Update for (200) Dynamene - March 13/14, 2003
Update computed by Jan Manek; issued 9 Mar 2003 15:29 +0100 (CET)
Jan Manek's update
IOTA/IOTA-ES occultation update for
(200) Dynamene / TYC 1804-01573-1 on March 13/14, 2003
visible from Norway, Sweden, SW Finland, Estonia, NE Latvia and Russia
Summary
In the night of March 13/14, 2003 a faint 11.1 mag star TYC 1804-01573-1
will be occulted by a 132 km asteroid (200) Dynamene. This update is based on
USNO/Flagstaff and TMO astrometry for the asteroid and recent UCAC star position.
The updated path shows ~2.5 path width north shift with time 0.1 minutes later compared to
Edwin Goffin's nominal prediction.
Updated path runs over middle Norway ~20:40.8 UT, middle Sweden ~20:40.9 UT, SW Finland ~20:41.1 UT
with Turku in path and Helsinki on north limit, Estonia ~20:41.2 UT, NE Latvia ~20:41.3 UT and
finally Russia around 20:41.4 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: March 13, 2003 @ 20:41 UT (Europe)
* magnitude of target star: 11.1
* magnitude drop [mag]: 2.3
* estimated maximum duration [s]: 4.5
* path description: given above
* Goffin's original chart reference: A03_0320
The occultation path:
* approximate ground width [km]: 190
* uncertainty [path widths]: 0.7
* uncertainty in time [s]: 4
* 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 1804-01573-1
* constellation: Taurus
* J2000 position [h,m,s; o,',"]: 03h 53m 42.9313s; +26o 00' 59.310"
* position source: recent UCAC position combined with Tycho-2 proper motion
* estimated accuracy ["]: 0.03" (0.02", 0.03")
* V mag [mag]: 11.06
* B-V [mag]: +0.87
* remarks:
Target star is in N Taurus, about 2.5 degrees NE of open cluster M45. Should be easy to find.
!!! 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 GUIDE8):
* occulted star is in center - labeled with cross
* field is 4.0x4.0 degrees
* limiting magnitude is 12.0
* labeled stars have indicated SAO numbers
* remarks: Second chart is 30' blowup to show correctly the target star in the field.
Data for the minor planet:
* general information:
number, name: (200) Dynamene
approx. diameter [km]: 132
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 107 USNO, 17 TMO
number of rejected observations: 11 USNO
time covered by the observations: 1998 11 03 - 2003 01 28
rms residuals ["] (RA,DE): 0.06", 0.08"
estimated positional accuracy at epoch of event ["]: 0.04", 0.04"
remarks:
Data for the event:
* UT date and time of least geocentric approach: 20:39.0 UT
* approx. V mag of minor planet at event [mag]: 13.3
* geocentric parallax of minor planet ["]: 3.389
* magnitude drop [mag]: 2.3
* estimated maximum duration [s]: 4.5
* apparent motion of minor planet ["/h]: 56.62
* angular distance to moon, phase of moon [deg,%]: 51, 75%
* remarks:
Elements for WinOccult:
============ cut here ===========================================
2003 Mar 13
200 Dynamene
20h 39.0m UT
04-01573-1 11.1 3 53 42.931 26 0 59.31TYC 1804-01573-1
13.3 132 4.5 2.595 4.178 5.85
-62.390 26.016 232.63 -2.83
20.6502 -.07341 .69615 16.62218 1.72552 0.00512 0.00130
2000 25.53006142003 312.0000085.833017 324.7752926.909801 0.131344312.737710142.378127488.265 0.15
RATE 2.1758196 .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
- 4 0 0 67 20 40 20 40 28 36 -15 66 25 6 68 17 14
- 3 0 0 67 8 47 20 40 29 35 -15 66 12 59 68 5 37
- 2 0 0 66 56 33 20 40 31 35 -16 66 0 30 67 53 39
- 1 0 0 66 43 58 20 40 32 35 -16 65 47 39 67 41 19
0 0 0 66 31 0 20 40 34 34 -17 65 34 26 67 28 38
1 0 0 66 17 40 20 40 35 34 -17 65 20 50 67 15 34
2 0 0 66 3 57 20 40 36 34 -18 65 6 52 67 2 7
3 0 0 65 49 51 20 40 38 33 -18 64 52 31 66 48 18
4 0 0 65 35 22 20 40 39 33 -19 64 37 46 66 34 5
5 0 0 65 20 29 20 40 40 33 -19 64 22 37 66 19 29
6 0 0 65 5 12 20 40 42 32 -20 64 7 4 66 4 28
7 0 0 64 49 30 20 40 43 32 -20 63 51 7 65 49 3
8 0 0 64 33 24 20 40 45 31 -21 63 34 44 65 33 14
9 0 0 64 16 52 20 40 46 31 -21 63 17 57 65 16 59
10 0 0 63 59 56 20 40 48 31 -22 63 0 45 65 0 19
11 0 0 63 42 33 20 40 49 30 -22 62 43 7 64 43 13
12 0 0 63 24 45 20 40 50 30 -23 62 25 3 64 25 41
13 0 0 63 6 30 20 40 52 29 -23 62 6 33 64 7 42
14 0 0 62 47 49 20 40 53 29 -24 61 47 37 63 49 17
15 0 0 62 28 41 20 40 55 28 -24 61 28 14 63 30 25
16 0 0 62 9 6 20 40 56 28 -25 61 8 24 63 11 5
17 0 0 61 49 3 20 40 58 27 -25 60 48 8 62 51 19
18 0 0 61 28 34 20 40 59 27 -26 60 27 24 62 31 4
19 0 0 61 7 37 20 41 0 26 -27 60 6 13 62 10 22
20 0 0 60 46 13 20 41 2 26 -27 59 44 35 61 49 12
21 0 0 60 24 20 20 41 3 25 -28 59 22 30 61 27 34
22 0 0 60 2 0 20 41 5 25 -28 58 59 58 61 5 27
23 0 0 59 39 13 20 41 6 24 -29 58 36 58 60 42 52
24 0 0 59 15 58 20 41 7 24 -30 58 13 31 60 19 50
25 0 0 58 52 14 20 41 9 23 -30 57 49 37 59 56 19
26 0 0 58 28 4 20 41 10 22 -31 57 25 15 59 32 19
27 0 0 58 3 26 20 41 11 22 -31 57 0 27 59 7 52
28 0 0 57 38 21 20 41 13 21 -32 56 35 13 58 42 57
29 0 0 57 12 48 20 41 14 21 -33 56 9 31 58 17 34
30 0 0 56 46 49 20 41 15 20 -33 55 43 24 57 51 44
31 0 0 56 20 24 20 41 17 19 -34 55 16 51 57 25 27
32 0 0 55 53 32 20 41 18 19 -35 54 49 53 56 58 42
33 0 0 55 26 15 20 41 19 18 -35 54 22 29 56 31 32
34 0 0 54 58 33 20 41 20 17 -36 53 54 42 56 3 55
35 0 0 54 30 26 20 41 21 16 -37 53 26 30 55 35 54
36 0 0 54 1 55 20 41 23 16 -37 52 57 55 55 7 27
37 0 0 53 33 0 20 41 24 15 -38 52 28 57 54 38 36
38 0 0 53 3 43 20 41 25 14 -39 51 59 38 54 9 21
39 0 0 52 34 4 20 41 26 14 -39 51 29 57 53 39 44
40 0 0 52 4 3 20 41 27 13 -40 50 59 55 53 9 44
41 0 0 51 33 42 20 41 28 12 -40 50 29 34 52 39 23
42 0 0 51 3 2 20 41 28 11 -41 49 58 54 52 8 42
43 0 0 50 32 3 20 41 29 10 -42 49 27 57 51 37 41
44 0 0 50 0 46 20 41 30 10 -42 48 56 42 51 6 22
45 0 0 49 29 12 20 41 31 9 -43 48 25 12 50 34 45
46 0 0 48 57 23 20 41 31 8 -44 47 53 26 50 2 52
47 0 0 48 25 20 20 41 32 7 -44 47 21 27 49 30 44
48 0 0 47 53 2 20 41 32 6 -45 46 49 16 48 58 21
49 0 0 47 20 33 20 41 33 5 -45 46 16 52 48 25 45
50 0 0 46 47 53 20 41 33 4 -46 45 44 19 47 52 57
51 0 0 46 15 2 20 41 34 4 -47 45 11 36 47 19 59
52 0 0 45 42 3 20 41 34 3 -47 44 38 45 46 46 52
53 0 0 45 8 57 20 41 34 2 -48 44 5 47 46 13 36
54 0 0 44 35 44 20 41 34 1 -48 43 32 44 45 40 13
........................... 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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