Path coordinates:
Altitude
E. Longitude Latitude U.T. star sun
+ 76 00 00 + 26 45 19 0 42 24 12 -13
+ 74 00 00 + 27 50 18 0 42 29 14 -15
+ 72 00 00 + 28 55 07 0 42 35 16 -17
+ 70 00 00 + 29 59 37 0 42 42 18 -19
+ 68 00 00 + 31 03 41 0 42 49 20 -21
+ 66 00 00 + 32 07 13 0 42 57 22 -23
+ 64 00 00 + 33 10 05 0 43 06 24 -24
+ 62 00 00 + 34 12 09 0 43 15 26 -26
+ 60 00 00 + 35 13 21 0 43 25 28 -28
+ 58 00 00 + 36 13 35 0 43 35 29 -30
+ 56 00 00 + 37 12 44 0 43 45 31 -31
+ 54 00 00 + 38 10 44 0 43 56 33 -33
+ 52 00 00 + 39 07 30 0 44 08 35 -35
+ 50 00 00 + 40 02 59 0 44 19 36 -36
+ 48 00 00 + 40 57 06 0 44 31 38 -38
+ 46 00 00 + 41 49 49 0 44 43 39 -39
+ 44 00 00 + 42 41 05 0 44 55 41 -41
+ 42 00 00 + 43 30 52 0 45 08 42 -42
+ 40 00 00 + 44 19 08 0 45 20 44 -43
+ 38 00 00 + 45 05 51 0 45 32 45 -44
+ 36 00 00 + 45 51 00 0 45 45 46 -46
+ 34 00 00 + 46 34 35 0 45 58 47 -47
+ 32 00 00 + 47 16 36 0 46 10 49 -48
+ 30 00 00 + 47 57 01 0 46 23 50 -49
+ 28 00 00 + 48 35 52 0 46 35 51 -50
+ 26 00 00 + 49 13 08 0 46 48 52 -51
+ 24 00 00 + 49 48 51 0 47 00 53 -51
+ 22 00 00 + 50 23 00 0 47 13 54 -52
+ 20 00 00 + 50 55 37 0 47 25 54 -53
+ 18 00 00 + 51 26 42 0 47 38 55 -54
+ 16 00 00 + 51 56 18 0 47 50 56 -54
+ 14 00 00 + 52 24 24 0 48 02 57 -55
+ 12 00 00 + 52 51 03 0 48 14 57 -55
+ 10 00 00 + 53 16 14 0 48 26 58 -56
+ 8 00 00 + 53 40 01 0 48 37 58 -56
+ 6 00 00 + 54 02 24 0 48 49 59 -56
+ 4 00 00 + 54 23 23 0 49 01 59 -57
+ 2 00 00 + 54 43 02 0 49 12 60 -57
+ 0 00 00 + 55 01 20 0 49 23 60 -57
- 2 00 00 + 55 18 19 0 49 35 60 -57
- 4 00 00 + 55 34 00 0 49 46 60 -57
- 6 00 00 + 55 48 25 0 49 57 60 -57
- 8 00 00 + 56 01 33 0 50 08 61 -57
- 10 00 00 + 56 13 27 0 50 19 61 -57
- 12 00 00 + 56 24 07 0 50 30 61 -57
- 14 00 00 + 56 33 34 0 50 40 60 -57
........... ocean part cutted out ...........
- 52 00 00 + 55 48 06 0 53 55 52 -47
- 54 00 00 + 55 33 38 0 54 05 51 -46
- 56 00 00 + 55 17 52 0 54 15 50 -46
- 58 00 00 + 55 00 48 0 54 25 49 -45
- 60 00 00 + 54 42 24 0 54 35 48 -44
- 62 00 00 + 54 22 39 0 54 44 47 -43
- 64 00 00 + 54 01 31 0 54 54 46 -42
- 66 00 00 + 53 39 00 0 55 04 45 -41
- 68 00 00 + 53 15 03 0 55 14 44 -40
- 70 00 00 + 52 49 40 0 55 24 43 -39
- 72 00 00 + 52 22 49 0 55 33 42 -38
- 74 00 00 + 51 54 29 0 55 43 41 -37
- 76 00 00 + 51 24 38 0 55 53 40 -36
- 78 00 00 + 50 53 15 0 56 02 39 -34
- 80 00 00 + 50 20 18 0 56 12 37 -33
- 82 00 00 + 49 45 48 0 56 21 36 -32
- 84 00 00 + 49 09 42 0 56 30 35 -31
- 86 00 00 + 48 32 00 0 56 40 34 -29
- 88 00 00 + 47 52 42 0 56 49 32 -28
- 90 00 00 + 47 11 45 0 56 57 31 -27
- 92 00 00 + 46 29 12 0 57 06 29 -25
- 94 00 00 + 45 45 01 0 57 14 28 -24
- 96 00 00 + 44 59 12 0 57 23 26 -22
- 98 00 00 + 44 11 47 0 57 30 25 -21
-100 00 00 + 43 22 46 0 57 38 23 -19
-102 00 00 + 42 32 12 0 57 45 22 -18
-104 00 00 + 41 40 04 0 57 52 20 -16
-106 00 00 + 40 46 27 0 57 58 18 -14
-108 00 00 + 39 51 22 0 58 04 17 -12
-110 00 00 + 38 54 53 0 58 10 15 -11
-112 00 00 + 37 57 04 0 58 15 13 -9
-114 00 00 + 36 57 58 0 58 19 11 -7
-116 00 00 + 35 57 41 0 58 23 9 -5
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Jan Manek
Stefanik Observatory Private :
Petrin 205 Werichova 950
118 46 Praha 1 152 00 Praha 5 - Barrandov |_|_|
Czech Republic Czech Republic / \
Internet : jmanek@mbox.vol.cz |-O-O-|
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Jan Manek's preliminary update
IOTA/IOTA-ES occultation update for
(245) Vera / HIP 27527 event on 1998, December 21/22
visible from Georgia, south Ukraina with Crym peninsula, Moldavia,
south Poland, Germany, Holland, middle England, Ireland,
Canada and USA
Summary
On the night December 21/22, 1998 will be occulted rather bright 8.8 mag star
by a 85km asteroid (245) Vera. This update is based on USNO/Flagstaff and TMO
astrometry for asteroid and HIPPARCOS star position. The updated path is about
0.5 path widths south of Goffin's nominal (and S&T 98 Feb, page 86) path with
-1.7 minute time correction.Weather permitting this may be a great occultation for the end of 1998 because uncertainities are rather small for this event !
The event at one glimpse:
* date and approx. UT time of event: December, 22, 1998 @ 00:48 UT (Euro),
00:57 UT (USA)
* magnitude of target star: 8.8
* magnitude drop [mag]: 2.6
* estimated maximum duration [s]: 7.5
* path description: After initial part running through India, Pakistan,
Afghanistan and Iran with probably no observers, the shadow runs over
Georgia hitting Russian 6m telescope ~00:45 UT and running along the
northern coast of Black Sea with Crym peninsula and Odessa in path
~00:46 UT, crossing Moldavia and returning to Ukraina with Lvov just
outside the shadow. Shadow enters Poland and runs along the border with
Slovakia and Czech Republic ~00:47:30 UT. Around 00:48:30 UT the path
runs through Germany with Berlin just north of path and Hannover in.
North Holland is in path ~00:49 UT as middle England with Middlesborough
~00:49:30 UT, North Ireland too.
After crossing Atlantic ocean the path enters Canada ~00:54:30 UT. Lake
Superior is reached at ~00:57 UT croosing now NE Michigan, NE Wisconsin,
south Minnesotta with Minneapolis ~00:57:20 UT, SW of South Dakota,
middle Nebraska and Colorado with Denver ~00:58 UT.
Further to west that star will be probably too low and moreover evening
twilight will make the location of star quite hard.
The occultation path:
* approximate width [km]: 100
* uncertainty [path widths]: 1
* uncertainty in time [s]: 15
* map: attached two - one for Europe and one for North America.
* remarks: Path uncertainities are given according to nominal star position
errors and expected asteroid positional accuracy.
!!!!!!!
Circles along the path are OCCULT exactly calculated centerline points.
!!!!!!!
Data for the target star:
* name: PPM 94943 = SAO 77608 = HIP 27527 = GSC 1870.0537
* constellation: Taurus
* J2000 position [h,m,s; o,',"]: 05h 49m 45.731s; +27o 07' 17.23"
* position source: HIPPARCOS
* estimated accuracy ["]: 0.01"
* V mag [mag]: 8.8
* remarks: Target star is 56' southwest of 4.6 mag star 136 Tau = SAO 77675
= PPM 95031 which is 6 degrees east of 1.7 mag beta Tau (upper horn of
Taurus).
Data for the minor planet:
* general information:
mumber, name: (245) Vera
approx. diameter [km]: 85
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
number of used observations: 18 USNO, 21 TMO
number of rejected observations: 4 TMO (all from Oct 10, 1 from Dec 11)
time covered by the observations: 1998 09 23 - 1998 12 11
rms residuals ["] (RA,DE): 0.07", 0.05"
estimated positional accuracy at epoch of event ["]: 0.09"
remarks:
Data for the event:
* UT date and time of least geocentric approach: 00:50:24 UT
* approx. V mag of minor planet at event [mag]: 11.3
* geocentric parallax of minor planet ["]: 5.134
* magnitude drop [mag]: 2.6
* estimated maximum duration [s]: 7.5
* apparent motion of minor planet ["/h]: 32.83
* angular distance to moon, phase of moon [deg,%]: 142, 9%
* remarks:
Calculator(s): Manek
Path coordinates:
Altitude
E. Longitude Latitude U.T. star sun
+ 76 00 00 + 25 54 55 0 42 20 12 -12
+ 74 00 00 + 26 59 47 0 42 26 14 -15
+ 72 00 00 + 28 04 30 0 42 31 16 -17
+ 70 00 00 + 29 08 56 0 42 38 18 -18
+ 68 00 00 + 30 12 58 0 42 45 20 -20
+ 66 00 00 + 31 16 28 0 42 53 22 -22
+ 64 00 00 + 32 19 19 0 43 02 24 -24
+ 62 00 00 + 33 21 24 0 43 11 26 -26
+ 60 00 00 + 34 22 38 0 43 21 27 -28
+ 58 00 00 + 35 22 54 0 43 31 29 -30
+ 56 00 00 + 36 22 08 0 43 41 31 -31
+ 54 00 00 + 37 20 13 0 43 52 33 -33
+ 52 00 00 + 38 17 06 0 44 04 34 -35
+ 50 00 00 + 39 12 43 0 44 15 36 -36
+ 48 00 00 + 40 06 59 0 44 27 38 -38
+ 46 00 00 + 40 59 51 0 44 39 39 -39
+ 44 00 00 + 41 51 18 0 44 51 41 -41
+ 42 00 00 + 42 41 16 0 45 03 42 -42
+ 40 00 00 + 43 29 44 0 45 16 44 -43
+ 38 00 00 + 44 16 40 0 45 29 45 -45
+ 36 00 00 + 45 02 03 0 45 41 46 -46
+ 34 00 00 + 45 45 52 0 45 54 48 -47
+ 32 00 00 + 46 28 06 0 46 07 49 -48
+ 30 00 00 + 47 08 46 0 46 19 50 -49
+ 28 00 00 + 47 47 52 0 46 32 51 -50
+ 26 00 00 + 48 25 23 0 46 45 52 -51
+ 24 00 00 + 49 01 20 0 46 57 53 -52
+ 22 00 00 + 49 35 45 0 47 10 54 -53
+ 20 00 00 + 50 08 36 0 47 22 55 -53
+ 18 00 00 + 50 39 57 0 47 35 56 -54
+ 16 00 00 + 51 09 47 0 47 47 56 -55
+ 14 00 00 + 51 38 08 0 47 59 57 -55
+ 12 00 00 + 52 05 00 0 48 12 58 -56
+ 10 00 00 + 52 30 26 0 48 24 58 -56
+ 8 00 00 + 52 54 26 0 48 36 59 -57
+ 6 00 00 + 53 17 01 0 48 47 59 -57
+ 4 00 00 + 53 38 13 0 48 59 60 -57
+ 2 00 00 + 53 58 03 0 49 11 60 -58
+ 0 00 00 + 54 16 33 0 49 22 61 -58
- 2 00 00 + 54 33 42 0 49 34 61 -58
- 4 00 00 + 54 49 34 0 49 45 61 -58
- 6 00 00 + 55 04 07 0 49 57 61 -58
- 8 00 00 + 55 17 24 0 50 08 61 -58
- 10 00 00 + 55 29 26 0 50 19 61 -58
- 12 00 00 + 55 40 13 0 50 30 61 -58
- 14 00 00 + 55 49 46 0 50 41 61 -58
........... ocean part cutted out ...........
- 52 00 00 + 55 03 51 0 53 59 52 -48
- 54 00 00 + 54 49 14 0 54 09 51 -47
- 56 00 00 + 54 33 18 0 54 19 50 -46
- 58 00 00 + 54 16 03 0 54 29 49 -45
- 60 00 00 + 53 57 28 0 54 39 48 -44
- 62 00 00 + 53 37 31 0 54 49 47 -43
- 64 00 00 + 53 16 11 0 54 59 47 -42
- 66 00 00 + 52 53 27 0 55 09 45 -41
- 68 00 00 + 52 29 17 0 55 19 44 -40
- 70 00 00 + 52 03 40 0 55 29 43 -39
- 72 00 00 + 51 36 35 0 55 39 42 -38
- 74 00 00 + 51 08 00 0 55 49 41 -37
- 76 00 00 + 50 37 54 0 55 58 40 -36
- 78 00 00 + 50 06 16 0 56 08 39 -34
- 80 00 00 + 49 33 05 0 56 18 37 -33
- 82 00 00 + 48 58 19 0 56 27 36 -32
- 84 00 00 + 48 21 58 0 56 36 35 -31
- 86 00 00 + 47 44 01 0 56 46 34 -29
- 88 00 00 + 47 04 27 0 56 55 32 -28
- 90 00 00 + 46 23 16 0 57 03 31 -27
- 92 00 00 + 45 40 27 0 57 12 29 -25
- 94 00 00 + 44 56 02 0 57 20 28 -24
- 96 00 00 + 44 09 59 0 57 29 26 -22
- 98 00 00 + 43 22 21 0 57 36 25 -21
-100 00 00 + 42 33 08 0 57 44 23 -19
-102 00 00 + 41 42 21 0 57 51 21 -17
-104 00 00 + 40 50 02 0 57 58 20 -16
-106 00 00 + 39 56 15 0 58 04 18 -14
-108 00 00 + 39 01 01 0 58 10 16 -12
-110 00 00 + 38 04 24 0 58 16 14 -10
-112 00 00 + 37 06 27 0 58 20 13 -9
-114 00 00 + 36 07 15 0 58 25 11 -7
-116 00 00 + 35 06 54 0 58 28 9 -5
----------------------------------------------------------------------------
Jan Manek
Stefanik Observatory Private :
Petrin 205 Werichova 950
118 46 Praha 1 152 00 Praha 5 - Barrandov |_|_|
Czech Republic Czech Republic / \
Internet : jmanek@mbox.vol.cz |-O-O-|
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so you will surely use the latest version of predictions page!