Subject: 1116 Catriona occultation
Date: Mon, Feb 2, 1998 10:56PM
Dear all,
I received 19 observations of 1116 Catriona made at the USNO Flagstaff
station by Ron Stone. They were added to the observations I have, and
a new orbit was computed.
I consider this as the reference orbit for the Beta Aurigae occultation
that will take place in 12 days. All new observations will be considered
as last-minute observations and used to compute a differential correction.
The PostScript file of the occultation, computed with the reference
orbit will be sent to you also. The new prediction differs barely from
the previous one.
Below I give the position of shadow track at 10-second intervals. The
longitude is counted positive to the WEST. The computation does NOT take
into account the effects of refraction, which might be of importance
for South-African observers (Danie). I hope someone can provide an
independent check.
Best regards,
Edwin
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1116 Catriona occultation of Beta Aurigae on 1998 Feb 14
Shadow trajectory : Geographic A l t i t u d e
longit. latit. star Sun Moon
h m s 0 0 0 0 0
18 11 40 87.2888 27.6454 1.0 49.4 -47.5
18 11 50 80.7384 33.8454 9.4 42.5 -47.4
18 12 0 77.2315 36.4143 13.2 39.4 -47.2
18 12 10 74.2969 38.2453 16.2 36.9 -46.9
18 12 20 71.6507 39.6808 18.7 34.8 -46.6
18 12 30 69.1851 40.8549 20.9 33.0 -46.3
18 12 40 66.8464 41.8365 22.9 31.4 -45.9
18 12 50 64.6040 42.6672 24.7 29.9 -45.6
18 13 0 62.4387 43.3741 26.4 28.5 -45.3
18 13 10 60.3382 43.9763 28.0 27.1 -44.9
18 13 20 58.2940 44.4879 29.5 25.9 -44.6
18 13 30 56.3004 44.9196 31.0 24.7 -44.2
18 13 40 54.3533 45.2800 32.3 23.6 -43.9
18 13 50 52.4498 45.5759 33.6 22.5 -43.5
18 14 0 50.5878 45.8131 34.9 21.4 -43.2
18 15 0 40.2308 46.2324 41.6 15.8 -41.1
18 16 10 29.8150 45.1178 47.9 10.3 -38.7
18 17 30 19.9410 42.4292 53.8 4.9 -36.0
18 19 0 11.0519 38.1946 58.5 -0.4 -33.0
18 19 10 10.1883 37.6638 58.9 -0.9 -32.7
18 19 20 9.3470 37.1225 59.3 -1.5 -32.4
18 19 30 8.5273 36.5710 59.7 -2.0 -32.0
18 19 40 7.7286 36.0098 60.0 -2.5 -31.7
18 19 50 6.9501 35.4390 60.3 -3.0 -31.4
18 20 0 6.1914 34.8590 60.6 -3.5 -31.1
18 20 10 5.4517 34.2700 60.8 -4.0 -30.7
18 20 20 4.7305 33.6722 61.0 -4.5 -30.4
18 20 30 4.0273 33.0658 61.2 -5.0 -30.1
18 20 40 3.3413 32.4510 61.3 -5.5 -29.8
18 20 50 2.6721 31.8279 61.4 -5.9 -29.4
18 21 0 2.0192 31.1966 61.5 -6.4 -29.1
18 21 10 1.3820 30.5574 61.6 -6.8 -28.8
18 21 20 0.7602 29.9102 61.6 -7.3 -28.5
18 21 30 0.1530 29.2553 61.6 -7.7 -28.1
18 21 40 -0.4399 28.5925 61.6 -8.1 -27.8
18 22 0 -1.5845 27.2439 61.4 -9.0 -27.2
18 22 30 -3.2053 25.1634 60.9 -10.2 -26.2
18 23 0 -4.7198 23.0131 60.2 -11.3 -25.3
18 23 30 -6.1379 20.7914 59.2 -12.3 -24.3
18 24 0 -7.4682 18.4948 57.9 -13.3 -23.4
18 24 30 -8.7184 16.1186 56.4 -14.2 -22.4
18 25 0 -9.8957 13.6562 54.7 -15.0 -21.5
18 25 30 -11.0060 11.0989 52.8 -15.8 -20.5
18 26 0 -12.0551 8.4353 50.7 -16.4 -19.6
18 26 30 -13.0476 5.6506 48.4 -16.9 -18.6
18 27 0 -13.9879 2.7252 45.9 -17.4 -17.7
18 27 30 -14.8792 -0.3673 43.1 -17.7 -16.8
18 28 0 -15.7241 -3.6631 40.1 -17.8 -15.8
18 28 30 -16.5237 -7.2147 36.8 -17.7 -14.8
18 29 0 -17.2769 -11.1018 33.1 -17.4 -13.9
18 29 30 -17.9784 -15.4560 28.9 -16.8 -12.9
18 29 40 -18.1985 -17.0484 27.4 -16.5 -12.6
18 29 50 -18.4102 -18.7321 25.7 -16.2 -12.2
18 30 0 -18.6119 -20.5262 24.0 -15.8 -11.9
18 30 10 -18.8011 -22.4570 22.1 -15.3 -11.5
18 30 20 -18.9742 -24.5638 20.0 -14.7 -11.2
18 30 30 -19.1244 -26.9082 17.7 -14.0 -10.8
18 30 40 -19.2392 -29.5998 15.1 -13.1 -10.5
18 30 50 -19.2896 -32.8713 11.8 -11.8 -10.1
18 31 0 -19.1750 -37.4649 7.2 -9.9 -9.7