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20040607 report
Relative collimations RxB -to- RxW
The following pointings were performed with receivers B and W_C :
* 6-JUN-2004 16 11 18.31
az el uaz uel hh mm ss.s source Rx
------ ----- ---- ----- ---------- ----------- --
284.18 38.57 -0.7 -6.9 16 11 18.3 VENUS RXB
284.04 40.92 -2.4 -18.9 18 15 11.4 MARS RXW
262.58 59.18 0.8 -20.6 19 12 15.3 IRC+10216 RXW
298.30 62.23 1.9 -18.6 19 28 09.7 CIT6 RXW
265.88 37.35 -1.3 -16.3 21 41 11.4 JUPITER RXW
145.70 37.19 1.2 -14.9 21 52 08.2 16293-2422 RXW
156.70 42.07 5.0 -14.2 22 34 59.3 16293-2422 RXW
157.35 42.28 4.1 -14.5 22 37 17.4 16293-2422 RXW
165.99 44.43 3.9 3.3 23 06 26.4 16293-2422 RXB
108.24 43.79 -0.4 1.3 23 17 50.4 G34.3 RXB
124.18 59.31 -0.3 2.5 00 30 52.4 G34.3 RXB
162.76 70.63 0.6 4.3 01 48 05.3 G34.3 RXB
130.54 47.02 0.0 5.4 03 45 11.2 URANUS RXB
175.04 53.74 1.1 4.0 04 15 32.4 NEPTUNE RXB
199.66 51.83 0.4 3.0 05 17 37.4 NEPTUNE RXB
222.47 42.62 -1.4 0.8 06 32 06.4 NEPTUNE RXB
205.47 57.57 2.0 3.3 06 45 41.4 URANUS RXB
311.48 45.92 -0.7 2.3 06 55 20.2 W75N RXB
184.56 73.63 3.8 4.5 07 08 01.5 TXPSC RXB
225.03 67.65 3.4 1.0 08 05 14.2 TXPSC RXB
243.97 32.12 -2.6 -4.7 09 13 22.2 URANUS RXB
247.24 27.16 -2.3 -16.7 09 36 34.2 URANUS RXW
248.84 24.38 -3.3 -4.4 09 49 13.4 URANUS RXB
Consecutive pointings with B & W give relative pointings,
in the sense B->W, of
- (-1.7",-12.0") from Venus and Mars at the 'start'
- (+0.2",-11.2") on 16293-2422 at ~23:00 HST, and
- (+0.7", -12.2") from the B-W-B sequence on Uranus at the end.
Giving most weight to the last set we adopt (+0.5", -12.0") as (round)
working values. 16 RxB pointing data from UT20040608 give mean values of
(uaz,uel) of (0.1+2.5", 1.2+1.3"), allowing
the collimations for RxB and RxW to be adjusted so as to
yield future offsets of (0,0) for each.
Iain Coulson
Latest Update : 08 Jun 2004
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