Update for (752) Sulamitis - November 20, 2000
Update computed by Jan Manek; issued 16 Nov 2000 15:18:20 +0100 (CET)
Jan Manek's update
IOTA/IOTA-ES occultation update for
(752) Sulamitis / mu Gem = HIP 30343 event on November 20, 2000
visible from NE USA, western Canada and Alaska
Summary
In the night of November 20, 2000 a 2.9 mag red giant variable star mu Geminorum
= SAO 78297 will be occulted by a 66 km asteroid (752) Sulamitis. This update is based
on USNO (Flagstaff+Cerro Tololo), Table Mountain Observatory and St.Andrew astrometry
for the asteroid provided kindly by Ron Stone, Norbert Zacharias, Bill Owen and Fiona
Vincent respectively and Hipparcos star position.
The updated path shows ~1.7 path width north shift with time 0.2 minutes later
compared to nominal prediction and path shown in Sky&Telescope February 2000 issue.
Other update information can be found here.
For path details look at attached charts - path is greyed. Event will not be instant;
disappearance and reappearance can take up to 3 seconds. Extremely favoured event.
Good weather and good luck !
The event at one glimpse:
* date and approx. UT time of event: November 20, 2000 @ 11:43 UT (NE USA)
* magnitude of target star: 2.9
* magnitude drop [mag]: 10.6
* estimated maximum duration [s]: 13.1
* path description: given above
* Goffin's original chart reference: A00_1120
The occultation path:
* approximate ground width [km]: 90
* uncertainty [path widths]: 1.1
* uncertainty in time [s]: 20
* map: below
* remarks: Path uncertainities are given according to nominal star
position errors and expected asteroid positional accuracy.
!!!!!!!
Circles along path indicates the centerline for this event.
They are more accurate than the path limit lines.
!!!!!!!
Data for the target star:
* name: mu Gem = HIP 30343 = SAO 78297 = PPM 95868 = TYC 1878-01429-1
* constellation: Gemini
* J2000 position [h,m,s; o,',"]: 06h 22m 57.631s; +22o 30' 48.81"
* position source: Hipparcos
* estimated accuracy ["]: 0.01" (0.01", 0.01")
* V mag [mag]: 2.89
* B-V [mag]: +1.65
* remarks:
Target star is in western Gemini, well known red variable in the
'foots' of constellation Gemini = Twins.
Data for the minor planet:
* general information:
number, name: (752) Sulamitis
approx. diameter [km]: 66
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone),
USNO/Cerro Tololo (Norbert Zacharias),
JPL/TMO (Bill Owen),
St.Andrew (Fiona Vincent)
number of used observations: 57 USNO/F, 24 USNO/CT, 9 TMO, 12(3)St.A
number of rejected observations: 8 USNO, 4 USNO/CT, 3 TMO, 8(2)St.A
time covered by the observations: 1998 02 12 - 2000 11 14
rms residuals ["] (RA,DE): 0.10", 0.08"
estimated positional accuracy at epoch of event ["]: 0.06"
remarks: St.Andrew positions were grouped into mean position, other
were treated as-is.
Data for the event:
* UT date and time of least geocentric approach: 11:50.5 UT
* approx. V mag of minor planet at event [mag]: 13.5
* geocentric parallax of minor planet ["]: 6.145
* magnitude drop [mag]: 10.6
* estimated maximum duration [s]: 24.0
* apparent motion of minor planet ["/h]: 17.52
* angular distance to moon, phase of moon [deg,%]: 75, 32%
* remarks:
Calculator(s): Jan Manek
Path coordinates:
Altitude
E. Longitude Latitude U.T. star sun
........ shortened ..........................
o ' " o ' " h m s o o
- 75 0 0 34 36 59 11 39 38 33 -1
- 76 0 0 35 17 25 11 39 54 34 -2
- 77 0 0 35 57 57 11 40 11 35 -3
- 78 0 0 36 38 35 11 40 28 36 -4
- 79 0 0 37 19 16 11 40 46 37 -4
- 80 0 0 37 59 59 11 41 3 37 -5
- 81 0 0 38 40 43 11 41 21 38 -6
- 82 0 0 39 21 27 11 41 39 39 -7
- 83 0 0 40 2 8 11 41 57 39 -8
- 84 0 0 40 42 46 11 42 16 40 -9
- 85 0 0 41 23 18 11 42 34 41 -10
- 86 0 0 42 3 44 11 42 53 41 -11
- 87 0 0 42 44 3 11 43 11 42 -12
- 88 0 0 43 24 11 11 43 30 43 -12
- 89 0 0 44 4 9 11 43 49 43 -13
- 90 0 0 44 43 54 11 44 8 44 -14
- 91 0 0 45 23 26 11 44 27 44 -15
- 92 0 0 46 2 43 11 44 45 45 -16
- 93 0 0 46 41 43 11 45 4 45 -16
- 94 0 0 47 20 25 11 45 23 45 -17
- 95 0 0 47 58 48 11 45 42 46 -18
- 96 0 0 48 36 51 11 46 0 46 -19
- 97 0 0 49 14 33 11 46 19 47 -19
- 98 0 0 49 51 52 11 46 37 47 -20
- 99 0 0 50 28 46 11 46 56 47 -21
-100 0 0 51 5 16 11 47 14 47 -21
-101 0 0 51 41 20 11 47 32 48 -22
-102 0 0 52 16 57 11 47 50 48 -22
-103 0 0 52 52 6 11 48 7 48 -23
-104 0 0 53 26 46 11 48 25 48 -24
-105 0 0 54 0 57 11 48 42 48 -24
-106 0 0 54 34 37 11 48 59 48 -25
-107 0 0 55 7 46 11 49 16 49 -25
-108 0 0 55 40 24 11 49 33 49 -26
-109 0 0 56 12 29 11 49 50 49 -26
-110 0 0 56 44 2 11 50 6 49 -27
-111 0 0 57 15 1 11 50 22 49 -27
-112 0 0 57 45 27 11 50 38 49 -28
-113 0 0 58 15 18 11 50 53 49 -28
-114 0 0 58 44 36 11 51 8 49 -28
-115 0 0 59 13 19 11 51 23 49 -29
-116 0 0 59 41 27 11 51 38 49 -29
-117 0 0 60 9 1 11 51 52 48 -30
-118 0 0 60 35 60 11 52 7 48 -30
-119 0 0 61 2 24 11 52 21 48 -30
-120 0 0 61 28 14 11 52 34 48 -31
-121 0 0 61 53 29 11 52 48 48 -31
-122 0 0 62 18 10 11 53 1 48 -31
-123 0 0 62 42 17 11 53 14 48 -32
-124 0 0 63 5 49 11 53 26 48 -32
-125 0 0 63 28 48 11 53 39 47 -32
-126 0 0 63 51 14 11 53 51 47 -32
-127 0 0 64 13 7 11 54 3 47 -33
-128 0 0 64 34 27 11 54 15 47 -33
-129 0 0 64 55 14 11 54 26 47 -33
-130 0 0 65 15 30 11 54 37 46 -33
-131 0 0 65 35 15 11 54 48 46 -33
-132 0 0 65 54 28 11 54 59 46 -34
-133 0 0 66 13 11 11 55 9 46 -34
-134 0 0 66 31 24 11 55 20 46 -34
-135 0 0 66 49 7 11 55 30 45 -34
-136 0 0 67 6 21 11 55 40 45 -34
-137 0 0 67 23 7 11 55 49 45 -34
-138 0 0 67 39 25 11 55 59 45 -35
-139 0 0 67 55 15 11 56 8 44 -35
-140 0 0 68 10 38 11 56 17 44 -35
-141 0 0 68 25 35 11 56 26 44 -35
-142 0 0 68 40 6 11 56 35 44 -35
-143 0 0 68 54 11 11 56 43 44 -35
-144 0 0 69 7 52 11 56 52 43 -35
-145 0 0 69 21 7 11 57 0 43 -35
-146 0 0 69 33 59 11 57 8 43 -35
-147 0 0 69 46 28 11 57 16 43 -36
-148 0 0 69 58 34 11 57 24 42 -36
-149 0 0 70 10 17 11 57 31 42 -36
-150 0 0 70 21 38 11 57 39 42 -36
-151 0 0 70 32 37 11 57 46 42 -36
-152 0 0 70 43 16 11 57 53 42 -36
-153 0 0 70 53 33 11 58 0 41 -36
-154 0 0 71 3 31 11 58 7 41 -36
-155 0 0 71 13 8 11 58 14 41 -36
-156 0 0 71 22 26 11 58 21 41 -36
-157 0 0 71 31 26 11 58 27 40 -36
-158 0 0 71 40 6 11 58 34 40 -36
-159 0 0 71 48 28 11 58 40 40 -36
-160 0 0 71 56 33 11 58 46 40 -36
-161 0 0 72 4 19 11 58 52 39 -36
-162 0 0 72 11 49 11 58 58 39 -36
-163 0 0 72 19 1 11 59 4 39 -36
-164 0 0 72 25 57 11 59 10 39 -36
-165 0 0 72 32 37 11 59 16 39 -36
-166 0 0 72 39 1 11 59 22 38 -36
-167 0 0 72 45 9 11 59 27 38 -36
-168 0 0 72 51 1 11 59 33 38 -36
-169 0 0 72 56 39 11 59 38 38 -36
-170 0 0 73 2 1 11 59 44 37 -36
-171 0 0 73 7 9 11 59 49 37 -36
-172 0 0 73 12 2 11 59 54 37 -36
-173 0 0 73 16 41 11 59 59 37 -36
-174 0 0 73 21 6 12 0 5 37 -36
-175 0 0 73 25 18 12 0 10 36 -36
-176 0 0 73 29 15 12 0 15 36 -36
-177 0 0 73 32 59 12 0 20 36 -36
-178 0 0 73 36 30 12 0 24 36 -36
-179 0 0 73 39 47 12 0 29 35 -36
-180 0 0 73 42 51 12 0 34 35 -36
........ shortened ..........................
----------------------------------------------------------------------------
Jan Manek
Stefanik Observatory Private :
Petrin 205 Werichova 950
118 46 Praha 1 152 00 Praha 5 - Barrandov |_|_|
Czech Republic Czech Republic / \
Internet : jan.manek@worldonline.cz |-O-O-|
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