IOTA/IOTA-ES occultation update for
(1024) Hale / HIP 72388 = SAO 140145 on March 23/24, 2004
visible from Asia, Caucasus area, Crimea, Moldavia, N Romania, NE Hungary,
Slovakia, Czechia, middle Germany, Netherlands, N England and North Ireland
Summary
In the night of March 23/24, 2004 a bright 7.8 mag star HIP 72388 = SAO 140145 will be occulted by a 43 km asteroid (1024) Hale. This update is based on USNO/Flagstaff astrometry for the asteroid and Hipparcos star position.
The updated path shows ~2 path width north shift with small time correction compared to Eric Frappa's nominal prediction. Second update will possibly follow if new observations from this opposition will appear.
Updated path runs over Asia 22:56-23:01 UT, Caucasus area around 23:02.2 UT, Crimea ~23:03.6 UT, Moldavia ~23:03.2 UT, N Romania ~23:04.5 UT, NE Hungary ~23:04.9 UT, Slovakia ~23:05.0 UT, Czechia ~23:05.5 UT, middle Germany ~23:05.9 UT, Netherlands ~23:06.1 UT, N England ~23:06.5 UT and North Ireland ~23:06.7 UT. Please check the path chart for details.
Here is current station list for European cities and observatories plus other sites.
If you would like to have your station listed with other observetories and sites, send me your request using the structure descripted here
Clear sky and good luck !!!
The event at one glimpse:
* date and approx. UT time of event: March 23, 2004 @ 23:05 UT (Europe)
* magnitude of target star: 7.8
* magnitude drop [mag]: 8.4
* estimated maximum duration [s]: 4.5
* approx. V mag of minor planet at event [mag]: 16.2
* geocentric parallax of minor planet ["]: 3.382
* apparent motion of minor planet ["/h]: 18.58
* angular distance to moon, phase of moon [deg,%]: 170, 9%
* Goffin's original chart reference: A04_XXXX
The occultation path with path maps:
* approximate ground width [km]: 60
* uncertainty [path widths]: 2.4
* uncertainty in time [s]: 18
* map: Overview
European part
* remarks: Path uncertainties [2 sigmas] are given according to nominal star
position errors and expected asteroid positional accuracy.
Elements for WinOccult - use 'Save as ...' to download and save these elements.
Finding charts (prepared in GUIDE8):
* occulted star is in center - labeled with cross
* labeled stars have indicated SAO numbers
* (smaller) square box shows 30' field in all wider field charts
* (larger) square box shows 3° field in wide field charts
* remarks:
Target star is in north Libra, about 2.2 degrees east of 3.9 mag star mu Virginis = SAO 140090.
!!! 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.
40-degree chart
3-degree chart
0.5-degree chart
Data for the target star:
* name: HIP 72388 = SAO 140145 = PPM 197926 = TYC 4994-00498-1
* constellation: Libra
* J2000 position [h,m,s; o,',"]: 14h 48m 02.2628s; -05o 30' 23.919"
* position source: Hipparcos
* estimated accuracy ["]: 0.02" (0.02", 0.01")
* V mag [mag]: 7.78
* B-V [mag]: +1.13
* remarks: Position includes parallax.
Acceleration terms were not included.
Data for the minor planet:
* general information:
number, name: (1024) Hale
approx. diameter [km]: 43
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone)
number of used observations: 96 USNO
number of rejected observations: 0
time covered by the observations: 1998 03 10 - 2003 04 30
rms residuals ["] (RA,DE): 0.11", 0.11"
estimated positional accuracy at epoch of event ["]: 0.08", 0.05"
remarks:
Path coordinates: click here
Calculator(s): Jan Manek
----------------------------------------------------------------------------
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 AT worldonline.cz |-O-O-|
--------------------------------------------------------------------U---U---
IOTA/IOTA-ES occultation update for
(1024) Hale / HIP 72388 = SAO 140145 on March 23/24, 2004
visible from Asia, Caucasus area, Crimea, Moldavia, N Romania, NE Hungary,
Slovakia, Czechia, middle Germany, Netherlands, N England and North Ireland
Summary
In the night of March 23/24, 2004 a bright 7.8 mag star HIP 72388 = SAO 140145 will be occulted by a 43 km asteroid (1024) Hale. This update is based on USNO/Flagstaff astrometry for the asteroid and Hipparcos star position.
The updated path shows ~2 path width north shift with small time correction compared to Eric Frappa's nominal prediction. Only very small correction to preliminary update. Only one new FASTT position from this year's opposition.
Updated path runs over Asia 22:56-23:01 UT, Caucasus area around 23:02.2 UT, Crimea ~23:03.6 UT, Moldavia ~23:03.2 UT, N Romania ~23:04.5 UT, NE Hungary ~23:04.9 UT, Slovakia ~23:05.0 UT, Czechia ~23:05.5 UT, middle Germany ~23:05.9 UT, Netherlands ~23:06.1 UT, N England ~23:06.5 UT and North Ireland ~23:06.7 UT. Please check the path chart for details.
Here is current station list for European cities and observatories plus other sites.
If you would like to have your station listed with other observetories and sites, send me your request using the structure descripted here
Clear sky and good luck !!!
The event at one glimpse:
* date and approx. UT time of event: March 23, 2004 @ 23:05 UT (Europe)
* magnitude of target star: 7.8
* magnitude drop [mag]: 8.4
* estimated maximum duration [s]: 4.5
* approx. V mag of minor planet at event [mag]: 16.2
* geocentric parallax of minor planet ["]: 3.382
* apparent motion of minor planet ["/h]: 18.58
* angular distance to moon, phase of moon [deg,%]: 170, 9%
* Goffin's original chart reference: A04_XXXX
The occultation path with path maps:
* approximate ground width [km]: 60
* uncertainty [path widths]: 3.3
* uncertainty in time [s]: 24
* map: Overview
European part
* remarks: Path uncertainties [2 sigmas] are given according to nominal star
position errors and expected asteroid positional accuracy.
Elements for WinOccult - use 'Save as ...' to download and save these elements.
Finding charts (prepared in GUIDE8):
* occulted star is in center - labeled with cross
* labeled stars have indicated SAO numbers
* (smaller) square box shows 30' field in all wider field charts
* (larger) square box shows 3° field in wide field charts
* remarks:
Target star is in north Libra, about 2.2 degrees east of 3.9 mag star mu Virginis = SAO 140090.
!!! 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.
40-degree chart
3-degree chart
0.5-degree chart
Data for the target star:
* name: HIP 72388 = SAO 140145 = PPM 197926 = TYC 4994-00498-1
* constellation: Libra
* J2000 position [h,m,s; o,',"]: 14h 48m 02.2628s; -05o 30' 23.919"
* position source: Hipparcos
* estimated accuracy ["]: 0.02" (0.02", 0.01")
* V mag [mag]: 7.78
* B-V [mag]: +1.13
* remarks: Position includes parallax.
Acceleration terms were not included.
Data for the minor planet:
* general information:
number, name: (1024) Hale
approx. diameter [km]: 43
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone)
number of used observations: 97 USNO
number of rejected observations: 0
time covered by the observations: 1998 03 10 - 2004 03 04
rms residuals ["] (RA,DE): 0.11", 0.11"
estimated positional accuracy at epoch of event ["]: 0.09", 0.06"
remarks:
Path coordinates: click here
Calculator(s): Jan Manek
----------------------------------------------------------------------------
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 AT worldonline.cz |-O-O-|
--------------------------------------------------------------------U---U---
IOTA/IOTA-ES occultation update for
(1024) Hale / HIP 72388 = SAO 140145 on March 23/24, 2004
visible from Asia, Caucasus area, Crimea, Moldavia, N Romania, NE Hungary,
Slovakia, Czechia, middle Germany, Netherlands, N England and North Ireland
Summary
In the night of March 23/24, 2004 a bright 7.8 mag star HIP 72388 = SAO 140145 will be occulted by a 43 km asteroid (1024) Hale. This update is based on USNO/Flagstaff, Ondrejov and OAC astrometry for the asteroid and Hipparcos star position.
The updated path shows ~1 path width north shift with small time correction compared to Eric Frappa's nominal prediction and 1 path width south shift to 'final' update.
Updated path runs over Asia 22:56-23:01 UT, Caucasus area around 23:02.2 UT, Crimea ~23:03.6 UT, Moldavia ~23:03.2 UT, N Romania ~23:04.5 UT, NE Hungary ~23:04.9 UT, Slovakia ~23:05.0 UT, Czechia ~23:05.5 UT, middle Germany ~23:05.9 UT, Netherlands ~23:06.1 UT, N England ~23:06.5 UT and North Ireland ~23:06.7 UT. Please check the path chart for details.
Here is current station list for European cities and observatories plus other sites.
If you would like to have your station listed with other observetories and sites, send me your request using the structure descripted here
Clear sky and good luck !!!
The event at one glimpse:
* date and approx. UT time of event: March 23, 2004 @ 23:05 UT (Europe)
* magnitude of target star: 7.8
* magnitude drop [mag]: 8.4
* estimated maximum duration [s]: 4.5
* approx. V mag of minor planet at event [mag]: 16.2
* geocentric parallax of minor planet ["]: 3.382
* apparent motion of minor planet ["/h]: 18.58
* angular distance to moon, phase of moon [deg,%]: 170, 9%
* Goffin's original chart reference: A04_XXXX
The occultation path with path maps:
* approximate ground width [km]: 60
* uncertainty [path widths]: 2.7
* uncertainty in time [s]: 20
* map: Overview
European part
* remarks: Path uncertainties [2 sigmas] are given according to nominal star
position errors and expected asteroid positional accuracy.
Elements for WinOccult - use 'Save as ...' to download and save these elements.
Finding charts (prepared in GUIDE8):
* occulted star is in center - labeled with cross
* labeled stars have indicated SAO numbers
* (smaller) square box shows 30' field in all wider field charts
* (larger) square box shows 3° field in wide field charts
* remarks:
Target star is in north Libra, about 2.2 degrees east of 3.9 mag star mu Virginis = SAO 140090.
!!! 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.
40-degree chart
3-degree chart
0.5-degree chart
Data for the target star:
* name: HIP 72388 = SAO 140145 = PPM 197926 = TYC 4994-00498-1
* constellation: Libra
* J2000 position [h,m,s; o,',"]: 14h 48m 02.2628s; -05o 30' 23.919"
* position source: Hipparcos
* estimated accuracy ["]: 0.02" (0.02", 0.01")
* V mag [mag]: 7.78
* B-V [mag]: +1.13
* remarks: Position includes parallax.
Acceleration terms were not included.
Data for the minor planet:
* general information:
number, name: (1024) Hale
approx. diameter [km]: 43
* orbital information
orbit source: calculation Manek
source of used astrometry: USNO/Flagstaff (Ron Stone), Ondrejov (Kusnirak, Manek), OAC (Lopez, Pacheco)
number of used observations: 97 USNO, 4 Ondrejov, 5 OAC
number of rejected observations: 0
time covered by the observations: 1998 03 10 - 2004 03 21
rms residuals ["] (RA,DE): 0.11", 0.11"
estimated positional accuracy at epoch of event ["]: 0.08", 0.06"
remarks:
Path coordinates: click here
Calculator(s): Jan Manek
----------------------------------------------------------------------------
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 AT worldonline.cz |-O-O-|
--------------------------------------------------------------------U---U---