171 -3.700 0.162 -0.02243 >> 243 35 >> ---=== LTMATCH RESULTS ===--- >> >> Run Field nFields alt az nGood rowMean rowSig colMean colSig >> **ROT** >> --------------------------------------------------------------------- >> --- >> 6501 199 1 35 297 8 -2.629 0.441 2.746 0.223 >> -0.00923 >> 6501 199 1 35 297 12 -2.070 0.404 2.787 0.173 >> -0.00937 >> 6501 199 1 35 297 19 -1.611 0.350 3.039 0.230 >> -0.01022 >> 6501 199 1 35 297 12 -1.187 0.431 2.993 0.169 >> -0.01006 >> 6501 199 1 35 297 16 -1.014 0.298 2.764 0.226 >> -0.00929 >> 6501 244 1 35 297 6 -2.480 0.440 2.487 0.392 >> -0.00836 >> 6501 244 1 35 297 3 -2.357 0.123 3.215 0.127 >> -0.01081 >> 6501 244 1 35 297 8 -1.757 0.506 3.136 0.361 >> -0.01054 >> 6501 244 1 35 297 7 -1.440 0.274 3.443 0.247 >> -0.01157 >> 6501 244 1 35 297 5 -1.061 0.241 3.515 0.491 >> -0.01182 >> 6501 293 1 35 297 11 0.586 0.275 3.334 0.300 >> -0.01121 >> 6501 293 1 35 297 8 0.840 0.228 3.593 0.344 >> -0.01208 >> 6501 293 1 35 297 4 1.381 0.237 4.251 0.206 >> -0.01429 >> 6501 293 1 35 297 6 1.285 0.332 4.211 0.430 >> -0.01416 >> 6501 293 1 35 297 12 1.608 0.361 4.307 0.373 >> -0.01448 >> 6501 327 1 35 297 6 -1.529 0.155 3.246 0.180 >> -0.01091 >> 6501 327 1 35 297 9 -1.153 0.109 3.385 0.284 >> -0.01138 >> 6501 327 1 35 297 10 -1.000 0.244 3.221 0.354 >> -0.01083 >> 6501 327 1 35 297 15 -0.708 0.157 3.589 0.314 >> -0.01206 >> 6501 327 1 35 297 10 -0.171 0.260 3.764 0.335 >> -0.01265 >> 6501 334 1 35 297 13 -0.983 0.164 3.092 0.326 >> -0.01040 >> 6501 334 1 35 297 13 -1.075 0.300 3.032 0.219 >> -0.01019 >> 6501 334 1 35 297 13 -0.795 0.417 3.147 0.406 >> -0.01058 >> 6501 334 1 35 297 10 -0.475 0.425 3.256 0.232 >> -0.01095 >> 6501 334 1 35 297 11 -0.211 0.459 3.379 0.305 >> -0.01136 >> 6501 395 1 35 297 5 -1.017 0.535 3.130 0.559 >> -0.01052 >> 6501 395 1 35 297 12 -0.958 0.371 2.695 0.476 >> -0.00906 >> 6501 395 1 35 297 13 -0.463 0.581 2.762 0.811 >> -0.00929 >> 6501 395 1 35 297 5 0.183 0.445 3.481 0.411 >> -0.01170 >> 6501 395 1 35 297 4 -0.092 0.238 3.495 0.429 >> -0.01175 >> 6501 414 1 35 297 9 -2.433 0.332 3.171 0.214 >> -0.01066 >> 6501 414 1 35 297 10 -2.273 0.408 2.827 0.350 >> -0.00950 >> 6501 414 1 35 297 10 -2.032 0.283 2.828 0.277 >> -0.00951 >> 6501 414 1 35 297 10 -1.533 0.297 3.009 0.311 >> -0.01012 >> 6501 414 1 35 297 12 -1.231 0.295 3.334 0.248 >> -0.01121 >> 6501 430 1 35 297 12 -1.052 0.189 2.730 0.174 >> -0.00918 >> 6501 430 1 35 297 17 -0.608 0.238 2.970 0.166 >> -0.00999 >> 6501 430 1 35 297 12 -0.448 0.300 3.049 0.141 >> -0.01025 >> 6501 430 1 35 297 13 0.000 0.226 3.224 0.254 >> -0.01084 >> 6501 430 1 35 297 9 0.129 0.296 3.290 0.214 >> -0.01106 >> 6501 448 1 35 297 15 -1.304 0.132 2.791 0.237 >> -0.00938 >> 6501 448 1 35 297 11 -0.939 0.167 2.998 0.270 >> -0.01008 >> 6501 448 1 35 297 10 0.332 3.041 3.107 0.571 >> -0.01045 >> 6501 448 1 35 297 11 -0.205 0.186 2.704 0.155 >> -0.00909 >> 6501 448 1 35 297 7 0.446 0.145 3.520 0.348 >> -0.01184 >> 6501 466 1 35 297 10 -1.374 0.470 2.845 0.249 >> -0.00957 >> 6501 466 1 35 297 18 -1.076 0.409 2.824 0.304 >> -0.00950 >> 6501 466 1 35 297 11 -0.686 0.239 3.085 0.235 >> -0.01037 >> 6501 466 1 35 297 12 -0.557 0.297 3.077 0.261 >> -0.01034 >> 6501 466 1 35 297 13 0.183 0.286 3.380 0.251 >> -0.01137 >> 6501 502 1 35 297 11 -1.477 0.347 2.549 0.357 >> -0.00857 >> 6501 502 1 35 297 24 -1.224 0.189 2.671 0.153 >> -0.00898 >> 6501 502 1 35 297 11 -0.669 0.257 2.694 0.109 >> -0.00906 >> 6501 502 1 35 297 8 -0.419 0.186 2.861 0.102 >> -0.00962 >> 6501 502 1 35 297 13 0.003 0.265 3.320 0.223 >> -0.01116 >> 6501 518 1 35 297 15 -1.865 0.196 3.296 0.448 >> -0.01108 >> 6501 518 1 35 297 12 -1.413 0.296 3.457 0.346 >> -0.01162 >> 6501 518 1 35 297 4 -1.077 0.323 3.779 0.125 >> -0.01271 >> 6501 518 1 35 297 13 -0.711 0.228 3.652 0.469 >> -0.01228 >> 6501 518 1 35 297 8 -0.044 0.175 3.917 0.343 >> -0.01317 >> 6501 529 1 35 297 15 -1.606 0.272 3.165 0.194 >> -0.01064 >> 6501 529 1 35 297 14 -1.185 0.212 3.149 0.223 >> -0.01059 >> 6501 529 1 35 297 13 -0.811 0.300 3.080 0.167 >> -0.01036 >> 6501 529 1 35 297 7 -0.549 0.215 3.270 0.228 >> -0.01099 >> 6501 529 1 35 297 13 -0.288 0.267 3.370 0.290 >> -0.01133 >> 6501 552 1 35 297 9 -0.896 0.306 3.032 0.338 >> -0.01019 >> 6501 552 1 35 297 23 -0.529 0.288 3.546 0.436 >> -0.01192 >> 6501 552 1 35 297 12 -0.043 0.304 3.304 0.286 >> -0.01111 >> 6501 552 1 35 297 8 0.182 0.345 3.579 0.402 >> -0.01203 >> 6501 552 1 35 297 23 0.697 0.402 3.341 0.414 >> -0.01123 >> 6501 570 1 35 297 15 -1.244 0.262 3.242 0.508 >> -0.01090 >> 6501 570 1 35 297 8 -0.995 0.208 3.207 0.315 >> -0.01078 >> 6501 570 1 35 297 12 -0.892 0.211 2.700 0.144 >> -0.00908 >> 6501 570 1 35 297 9 -0.702 0.272 2.985 0.185 >> -0.01004 >> 6501 570 1 35 297 9 -0.177 0.320 3.203 0.403 >> -0.01077 >> 6501 605 1 35 297 17 -0.857 0.169 2.638 0.216 >> -0.00887 >> 6501 605 1 35 297 17 -0.601 0.165 3.022 0.244 >> -0.01016 >> 6501 605 1 35 297 18 0.047 0.209 3.150 0.174 >> -0.01059 >> 6501 605 1 35 297 19 0.151 0.146 3.014 0.264 >> -0.01013 >> 6501 605 1 35 297 14 0.504 0.186 3.220 0.272 >> -0.01082 >> 6501 623 1 35 297 15 -0.687 0.247 3.175 0.233 >> -0.01068 >> 6501 623 1 35 297 9 -0.337 0.154 3.155 0.167 >> -0.01061 >> 6501 623 1 35 297 11 0.247 0.239 3.339 0.499 >> -0.01123 >> 6501 623 1 35 297 16 0.689 0.424 3.394 0.521 >> -0.01141 >> 6501 623 1 35 297 10 0.834 0.438 3.045 0.227 >> -0.01024 >> 6501 639 1 35 297 16 -2.471 0.130 2.661 0.340 >> -0.00895 >> 6501 639 1 35 297 16 -2.203 0.199 2.819 0.396 >> -0.00948 >> 6501 639 1 35 297 18 -1.890 0.393 2.883 0.467 >> -0.00969 >> 6501 639 1 35 297 15 -1.560 0.186 3.208 0.301 >> -0.01078 >> 6501 639 1 35 297 8 -1.203 0.273 3.371 0.194 >> -0.01133