Update for (795) Fini - December 18/19, 2002
Update computed by Jan Manek; issued 18 Dec 2002 00:45:00 +0100 (CET)
Jan Manek's update
IOTA/IOTA-ES occultation update for
(795) Fini / HIP 41137 = SAO 42329 on December 18/19, 2002
visible from Kuril Islands, Sakhalin, Siberia, N Russia, Baltic republics,
Poland, Czechia, SE Germany, W Austria and NW Italy
Summary
In the night of December 18/19, 2002 a 9.0 mag star HIP 41137 = SAO 42329
will be occulted by a 79 km asteroid (795) Fini. This update is based on
USNO/Flagstaff and TMO astrometry for the asteroid and Hipparcos star position.
The updated path shows ~1 path width south shift with no time correction compared to
Edwin Goffin's nominal prediction.
Updated path runs over Kuril Islands ~17:26 UT, Sakhalin ~17:27 UT, Siberia 17:28 to 17:34 UT,
N Russia ~17:35 UT with St.Petersburg on north limit ~17:36 UT, Baltic republics around 17:36.4 UT,
Poland ~17:36.8 UT, Czechia with Prague ~17:37.0 UT, SE Germany, W Austria and NW Italy around 17:37.3 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: December 18, 2002 @ 17:37 UT (Europe)
* magnitude of target star: 9.0
* magnitude drop [mag]: 5.1
* estimated maximum duration [s]: 7.6
* path description: given above
* Goffin's original chart reference: A02_1262
The occultation path:
* approximate ground width [km]: 80
* uncertainty [path widths]: 1.4
* uncertainty in time [s]: 9
* map: below
* remarks: Path uncertainties are given according to nominal star
position errors and expected asteroid positional accuracy.
Data for the target star:
* name: HIP 41137 = SAO 42329 = PPM 50543
* constellation: Lynx
* J2000 position [h,m,s; o,',"]: 08h 23m 36.8749s; +47o 52' 32.750"
* position source: Hipparcos
* estimated accuracy ["]: 0.03" (0.23", 0.15")
* V mag [mag]: 9.03
* B-V [mag]: +0.53
* remarks:
Target star is in middle Lynx, about 6 degrees west of 3.1 mag star iota Ursa Maioris = SAO 42630.
!!! 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 3.0x3.0 degrees
* limiting magnitude is 12.5
* labeled stars have indicated SAO numbers
* remarks:
Data for the minor planet:
* general information:
number, name: (795) Fini
approx. diameter [km]: 79
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 81 USNO, 13 TMO
number of rejected observations: 22 USNO
time covered by the observations: 1998 12 27 - 2002 12 10
rms residuals ["] (RA,DE): 0.08", 0.08"
estimated positional accuracy at epoch of event ["]: 0.05", 0.05"
remarks:
Data for the event:
* UT date and time of least geocentric approach: 17:27.4 UT
* approx. V mag of minor planet at event [mag]: 14.1
* geocentric parallax of minor planet ["]: 4.517
* magnitude drop [mag]: 5.1
* estimated maximum duration [s]: 7.6
* apparent motion of minor planet ["/h]: 26.50
* angular distance to moon, phase of moon [deg,%]: 49, 99%
* remarks:
Elements for WinOccult:
============ cut here ===========================================
2002 Dec 18
795 Fini
17h 27.4m UT
HIP 41137 9.0 8 23 36.875 47 52 32.75
14.1 79 7.6 1.947 -1.716 20.13
-223.113 47.870 -82.69 -23.40
17.4574 .04893 .04167 -3.81620 4.45628 -0.00346 -0.00153
2000 269.34455520021212.00000188.76307417.572346 19.019516 0.099903882.751700972.476795379.695 0.15
RATE 2.1592470 .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
151 0 0 40 55 49 17 25 26 78 -42 41 35 5 40 16 37
150 0 0 42 4 33 17 25 40 79 -43 42 43 18 41 25 53
149 0 0 43 10 46 17 25 53 80 -44 43 48 59 42 32 38
148 0 0 44 14 32 17 26 7 81 -44 44 52 14 43 36 55
147 0 0 45 15 55 17 26 20 82 -45 45 53 5 44 38 49
146 0 0 46 14 59 17 26 32 83 -45 46 51 37 45 38 24
145 0 0 47 11 47 17 26 45 84 -45 47 47 55 46 35 43
144 0 0 48 6 25 17 26 57 84 -46 48 42 2 47 30 51
143 0 0 48 58 56 17 27 8 85 -46 49 34 3 48 23 52
142 0 0 49 49 25 17 27 19 85 -46 50 24 3 49 14 50
141 0 0 50 37 56 17 27 30 85 -47 51 12 5 50 3 50
140 0 0 51 24 33 17 27 41 85 -47 51 58 14 50 50 56
139 0 0 52 9 21 17 27 51 84 -47 52 42 34 51 36 12
138 0 0 52 52 24 17 28 1 84 -47 53 25 9 52 19 42
137 0 0 53 33 45 17 28 10 83 -48 54 6 3 53 1 30
136 0 0 54 13 29 17 28 20 83 -48 54 45 21 53 41 39
135 0 0 54 51 39 17 28 29 82 -48 55 23 6 54 20 15
134 0 0 55 28 20 17 28 38 81 -48 55 59 21 54 57 20
133 0 0 56 3 33 17 28 46 81 -48 56 34 11 55 32 58
132 0 0 56 37 24 17 28 54 80 -48 57 7 38 56 7 12
131 0 0 57 9 55 17 29 2 80 -48 57 39 46 56 40 6
........................... shortened .............................
45 0 0 64 28 34 17 35 0 42 -38 64 52 50 64 4 19
44 0 0 64 14 9 17 35 4 41 -37 64 38 37 63 49 42
43 0 0 63 59 5 17 35 7 41 -37 64 23 45 63 34 26
42 0 0 63 43 21 17 35 11 40 -37 64 8 15 63 18 29
41 0 0 63 26 57 17 35 15 40 -36 63 52 4 63 1 51
40 0 0 63 9 49 17 35 18 39 -36 63 35 10 62 44 29
39 0 0 62 51 58 17 35 22 39 -36 63 17 34 62 26 24
38 0 0 62 33 21 17 35 25 38 -35 62 59 12 62 7 31
37 0 0 62 13 56 17 35 29 38 -35 62 40 3 61 47 51
36 0 0 61 53 42 17 35 33 37 -35 62 20 5 61 27 20
35 0 0 61 32 37 17 35 37 36 -34 61 59 16 61 5 58
34 0 0 61 10 38 17 35 41 36 -34 61 37 35 60 43 42
33 0 0 60 47 43 17 35 44 35 -34 61 14 59 60 20 29
32 0 0 60 23 51 17 35 48 35 -33 60 51 25 59 56 18
31 0 0 59 58 58 17 35 52 34 -33 60 26 52 59 31 6
30 0 0 59 33 3 17 35 56 33 -32 60 1 17 59 4 50
29 0 0 59 6 2 17 36 0 33 -32 59 34 37 58 37 28
28 0 0 58 37 53 17 36 4 32 -32 59 6 49 58 8 57
27 0 0 58 8 32 17 36 8 31 -31 58 37 51 57 39 14
26 0 0 57 37 57 17 36 12 31 -31 58 7 39 57 8 16
25 0 0 57 6 4 17 36 16 30 -30 57 36 10 56 35 59
24 0 0 56 32 49 17 36 20 29 -30 57 3 20 56 2 20
23 0 0 55 58 10 17 36 24 28 -29 56 29 6 55 27 15
22 0 0 55 22 1 17 36 29 27 -29 55 53 24 54 50 40
21 0 0 54 44 20 17 36 33 27 -28 55 16 10 54 12 31
20 0 0 54 5 1 17 36 37 26 -27 54 37 20 53 32 44
19 0 0 53 24 1 17 36 41 25 -27 53 56 49 52 51 15
18 0 0 52 41 14 17 36 45 24 -26 53 14 32 52 7 59
17 0 0 51 56 37 17 36 49 23 -25 52 30 25 51 22 50
16 0 0 51 10 2 17 36 53 22 -25 51 44 23 50 35 44
15 0 0 50 21 27 17 36 57 21 -24 50 56 20 49 46 35
14 0 0 49 30 44 17 37 1 20 -23 50 6 10 48 55 19
13 0 0 48 37 48 17 37 5 19 -22 49 13 49 48 1 49
12 0 0 47 42 33 17 37 9 18 -22 48 19 10 47 5 59
11 0 0 46 44 54 17 37 13 16 -21 47 22 7 46 7 43
10 0 0 45 44 44 17 37 16 15 -20 46 22 34 45 6 56
9 0 0 44 41 57 17 37 20 14 -19 45 20 25 44 3 31
8 0 0 43 36 26 17 37 23 13 -18 44 15 34 42 57 21
7 0 0 42 28 6 17 37 26 11 -17 43 7 53 41 48 21
6 0 0 41 16 50 17 37 29 10 -16 41 57 17 40 36 25
5 0 0 40 2 31 17 37 31 9 -15 40 43 40 39 21 25
4 0 0 38 45 5 17 37 34 7 -14 39 26 55 38 3 17
3 0 0 37 24 24 17 37 36 5 -13 38 6 56 36 41 55
........................... 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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