Update for (738) Alagasta - January 11/12, 2003
Update computed by Jan Manek; issued 01 Jan 2003 20:33 +0100 (CET)
Jan Manek's update
IOTA/IOTA-ES occultation update for
(738) Alagasta / TYC 1368-00048-1 on January 11/12, 2003
visible from middle East, W Turkey, NE Greece, frm.Yugoslavia, NE Italy,
W Austria, SW Germany, NE France, S Belgium, England, N Ireland, S Greenland and N Canada
Summary
In the night of January 11/12, 2003 a faint 11.4 mag star TYC 1368-00048-1
will be occulted by a 65 km asteroid (738) Alagasta. This update is based on
USNO/Flagstaff and TMO astrometry for the asteroid and recent UCAC star position.
The updated path shows no path shift with time 0.4 minutes later compared to
Edwin Goffin's nominal prediction.
Updated path runs over middle East ~3:12.0 UT, W Turkey ~3:12.5 UT, NE Greece ~3:12.9 UT, frm.Yugoslavia ~3:13.5 UT,
NE Italy ~3:13.9 UT, W Austria ~3:14.0 UT, SW Germany ~3:14.3, NE France ~3:14.6 UT with Strasbourg and Lille in path,
S Belgium ~3:14.7 UT, England ~3:15.3 UT with London on south limit, N Ireland ~3:15.7 UT, S Greenland ~3:19 UT and
N Canada ~3:20-3:23 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 12, 2003 @ 03:14 UT (Europe)
* magnitude of target star: 11.4
* magnitude drop [mag]: 2.7
* estimated maximum duration [s]: 5.1
* path description: given above
* Goffin's original chart reference: A03_0159
The occultation path:
* approximate ground width [km]: 90
* uncertainty [path widths]: 1.5
* 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: TYC 1368-00048-1
* constellation: Gemini
* J2000 position [h,m,s; o,',"]: 07h 34m 28.7597s; +19o 47' 00.000"
* position source: recent UCAC position combined with Tycho-2 position to get also proper motion
* estimated accuracy ["]: 0.02" (0.02", 0.02")
* V mag [mag]: 11.41
* B-V [mag]: +0.74
* remarks:
Target star is in Gemini, about 4.0 degrees SE of 3.5 mag star delta Geminorum = SAO 79294.
!!! 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 13.0
* labeled stars have indicated SAO numbers
* remarks: Proper motion derived from Tycho-2 and UCAC position.
Data for the minor planet:
* general information:
number, name: (738) Alagasta
approx. diameter [km]: 65
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 89 USNO, 20 TMO
number of rejected observations: 17 USNO, 2 TMO
time covered by the observations: 1998 02 12 - 2002 12 19
rms residuals ["] (RA,DE): 0.07", 0.07"
estimated positional accuracy at epoch of event ["]: 0.06", 0.05"
remarks:
Data for the event:
* UT date and time of least geocentric approach: 03:17.6 UT
* approx. V mag of minor planet at event [mag]: 14.0
* geocentric parallax of minor planet ["]: 4.501
* magnitude drop [mag]: 2.7
* estimated maximum duration [s]: 5.1
* apparent motion of minor planet ["/h]: 32.28
* angular distance to moon, phase of moon [deg,%]: 73, 65%
* remarks:
Elements for WinOccult:
============ cut here ===========================================
2003 Jan 12
738 Alagasta
3h 17.6m UT
68-00048-1 11.4 7 34 28.760 19 47 0.00TYC 1368-00048-1
14.0 65 5.1 1.954 -2.222 7.63
-46.987 19.782 132.63 -21.72
3.2928 .16081 .66123 -6.97064 1.69496 -0.00001 0.00020
2000 303.3777622003 111.0000042.253931 132.3888503.528820 0.063631813.035227362.8420903510.15 0.15
RATE 1.8638770 .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
50 0 0 29 35 2 3 11 30 5 -6 30 1 23 29 8 53
49 0 0 29 59 11 3 11 31 6 -7 30 25 37 29 32 58
48 0 0 30 23 40 3 11 32 7 -8 30 50 10 29 57 21
47 0 0 30 48 26 3 11 34 8 -9 31 15 1 30 22 3
46 0 0 31 13 30 3 11 35 9 -9 31 40 10 30 47 3
45 0 0 31 38 51 3 11 37 10 -10 32 5 36 31 12 19
44 0 0 32 4 28 3 11 39 11 -11 32 31 18 31 37 52
43 0 0 32 30 21 3 11 41 12 -12 32 57 15 32 3 39
42 0 0 32 56 27 3 11 44 13 -13 33 23 26 32 29 41
41 0 0 33 22 48 3 11 46 13 -14 33 49 51 32 55 57
40 0 0 33 49 21 3 11 49 14 -15 34 16 30 33 22 26
39 0 0 34 16 7 3 11 52 15 -16 34 43 20 33 49 7
38 0 0 34 43 4 3 11 55 16 -17 35 10 21 34 15 60
37 0 0 35 10 11 3 11 58 17 -18 35 37 33 34 43 3
36 0 0 35 37 28 3 12 1 18 -19 36 4 55 35 10 16
35 0 0 36 4 54 3 12 5 19 -20 36 32 25 35 37 37
34 0 0 36 32 28 3 12 9 20 -20 37 0 3 36 5 7
33 0 0 37 0 9 3 12 12 21 -21 37 27 48 36 32 43
32 0 0 37 27 56 3 12 16 21 -22 37 55 39 37 0 26
31 0 0 37 55 48 3 12 20 22 -23 38 23 36 37 28 15
30 0 0 38 23 45 3 12 24 23 -24 38 51 36 37 56 8
29 0 0 38 51 45 3 12 29 24 -25 39 19 41 38 24 5
28 0 0 39 19 48 3 12 33 25 -25 39 47 48 38 52 4
27 0 0 39 47 54 3 12 38 26 -26 40 15 56 39 20 6
26 0 0 40 15 60 3 12 42 26 -27 40 44 6 39 48 8
25 0 0 40 44 6 3 12 47 27 -28 41 12 15 40 16 11
24 0 0 41 12 11 3 12 52 28 -29 41 40 24 40 44 13
23 0 0 41 40 15 3 12 57 29 -29 42 8 31 41 12 14
22 0 0 42 8 16 3 13 2 29 -30 42 36 35 41 40 13
21 0 0 42 36 14 3 13 7 30 -31 43 4 36 42 8 8
20 0 0 43 4 8 3 13 12 31 -32 43 32 32 42 35 60
19 0 0 43 31 57 3 13 18 31 -32 44 0 24 43 3 46
18 0 0 43 59 40 3 13 23 32 -33 44 28 9 43 31 27
17 0 0 44 27 17 3 13 28 33 -34 44 55 48 43 59 2
16 0 0 44 54 46 3 13 34 33 -34 45 23 19 44 26 29
15 0 0 45 22 7 3 13 39 34 -35 45 50 42 44 53 49
14 0 0 45 49 20 3 13 45 35 -36 46 17 55 45 20 60
13 0 0 46 16 22 3 13 51 35 -36 46 44 59 45 48 1
12 0 0 46 43 15 3 13 56 36 -37 47 11 53 46 14 53
11 0 0 47 9 56 3 14 2 37 -38 47 38 35 46 41 33
10 0 0 47 36 26 3 14 8 37 -38 48 5 5 47 8 2
9 0 0 48 2 43 3 14 13 38 -39 48 31 23 47 34 19
8 0 0 48 28 48 3 14 19 38 -39 48 57 28 48 0 23
7 0 0 48 54 39 3 14 25 39 -40 49 23 19 48 26 14
6 0 0 49 20 15 3 14 31 39 -40 49 48 55 48 51 51
5 0 0 49 45 37 3 14 37 40 -41 50 14 17 49 17 13
4 0 0 50 10 44 3 14 42 40 -41 50 39 23 49 42 21
3 0 0 50 35 35 3 14 48 41 -42 51 4 14 50 7 13
2 0 0 51 0 10 3 14 54 41 -42 51 28 48 50 31 48
1 0 0 51 24 28 3 14 60 41 -43 51 53 5 50 56 8
0 0 0 51 48 29 3 15 6 42 -43 52 17 4 51 20 10
- 1 0 0 52 12 13 3 15 12 42 -44 52 40 46 51 43 55
- 2 0 0 52 35 39 3 15 17 43 -44 53 4 10 52 7 23
- 3 0 0 52 58 46 3 15 23 43 -44 53 27 16 52 30 32
- 4 0 0 53 21 35 3 15 29 43 -45 53 50 3 52 53 23
- 5 0 0 53 44 5 3 15 34 44 -45 54 12 30 53 15 56
- 6 0 0 54 6 16 3 15 40 44 -45 54 34 39 53 38 9
- 7 0 0 54 28 8 3 15 46 44 -46 54 56 28 54 0 3
- 8 0 0 54 49 40 3 15 51 44 -46 55 17 57 54 21 38
- 9 0 0 55 10 52 3 15 57 45 -46 55 39 6 54 42 53
- 10 0 0 55 31 44 3 16 3 45 -46 55 59 55 55 3 49
- 11 0 0 55 52 16 3 16 8 45 -47 56 20 24 55 24 24
- 12 0 0 56 12 28 3 16 14 45 -47 56 40 32 55 44 39
- 13 0 0 56 32 20 3 16 19 46 -47 57 0 20 56 4 34
- 14 0 0 56 51 51 3 16 24 46 -47 57 19 48 56 24 9
- 15 0 0 57 11 1 3 16 30 46 -47 57 38 54 56 43 23
........................... shortened .............................
- 34 0 0 62 10 49 3 18 3 47 -48 62 37 14 61 44 35
- 35 0 0 62 23 18 3 18 7 47 -48 62 49 39 61 57 9
- 36 0 0 62 35 28 3 18 11 46 -48 63 1 45 62 9 24
- 37 0 0 62 47 20 3 18 16 46 -48 63 13 32 62 21 21
- 38 0 0 62 58 53 3 18 20 46 -48 63 25 0 62 32 59
- 39 0 0 63 10 9 3 18 24 46 -48 63 36 11 62 44 18
- 40 0 0 63 21 6 3 18 28 46 -48 63 47 3 62 55 20
- 41 0 0 63 31 45 3 18 32 46 -48 63 57 38 63 6 4
- 42 0 0 63 42 6 3 18 36 46 -48 64 7 54 63 16 30
- 43 0 0 63 52 10 3 18 40 46 -48 64 17 54 63 26 38
- 44 0 0 64 1 57 3 18 44 46 -48 64 27 36 63 36 29
- 45 0 0 64 11 26 3 18 48 46 -47 64 37 1 63 46 2
- 46 0 0 64 20 38 3 18 52 45 -47 64 46 9 63 55 19
- 47 0 0 64 29 33 3 18 56 45 -47 64 54 60 64 4 18
- 48 0 0 64 38 12 3 18 60 45 -47 65 3 35 64 13 1
- 49 0 0 64 46 34 3 19 4 45 -47 65 11 53 64 21 27
- 50 0 0 64 54 40 3 19 7 45 -47 65 19 54 64 29 37
- 51 0 0 65 2 30 3 19 11 45 -47 65 27 40 64 37 30
- 52 0 0 65 10 3 3 19 15 44 -46 65 35 10 64 45 8
- 53 0 0 65 17 21 3 19 18 44 -46 65 42 24 64 52 29
- 54 0 0 65 24 23 3 19 22 44 -46 65 49 22 64 59 35
- 55 0 0 65 31 10 3 19 25 44 -46 65 56 5 65 6 24
- 56 0 0 65 37 41 3 19 29 44 -46 66 2 33 65 12 59
- 57 0 0 65 43 57 3 19 32 44 -46 66 8 46 65 19 18
- 58 0 0 65 49 57 3 19 36 43 -45 66 14 43 65 25 22
- 59 0 0 65 55 43 3 19 39 43 -45 66 20 25 65 31 10
- 60 0 0 66 1 14 3 19 43 43 -45 66 25 53 65 36 44
- 61 0 0 66 6 30 3 19 46 43 -45 66 31 6 65 42 3
- 62 0 0 66 11 31 3 19 49 43 -45 66 36 5 65 47 7
- 63 0 0 66 16 18 3 19 53 42 -44 66 40 49 65 51 57
- 64 0 0 66 20 50 3 19 56 42 -44 66 45 19 65 56 32
- 65 0 0 66 25 9 3 19 59 42 -44 66 49 35 66 0 52
- 66 0 0 66 29 13 3 20 2 42 -44 66 53 37 66 4 58
- 67 0 0 66 33 3 3 20 6 42 -44 66 57 24 66 8 51
- 68 0 0 66 36 39 3 20 9 41 -43 67 0 58 66 12 28
- 69 0 0 66 40 0 3 20 12 41 -43 67 4 18 66 15 52
- 70 0 0 66 43 9 3 20 15 41 -43 67 7 24 66 19 2
- 71 0 0 66 46 3 3 20 18 41 -43 67 10 17 66 21 58
- 72 0 0 66 48 44 3 20 21 40 -42 67 12 56 66 24 41
- 73 0 0 66 51 11 3 20 24 40 -42 67 15 22 66 27 9
- 74 0 0 66 53 24 3 20 27 40 -42 67 17 34 66 29 24
- 75 0 0 66 55 24 3 20 30 40 -42 67 19 33 66 31 25
- 76 0 0 66 57 11 3 20 33 39 -41 67 21 18 66 33 13
- 77 0 0 66 58 44 3 20 36 39 -41 67 22 50 66 34 47
- 78 0 0 67 0 3 3 20 39 39 -41 67 24 9 66 36 7
- 79 0 0 67 1 10 3 20 42 39 -41 67 25 15 66 37 14
- 80 0 0 67 2 3 3 20 45 38 -40 67 26 7 66 38 8
- 81 0 0 67 2 42 3 20 48 38 -40 67 26 46 66 38 48
- 82 0 0 67 3 9 3 20 51 38 -40 67 27 12 66 39 15
- 83 0 0 67 3 22 3 20 54 38 -40 67 27 25 66 39 28
- 84 0 0 67 3 22 3 20 56 37 -39 67 27 25 66 39 28
- 85 0 0 67 3 8 3 20 59 37 -39 67 27 11 66 39 14
- 86 0 0 67 2 41 3 21 2 37 -39 67 26 45 66 38 47
- 87 0 0 67 2 1 3 21 5 37 -39 67 26 5 66 38 7
- 88 0 0 67 1 8 3 21 8 36 -38 67 25 12 66 37 13
- 89 0 0 67 0 1 3 21 10 36 -38 67 24 6 66 36 5
- 90 0 0 66 58 40 3 21 13 36 -38 67 22 46 66 34 44
- 91 0 0 66 57 7 3 21 16 35 -37 67 21 13 66 33 10
- 92 0 0 66 55 20 3 21 18 35 -37 67 19 27 66 31 22
- 93 0 0 66 53 19 3 21 21 35 -37 67 17 27 66 29 20
- 94 0 0 66 51 5 3 21 24 35 -37 67 15 14 66 27 5
- 95 0 0 66 48 37 3 21 26 34 -36 67 12 48 66 24 35
- 96 0 0 66 45 55 3 21 29 34 -36 67 10 8 66 21 52
- 97 0 0 66 42 60 3 21 32 34 -36 67 7 14 66 18 55
- 98 0 0 66 39 51 3 21 34 33 -35 67 4 6 66 15 45
- 99 0 0 66 36 27 3 21 37 33 -35 67 0 45 66 12 20
-100 0 0 66 32 50 3 21 40 33 -35 66 57 10 66 8 40
-101 0 0 66 28 59 3 21 42 32 -34 66 53 21 66 4 47
-102 0 0 66 24 54 3 21 45 32 -34 66 49 17 66 0 39
-103 0 0 66 20 34 3 21 47 32 -34 66 44 60 65 56 17
-104 0 0 66 15 59 3 21 50 31 -33 66 40 28 65 51 41
-105 0 0 66 11 11 3 21 52 31 -33 66 35 42 65 46 49
-106 0 0 66 6 7 3 21 55 31 -33 66 30 41 65 41 43
-107 0 0 66 0 49 3 21 58 30 -32 66 25 26 65 36 22
-108 0 0 65 55 16 3 22 0 30 -32 66 19 55 65 30 46
-109 0 0 65 49 27 3 22 3 30 -32 66 14 10 65 24 55
-110 0 0 65 43 24 3 22 5 29 -31 66 8 10 65 18 49
-111 0 0 65 37 5 3 22 7 29 -31 66 1 54 65 12 27
-112 0 0 65 30 31 3 22 10 29 -31 65 55 23 65 5 49
-113 0 0 65 23 41 3 22 12 28 -30 65 48 37 64 58 56
-114 0 0 65 16 35 3 22 15 28 -30 65 41 35 64 51 47
-115 0 0 65 9 14 3 22 17 27 -29 65 34 16 64 44 21
-116 0 0 65 1 36 3 22 20 27 -29 65 26 42 64 36 40
-117 0 0 64 53 42 3 22 22 27 -29 65 18 52 64 28 42
-118 0 0 64 45 31 3 22 24 26 -28 65 10 45 64 20 27
-119 0 0 64 37 3 3 22 27 26 -28 65 2 22 64 11 56
-120 0 0 64 28 19 3 22 29 26 -27 64 53 42 64 3 8
-121 0 0 64 19 18 3 22 32 25 -27 64 44 45 63 54 2
-122 0 0 64 9 59 3 22 34 25 -27 64 35 30 63 44 40
-123 0 0 64 0 23 3 22 36 24 -26 64 25 59 63 34 59
-124 0 0 63 50 30 3 22 38 24 -26 64 16 10 63 25 2
-125 0 0 63 40 19 3 22 41 23 -25 64 6 3 63 14 46
-126 0 0 63 29 49 3 22 43 23 -25 63 55 38 63 4 12
-127 0 0 63 19 1 3 22 45 23 -24 63 44 55 62 53 20
-128 0 0 63 7 55 3 22 47 22 -24 63 33 54 62 42 9
-129 0 0 62 56 31 3 22 50 22 -24 63 22 34 62 30 40
-130 0 0 62 44 47 3 22 52 21 -23 63 10 55 62 18 52
-131 0 0 62 32 45 3 22 54 21 -23 62 58 57 62 6 44
-132 0 0 62 20 23 3 22 56 20 -22 62 46 40 61 54 18
-133 0 0 62 7 42 3 22 58 20 -22 62 34 4 61 41 32
-134 0 0 61 54 41 3 23 0 19 -21 62 21 8 61 28 27
-135 0 0 61 41 21 3 23 2 19 -21 62 7 53 61 15 1
-136 0 0 61 27 40 3 23 4 18 -20 61 54 17 61 1 16
-137 0 0 61 13 39 3 23 6 18 -20 61 40 21 60 47 10
-138 0 0 60 59 18 3 23 8 17 -19 61 26 5 60 32 44
-139 0 0 60 44 37 3 23 10 17 -19 61 11 29 60 17 58
-140 0 0 60 29 35 3 23 12 16 -18 60 56 31 60 2 51
-141 0 0 60 14 11 3 23 14 16 -18 60 41 13 59 47 23
-142 0 0 59 58 27 3 23 16 15 -17 60 25 34 59 31 34
-143 0 0 59 42 22 3 23 17 15 -16 60 9 34 59 15 24
-144 0 0 59 25 56 3 23 19 14 -16 59 53 12 58 58 53
-145 0 0 59 9 8 3 23 21 14 -15 59 36 29 58 42 0
-146 0 0 58 51 58 3 23 22 13 -15 59 19 24 58 24 46
-147 0 0 58 34 27 3 23 24 12 -14 59 1 58 58 7 11
-148 0 0 58 16 35 3 23 26 12 -14 58 44 10 57 49 13
-149 0 0 57 58 20 3 23 27 11 -13 58 26 0 57 30 55
-150 0 0 57 39 44 3 23 28 11 -12 58 7 28 57 12 14
-151 0 0 57 20 46 3 23 30 10 -12 57 48 35 56 53 12
-152 0 0 57 1 26 3 23 31 9 -11 57 29 19 56 33 48
-153 0 0 56 41 45 3 23 32 9 -11 57 9 42 56 14 2
-154 0 0 56 21 41 3 23 33 8 -10 56 49 42 55 53 55
-155 0 0 56 1 16 3 23 34 7 -9 56 29 21 55 33 26
-156 0 0 55 40 29 3 23 35 7 -9 56 8 38 55 12 35
-157 0 0 55 19 20 3 23 36 6 -8 55 47 33 54 51 23
-158 0 0 54 57 50 3 23 37 5 -7 55 26 6 54 29 49
........................... 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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