Update for (441) Bathilde - January 10/11, 2003
Preliminary update computed by Jan Manek; issued 26 Dec 2002 14:15:00 +0100 (CET)
Jan Manek's update
IOTA/IOTA-ES occultation update for
(441) Bathilde / TYC 0231-00635-1 = SAO 117679 on January 10/11, 2003
visible from S Russia, Crimean peninsula, Romania, fr,.Yugoslavia,
mid-north Italy, S France, N Spain, S USA and NW Mexico
Summary
In the night of January 10/11, 2002 a bright 7.7 mag star TYC 0231-00063-1 = SAO 117679
will be occulted by a 73 km asteroid (441) Bathilde. This update is based on
USNO/Flagstaff and TMO astrometry for the asteroid and Tycho-2 star position.
The updated path shows ~6 path width south shift with time 1.9 minutes later compared to
Edwin Goffin's nominal prediction.
Updated path runs over S Russia ~3:37.8 UT with Stavropol and Krasnodar in path, Crimean peninsula ~3:38.4 UT,
Romania ~3:39 UT with Bucharest in path, frm.Yugoslavia ~3:40 UT with Belgrade in path, mid-north Italy ~3:40.8 UT,
S France ~3:41.8 UT with Nice and Marseilles in path while Toulouse and Pic du Midi are on limits.
Follows N Spain ~3:43 UT barely on limit is N Portugal. After crossing Atlantic ocean path runs over S USA 3:55-3:58 UT
and NW Mexico ~3:58 UT.
Please check the path chart for details.
Clear sky and good luck !!!
The event at one glimpse:
* date and approx. UT time of event: January 11, 2002 @ 03:40 UT (Europe)
03:57 UT (USA)
* magnitude of target star: 7.7
* magnitude drop [mag]: 4.8
* estimated maximum duration [s]: 9.1
* path description: given above
* Goffin's original chart reference: A03_0140
The occultation path:
* approximate ground width [km]: 90
* uncertainty [path widths]: 1.1
* uncertainty in time [s]: 10
* map: below
* remarks: Path uncertainties are given according to nominal star
position errors and expected asteroid positional accuracy.
Data for the target star:
* name: TYC 0231-00063-1 = PPM 155817 = SAO 117679
* constellation: Hydra
* J2000 position [h,m,s; o,',"]: 09h 25m 22.4952s; +04o 17' 08.052"
* position source: Tycho-2
* estimated accuracy ["]: 0.03" (0.02", 0.02")
* V mag [mag]: 7.71
* B-V [mag]: +0.26
* remarks:
Target star is in Hydra, about 13 degrees southwest of 1.4 mag star alpha Leonis = Regulus = SAO 98967.
Closer is 3.9 mag star theta Hydrae about 3.4 degrees SW of target. If you will be using larger telescope
please note there is 11-mag star 32" just north of target star.
!!! IMPORTANT !!!
Purple stars in identification chart are so called 'non-star' objects in GSC; in dense fields
the 'non-stars' are often real stars or blends of close pairs. Be careful about this.
Close finding chart (prepared in GUIDE7):
* occulted star is in center - labeled with cross
* field is 25x16 degrees
* limiting magnitude is 9.5
* labeled stars have indicated SAO numbers
* remarks: Second chart is 1x1 degree blowup for larger telescopes.
Data for the minor planet:
* general information:
number, name: (441) Bathilde
approx. diameter [km]: 73
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 95 USNO, 10 TMO
number of rejected observations: 9 USNO, 1 TMO
time covered by the observations: 1998 02 12 - 2002 12 22
rms residuals ["] (RA,DE): 0.07", 0.07"
estimated positional accuracy at epoch of event ["]: 0.05", 0.05"
remarks:
Data for the event:
* UT date and time of least geocentric approach: 03:47.5 UT
* approx. V mag of minor planet at event [mag]: 12.5
* geocentric parallax of minor planet ["]: 5.077
* magnitude drop [mag]: 4.8
* estimated maximum duration [s]: 9.1
* apparent motion of minor planet ["/h]: 23.11
* angular distance to moon, phase of moon [deg,%]: 114, 56%
* remarks:
Elements for WinOccult:
============ cut here ===========================================
2003 Jan 11
441 Bathilde
3h 47.5m UT
31-00063-1 7.7 9 25 22.495 4 17 8.05TYC 0231-00063-1
12.5 73 9.1 1.732 -1.530 -3.30
-25.772 4.287 125.06 -21.87
3.7911 -.08274 .57290 -4.50400 -0.65204 -0.00264 0.00183
2000 27.44967932003 1 1.00000202.352869253.9474858.142159 0.083113862.807338092.574009388.515 0.15
RATE 2.0953762 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000
============ cut here ===========================================
Calculator(s): Jan Manek
Path coordinates:
Center Altitude Path Limits
E. Longitude Latitude U.T. star sun Limit 1 Limit 2
........................... shortened .............................
o ' " o ' " h m s o o o ' " o ' "
Latitude Latitude
53 0 0 44 41 15 3 37 9 13 -5 45 5 33 44 17 4
52 0 0 44 43 7 3 37 12 14 -6 45 7 25 44 18 56
51 0 0 44 44 51 3 37 15 14 -6 45 9 9 44 20 40
50 0 0 44 46 26 3 37 18 15 -7 45 10 44 44 22 15
49 0 0 44 47 52 3 37 21 16 -8 45 12 10 44 23 41
48 0 0 44 49 10 3 37 24 16 -8 45 13 28 44 24 59
47 0 0 44 50 19 3 37 28 17 -9 45 14 37 44 26 8
46 0 0 44 51 19 3 37 31 18 -9 45 15 37 44 27 9
45 0 0 44 52 11 3 37 35 18 -10 45 16 29 44 28 0
44 0 0 44 52 54 3 37 39 19 -11 45 17 12 44 28 44
43 0 0 44 53 29 3 37 42 20 -11 45 17 47 44 29 18
42 0 0 44 53 55 3 37 47 20 -12 45 18 13 44 29 44
41 0 0 44 54 13 3 37 51 21 -13 45 18 31 44 30 2
40 0 0 44 54 22 3 37 55 22 -13 45 18 40 44 30 11
39 0 0 44 54 22 3 37 59 22 -14 45 18 41 44 30 11
38 0 0 44 54 14 3 38 4 23 -15 45 18 33 44 30 3
37 0 0 44 53 58 3 38 9 24 -15 45 18 17 44 29 46
36 0 0 44 53 33 3 38 13 24 -16 45 17 52 44 29 21
35 0 0 44 52 59 3 38 18 25 -17 45 17 18 44 28 48
34 0 0 44 52 17 3 38 23 26 -17 45 16 36 44 28 5
33 0 0 44 51 27 3 38 29 26 -18 45 15 46 44 27 15
32 0 0 44 50 28 3 38 34 27 -19 45 14 48 44 26 16
31 0 0 44 49 21 3 38 39 28 -19 45 13 41 44 25 8
30 0 0 44 48 5 3 38 45 28 -20 45 12 25 44 23 53
29 0 0 44 46 41 3 38 50 29 -21 45 11 1 44 22 28
28 0 0 44 45 9 3 38 56 30 -21 45 9 29 44 20 56
27 0 0 44 43 28 3 39 2 30 -22 45 7 49 44 19 15
26 0 0 44 41 39 3 39 8 31 -23 45 6 0 44 17 26
25 0 0 44 39 42 3 39 14 31 -24 45 4 4 44 15 28
24 0 0 44 37 37 3 39 20 32 -24 45 1 58 44 13 23
23 0 0 44 35 23 3 39 27 33 -25 44 59 45 44 11 9
22 0 0 44 33 1 3 39 33 33 -26 44 57 24 44 8 47
21 0 0 44 30 32 3 39 40 34 -26 44 54 54 44 6 16
20 0 0 44 27 54 3 39 46 35 -27 44 52 17 44 3 38
19 0 0 44 25 8 3 39 53 35 -28 44 49 31 44 0 52
18 0 0 44 22 13 3 39 60 36 -28 44 46 37 43 57 57
17 0 0 44 19 11 3 40 7 36 -29 44 43 35 43 54 55
16 0 0 44 16 1 3 40 14 37 -30 44 40 26 43 51 44
15 0 0 44 12 43 3 40 21 37 -30 44 37 8 43 48 26
14 0 0 44 9 17 3 40 28 38 -31 44 33 43 43 44 59
13 0 0 44 5 44 3 40 36 39 -32 44 30 9 43 41 25
12 0 0 44 2 2 3 40 43 39 -33 44 26 28 43 37 43
11 0 0 43 58 13 3 40 51 40 -33 44 22 39 43 33 54
10 0 0 43 54 16 3 40 58 40 -34 44 18 43 43 29 56
9 0 0 43 50 11 3 41 6 41 -35 44 14 38 43 25 51
8 0 0 43 45 59 3 41 14 41 -35 44 10 26 43 21 38
7 0 0 43 41 39 3 41 22 42 -36 44 6 7 43 17 18
6 0 0 43 37 11 3 41 30 43 -37 44 1 40 43 12 50
5 0 0 43 32 36 3 41 38 43 -37 43 57 5 43 8 15
4 0 0 43 27 54 3 41 46 44 -38 43 52 23 43 3 32
3 0 0 43 23 4 3 41 55 44 -39 43 47 34 42 58 42
2 0 0 43 18 7 3 42 3 45 -40 43 42 38 42 53 44
1 0 0 43 13 3 3 42 11 45 -40 43 37 34 42 48 40
0 0 0 43 7 52 3 42 20 46 -41 43 32 23 42 43 28
- 1 0 0 43 2 33 3 42 29 46 -42 43 27 5 42 38 9
- 2 0 0 42 57 7 3 42 37 47 -42 43 21 39 42 32 43
- 3 0 0 42 51 34 3 42 46 47 -43 43 16 7 42 27 9
- 4 0 0 42 45 55 3 42 55 47 -44 43 10 28 42 21 29
- 5 0 0 42 40 8 3 43 4 48 -45 43 4 42 42 15 42
- 6 0 0 42 34 15 3 43 13 48 -45 42 58 49 42 9 48
- 7 0 0 42 28 15 3 43 22 49 -46 42 52 49 42 3 48
- 8 0 0 42 22 8 3 43 31 49 -47 42 46 43 41 57 41
- 9 0 0 42 15 55 3 43 41 50 -47 42 40 30 41 51 27
- 10 0 0 42 9 35 3 43 50 50 -48 42 34 10 41 45 7
- 11 0 0 42 3 8 3 43 59 50 -49 42 27 44 41 38 40
- 12 0 0 41 56 36 3 44 9 51 -50 42 21 12 41 32 7
........................... shortened .............................
- 74 0 0 32 58 59 3 54 29 38 -71 33 23 39 32 34 26
- 75 0 0 32 49 43 3 54 37 37 -70 33 14 23 32 25 11
- 76 0 0 32 40 30 3 54 46 37 -70 33 5 9 32 15 58
- 77 0 0 32 31 19 3 54 54 36 -69 32 55 58 32 6 48
- 78 0 0 32 22 11 3 55 2 35 -68 32 46 50 31 57 40
- 79 0 0 32 13 6 3 55 10 35 -68 32 37 45 31 48 36
- 80 0 0 32 4 4 3 55 18 34 -67 32 28 42 31 39 34
- 81 0 0 31 55 5 3 55 26 33 -66 32 19 43 31 30 35
- 82 0 0 31 46 10 3 55 34 32 -66 32 10 47 31 21 40
- 83 0 0 31 37 18 3 55 41 32 -65 32 1 55 31 12 49
- 84 0 0 31 28 30 3 55 49 31 -64 31 53 6 31 4 1
- 85 0 0 31 19 45 3 55 56 30 -63 31 44 21 30 55 17
- 86 0 0 31 11 5 3 56 3 29 -63 31 35 41 30 46 37
- 87 0 0 31 2 29 3 56 10 29 -62 31 27 4 30 38 2
- 88 0 0 30 53 58 3 56 17 28 -61 31 18 32 30 29 31
- 89 0 0 30 45 31 3 56 23 27 -60 31 10 5 30 21 4
- 90 0 0 30 37 9 3 56 30 26 -59 31 1 43 30 12 42
- 91 0 0 30 28 52 3 56 36 25 -59 30 53 25 30 4 26
- 92 0 0 30 20 40 3 56 42 25 -58 30 45 13 29 56 14
- 93 0 0 30 12 33 3 56 48 24 -57 30 37 6 29 48 8
- 94 0 0 30 4 32 3 56 54 23 -56 30 29 4 29 40 7
- 95 0 0 29 56 37 3 56 59 22 -55 30 21 8 29 32 12
- 96 0 0 29 48 47 3 57 5 21 -54 30 13 18 29 24 23
- 97 0 0 29 41 3 3 57 10 20 -54 30 5 34 29 16 40
- 98 0 0 29 33 26 3 57 15 20 -53 29 57 56 29 9 3
- 99 0 0 29 25 55 3 57 20 19 -52 29 50 25 29 1 32
-100 0 0 29 18 30 3 57 24 18 -51 29 42 60 28 54 8
-101 0 0 29 11 12 3 57 29 17 -50 29 35 42 28 46 50
-102 0 0 29 4 1 3 57 33 16 -49 29 28 30 28 39 40
-103 0 0 28 56 57 3 57 37 15 -48 29 21 26 28 32 36
-104 0 0 28 50 0 3 57 41 15 -48 29 14 28 28 25 40
-105 0 0 28 43 11 3 57 44 14 -47 29 7 39 28 18 50
-106 0 0 28 36 29 3 57 48 13 -46 29 0 56 28 12 9
-107 0 0 28 29 54 3 57 51 12 -45 28 54 21 28 5 35
-108 0 0 28 23 28 3 57 54 11 -44 28 47 54 27 59 8
-109 0 0 28 17 9 3 57 57 10 -43 28 41 35 27 52 50
-110 0 0 28 10 59 3 57 59 9 -42 28 35 24 27 46 40
-111 0 0 28 4 56 3 58 2 9 -42 28 29 22 27 40 38
-112 0 0 27 59 2 3 58 4 8 -41 28 23 28 27 34 45
-113 0 0 27 53 17 3 58 6 7 -40 28 17 42 27 28 60
-114 0 0 27 47 40 3 58 7 6 -39 28 12 5 27 23 23
-115 0 0 27 42 13 3 58 9 5 -38 28 6 37 27 17 56
-116 0 0 27 36 54 3 58 10 4 -37 28 1 18 27 12 37
-117 0 0 27 31 44 3 58 11 3 -36 27 56 8 27 7 28
........................... 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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