NIKA October 10th, 2014 / S4 [[D2DLogNika9 |Back to list of day to day logbook of observations]] == 2014-10-10 == ---- Opacity is measured with the new taumeter at 225 GHz Nasmyth offsets : 21.2, 36.75 Set pointing : 0, 0 Set Focus : -1.8 mm .Quick description of the session: measure polarization of quasars at various elevations and planets to test our system and calibrate ---- Polarizer on, HWP on but not turning at session start Data Repository: Raw_X35 Acquisition = 59,605 Hz Observing account: t21 Values in brackets [] are not updated. ||'''Scan'''||'''UT'''|| '''Source''' ||'''Command''' ||'''Az'''||'''El'''||'''Pointing X, Y, Focus'''||'''Tau225'''|| '''Comment''' || || 110-111 || 18h14 || 2200+420 (BLLac)|| Track off -200 -200 || 67 || 58 || 0,0,-1.8 || 0.7 || Tuning || || 112 || 18h18 || 2200+420 (BLLac)|| @cross || 67 || 58 || 0,0,-1.8 || 0.7 || || || 113 || 18h18 || 2200+420 (BLLac)|| @cross || 67 || 58 || 0,0,-1.8 || 0.7 || || || 114 || 18h || 2200+420 (BLLac)|| @cross or track ? || 67 || 58 || 0,0,-1.8 || 0.7 || || || 115 || 18h || 2200+420 (BLLac)|| track || 67 || 58 || 0,0,-1.8 || 0.7 || || || 116 || 18h28 || 2200+420 (BLLac)|| track || 67 || 58 || 0,0,-1.8 || 0.7 || || || 117 || 18h30 || 2200+420 (BLLac)|| @cross || 67 || 58 || 0,0,-1.8 || 0.7 || Holes in the data || || 118 || 18h34 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.7 || try to center on ref detector using updated pipeline || || 119 || 18h37 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.7 || offset 42 31 /sys nasmyth || || 120 || 18h40 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.7 || offset 21 5.8 /sys nasmyth || || 121 || 18h42 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.7 || offset 0 5.8 /sys nasmyth || || 122 || 18h46 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.8 || offset -19 5.8 /sys nasmyth - holes in the data || || 123 || 18h48 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.8 || offset -19 5.8 /sys nasmyth - holes in the data || || 124 || 18h50 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.8 || offset -19 5.8 /sys nasmyth OK well centered || || 125 || 18h52 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.8 || set pointing -41.2 5.0 || || 126 || 18h54 || 2200+420 (BLLac)|| @cross || 67 || 61 || 0,0,-1.8 || 0.8 || set pointing 0 0 - holes in the data || || 127 || 18h56 || 2200+420 (BLLac)|| @cross || 67 || 65 || 0,0,-1.8 || 0.8 || set pointing 0 0 (in Alain data only 1 hole at 18h42m49s) || || 128 || 18h58 || 2200+420 (BLLac)|| @cross || 67 || 65 || 0,0,-1.8 || 0.8 || set pointing 41.2 0 || || 129 || 19h00 || 2200+420 (BLLac)|| @cross || 67 || 65 || 0,0,-1.8 || 0.8 || set pointing -41.2 0 || || 130 || 19h10 || 2200+420 (BLLac)|| @cross || 67 || 65 || 0,0,-1.8 || 0.8 || set pointing 0 0 source on ref det but offset w.r.t az-el offset 0 0|| || 131 || 19h13 || 2200+420 (BLLac)|| @focusp || 67 || 65 || 0,0,-1.8 || 0.8 || || || 132 || 19h16 || DIY-Tip || @skydip_up || 67 || 45 || 0,0,-1.8 || 0.8 || || || 133 || 19h29 || 2200+420 (BLLac)|| track || 67 || 65 || 0,0,-1.8 || 0.7 || || || 134 || 19h30 || 2200+420 (BLLac)|| @focusp || 67 || 65 || 0,0,-1.8 || 0.7 || - holes in data (MJD antenna) || || 135 || 19h30 || 2200+420 (BLLac)|| @focusp || 67 || 65 || 0,0,-1.8 || 0.7 || (pipeline say set focus -2.78) || || 136 || 19h30 || 2200+420 (BLLac)|| @focusp || 67 || 65 || 0,0,-2.78 || 0.7 || set focus -2.78 (pipeline say set focus -2.0) || || 137-139 || 19h44 || 2200+420 (BLLac)|| @otf3x3 || 63 || 74 || 0,0,-2.78 || 0.7 || HWP rotating: 2.48Hz 6pts independants - LOOK AT DATA ON X9|| || 140-141 || 19h55 || 2200+420 (BLLac)|| @otf3x3 || 61 || 76 || 0,0,-2.78 || 0.7 || cancelled at scan 142 : max azimuth reached || || 143 || 20h09 || 2200+420 (BLLac)|| track || 416 || 79 || 0,0,-2.78 || 0.7 || set topology high and track source while looking for imbfits. || || 144-146 || 20h20 || 2200+420 (BLLac)|| @otf3x3 || 410 || 80 || 0,0,-2.78 || 0.7 || HWP not rotating to check data || || 147 || 20h33 || 2200+420 (BLLac)|| @otf3x3 || 400 || 82 || 0,0,-2.78 || 0.7 || HWP rotating 6pts independants. only one coverage because reaching elevation limit || || 148 || 20h39 || NGC7538 || track || 381 || 61 || 0,0,-2.78 || 0.6 || HWP rotating 6pts independants. || || 149-151 || 20h41 || NGC7538 || @otf5x5 || 382 || 61 || 0,0,-2.78 || 0.6 || HWP rotating 6pts independants. HWP stopped during scan 151: ignore and use only 149 || || 152 || 21h01 || NGC7538 || @otf5x5 || 377 || 63 || 0,0,-2.78 || 0.6 || HWP rotating 8pts independants. HWP stopped : cancelled || || 153-155 || 21h08 || NGC7538 || @otf3x3 || 375 || 63 || 0,0,-2.78 || 0.6 || HWP rotating 8pts independants. || || 156 || 21h20 || 3C84 || track || 419 || 34 || 0,0,-2.78 || 0.6 || go to 3C84 for a cross || || 157 || 21h22 || 3C84 || @cross || 419 || 34 || 0,0,-2.78 || 0.6 || || || 158 || 21h23 || 3C84 || @otf3x3 || 420 || 34 || 0,0,-2.78 || 0.6 || HWP rotating 8pts independants. cancelled because motor speed too high|| || 159 || 21h27 || 3C84 || track || 420 || 34 || 0,0,-2.78 || 0.6 || HWP rotating 8pts independants. see if motor currents come back|| || 160 || 21h28 || 3C84 || track || 420 || 34 || 0,0,-2.78 || 0.6 || HWP rotating 8pts independants. motor speed : cancelled. change source to avoid wind direction || || 161 || 21h32 || NGC7538 || track || 370 || 64 || 0,0,-2.78 || 0.6 || HWP rotating 8pts independants. Holes in data really annoying, they are due to missing antenna MJD data lacking: Antenna not recorded anymore except on MAC10 || || 162 || 21h32 || NGC7538 || @otf3x3 || 375 || 63 || 0,0,-2.78 || 0.6 || cancelled: andrea was creating a file || || 163-165 || 21h33 || NGC7538 || @otf3x3 || 369 || 64 || 0,0,-2.78 || 0.5 || HWP rotating 8pts independants. || || 166-168 || 21h44 || NGC7538 || @otf3x3 || 366 || 65 || 0,0,-2.78 || 0.5 || HWP rotating 8pts independants. || || 169 || 21h54 || 2200+420 (BLLac)|| track || 299 || 77 || 0,0,-2.78 || 0.5 || go on BLLac to do pointing focus || || 170 || 21h57 || 2200+420 (BLLac)|| cross || 299 || 77 || 0,0,-2.78 || 0.5 || || || 171 || 21h59 || 2200+420 (BLLac)|| focus || 299 || 77 || 0,0,-2.4 || 0.5 || set focus -2.4 || || 172 || 22h08 || 2200+420 (BLLac)|| otfgeom_20 || 296 || 75 || 0,0,-2.4 || 0.45 || otfgeometry with rotation of HWP || || 173 || 22h32 || DIY || skydip_up || 310 || 20 || 0,0,-2.4 || 0.5 || cancelled because bad azimuth in macro || || 174 || 22h36 || DIY || skydip_up || 310 || 20 || 0,0,-2.4 || 0.5 || with HWP rotating || || 175 || 22h43 || 2200+420 (BLLac)|| track || 292 || 68 || 0,0,-2.4 || 0.5 || go on BLLac to do OTF || || 176-178 || 22h45 || 2200+420 (BLLac)|| @otf3x3 || 292 || 68 || 0,0,-2.4 || 0.55 || HWP rotating OTF || || 179-181 || 22h55 || 2200+420 (BLLac)|| @otf3x3 || 291 || 66 || 0,0,-2.4 || 0.55 || HWP rotating OTF - issues with Fifo ?|| || 182 || 23h07 || 2200+420 (BLLac)|| otfgeom_20 || 296 || 64 || 0,0,-2.4 || 0.45 || otfgeometry without rotation of HWP to try implement nasmyth offsets. some gaps in data, might be better on X35 || || 183 || 23h30 || NGC7538 || track || 338 || 62 || 0,0,-2.4 || 0.6 || HWP not rotating || || 184 || 23h30 || DIY || skydip_up || 340 || 20 || 0,0,-2.4 || 0.6 || skydip without HWP rotating || || 185 || 23h39 || NGC7538 || track || 337 || 61 || 0,0,-2.4 || 0.6 || go to NGC7538 || || 186-188 || 23h40 || NGC7538 || @otf3x3 || 336 || 61 || 0,0,-2.4 || 0.6 || otf map without polar to compare stokesI || || 189-190 || 23h49 || NGC7538 || @otf3x3 || 334 || 60 || 0,0,-2.4 || 0.6 || otf map with polar : HWP rotating at 1.86Hz ie 8 pts indep. Might lack data in 189 - look at data on X9 || || 1-2 || 00h03 || NGC7538 || @otf3x3 || 332 || 59 || 0,0,-2.4 || 0.6 || otf map with polar : HWP rotating at 1.86Hz ie 8 pts indep || || 3 || 00h16 || CasA || track || 332 || 59 || 0,0,-2.4 || 0.6 || || || 4 || 00h19 || 2200+420 (BLLac)|| track || 303 || 57 || 0,0,-2.4 || 0.6 || || || 5 || 00h21 || 2200+420 (BLLac)|| @cross || 293 || 51 || 0,0,-2.4 || 0.6 || || || 6 || 00h22 || 2200+420 (BLLac)|| @focusp || 293 || 51 || 0,0,-2.4 || 0.6 || || || 7-8 || 00h29 || 2200+420 (BLLac)|| @otf3x3 || 293 || 49 || 0,0,-2.4 || 0.6 || || || 9 || 00h47 || 2200+420 (BLLac)|| @cross || 294 || 46 || 0,0,-2.4 || 0.6 || || || 10 || 00h51 || 2200+420 (BLLac)|| @otf3x3 || 293 || 48 || 0,0,-2.4 || 0.6 || set pointing: 9.9 -21.6 || || 11 || 00h51 || 2200+420 (BLLac)|| @otf3x3 || 293 || 48 || 0,0,-2.4 || 0.6 || cancelled|| || 12 || 00h59 || 2200+420 (BLLac)|| @cross || 294 || 46 || 9.9,-21.6,-2.4 || 0.6 || || || 13 || 01h01 || 2200+420 (BLLac)|| @cross || 294 || 43 || 9.9,-21.6,-2.4 || 0.6 || || || 14 || 01h03 || 2200+420 (BLLac)|| @cross || 294 || 43 || 9.9,-21.6,-2.4 || 0.6 || || || 15-17 || 01h08 || CasA || @otf1x1_CasA || 321 || 54 || 9.9,-21.6,-2.4 || 0.6 || otf map on the brightest part of Cass A at 23:23:15 +58:48:42.8. Different sizes in Ra and Dec to haveemission-free ends of scans. || || 18 || 01h21 || BLLac || track || 297 || 40 || 12,-23,-2.4 || 0.6 || set pointing 12 -23 from previous cross and will test the pointing on BLLac (check Nasmyth offsets are taken into account) || || 19 || 01h23 || BLLac || cross || 297 || 40 || 12,-23,-2.4 || 0.6 || test the pointing on BLLac (check Nasmyth offsets are taken into account) || || 20 || 01h26 || BLLac || cross || 297 || 40 || 0,0,-2.4 || 0.6 || set pointing 0 0 and test again the pointing on BLLac || || 21 || 01h30 || BLLac || cross || 297 || 38 || 0,0,-2.4 || 0.6 || redo because previous data has glitch || || 22 || 01h34 || BLLac || cross || 298 || 38 || 0,0,-2.4 || 0.6 || again -> set pointing 4.4 -2.9|| || 23 || 01h36 || BLLac || cross || 298 || 38 || 4.4,-2.9,-2.4 || 0.6 || || || 24 || 01h37 || BLLac || focus || 298 || 38 || 4.4,-2.9,-2.4 || 0.6 || set pointing -7 5. focus is crap || || 25 || 01h39 || BLLac || cross || 298 || 38 || -7,5,-2.4 || 0.6 || || || 26 || 01h41 || BLLac || focus || 298 || 37 || -7,5,-2.4 || 0.6 || || || 27 || 01h45 || CasA || track || 319 || 50 || -7,5,-2.4 || 0.6 || go to Cass A to redo maps because gaps in data taken previously || || 28-30 || 01h47 || CasA || @otf1x1_CasA || 320 || 50 || -7,5,-2.4 || 0.6 || otf map on the brightest part of Cass A at 23:23:15 +58:48:42.8. || || 31 || 02h03 || 0355+508 || track || 388 || 73 || -7,5,-2.4 || 0.6 || go do a pointing without polar || || 32 || 02h05 || 0355+508 || cross || 388 || 73 || 7,3,-2.4 || 0.6 || || || 33 || 02h09 || 0355+508 || focus || 388 || 73 || 7,3,-2.4 || 0.6 || cancelled: wind || || 34-35 || 02h12 || 0355+508 || focus || 388 || 73 || 7,3,-2.4 || 0.6 || cancelled: wind. change source || || 38-39 || 02h19 || CRL618 || @otf3x3 || 446 || 73 || 7,3,-2.4 || 0.6 || flux calibrator without polar || || 40 || 02h29 || CRL618 || focus || 446 || 73 || 7,3,-2.4 || 0.6 || set focus -2 || || 41 || 02h32 || BLLac || track || 302 || 28 || 7,3,-2 || 0.6 || || || 42 || 02h33 || BLLac || cross || 303 || 28 || 7,3,-2 || 0.6 || set pointing -10 -1 || || 43-44 || 02h38 || BLLac || @otf3x3 || 303 || 28 || 7,3,-2 || 0.6 || otf map with polar at low elevation || || 45 || 02h48 || BLLac || cross || 304 || 26 || -10,-1,-2 || 0.6 || pointing without polar || || 46 || 02h49 || BLLac || diyup || 304 || 26 || -10,-1,-2 || 0.6 || ||