Archive for Oktober, 2010

Samstag, Oktober 16th, 2010

Station Map for the Occultation by (61) Danae at Monday, 2010 October 18 (~ 05:02 UT)

Magnitude of target star 2UCAC 45284797: 13.1 mag
UCAC instrumental „pseudo-R“ fit-model magnitude: 13.6 mag (data from UCAC3)

Please notice:
In the case of an occultation, the combined light of the asteroid and the star will drop by 0.2 mag to 11.6 mag (the magnitude of the asteroid).

The max duration is expected to be 6.9 sec with a max drop of 0.24 mag.
The event will take place at an altitude of 38 deg and at azimuth 293 deg. The sun will be at an altitude of -17 deg. (At predicted centre line for longitude W 05 deg)

There is a 1 sigma uncertainty interval of  ± 0.93 path widths.
The probabilities to see a positive event:

Centre line: ~  41 %
Path limits: ~  36 %
1 sigma lines:  ~ 14 %
2 sigma lines: ~ 1 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2010_10/1018_61_21356.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20101018_25544_Sites.txt

Good luck with your observation!

Oliver Klös

IOTA-ES

(61) Danae, 2010 October 18, Station Map

Samstag, Oktober 16th, 2010

Station Maps for the Occultation by (705) Erimina at Monday, 2010 October 18 (~ 02:27 UT)

WEST and EAST

Trans-Atlantic Event!
This occultation will be visible in Canada and NW U.S.A. too.

Magnitude of target star 2UCAC 41653789: 13.3 mag
UCAC instrumental „pseudo-R“ fit-model magnitude: 13.8 mag (data from UCAC3)

Please notice:
In the case of an occultation, the combined light of the asteroid and the star will drop by 0.5 mag to 12.6 mag (the magnitude of the asteroid).

The max duration is expected to be 8.8 sec with a max drop of 0.46 mag.
The event will take place at an altitude of 46 deg and at azimuth 262 deg. The sun will be at an altitude of -32 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 0.60 path widths.
The probabilities to see a positive event:

Centre line: ~  60 %
Path limits: ~  45 %
1 sigma lines:  ~ 16 %
2 sigma lines: ~ 2 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2010_10/1018_705_25543.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20101018_25543_Sites.txt

Good luck with your observation!

Oliver Klös

IOTA-ES

(705) Erimina, 2010 October 18, Station Map WEST(705) Erimina, 2010 October 18, Station Map EAST

Samstag, Oktober 16th, 2010

Station Map for the Occultation by (199) Byblis at Sunday, 2010 October 17 (~ 19:33 UT)

V-Magnitude of target star TYC 5846-00196-1: 11.8 mag
Johnson B-V Colour Index: + 0.5
UCAC instrumental „pseudo-R“ fit-model magnitude: 11.6 mag (data from UCAC3)

The max duration is expected to be 5.7 sec with a max drop of 1.7 mag.
The event will take place at an altitude of 15 deg and at azimuth 134 deg. The sun will be at an altitude of -27 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ± 1.79 path widths.
The probabilities to see a positive event:

Centre line: ~  22 %
Path limits: ~  21 %
1 sigma lines:  ~ 10 %
2 sigma lines: ~ 1 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2010_10/1017_199_21353.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20101017_21353_Sites.txt

Map and Coordinates at the web page of  E.A.O.N. :
http://astrosurf.com/eaon/Occultations%20October.htm

Good luck with your observation!

Oliver Klös

IOTA-ES

(199) Byblis, 2010 October 17, Station Map

Mittwoch, Oktober 13th, 2010

Station Map for the Occultation by (3485) Barruci at Friday, 2010 October 15 (~ 22:00 UT)

V-Magnitude of target star HIP 4094: 8.6 mag
Spectral type K0
Johnson B-V Colour Index: + 1.0
UCAC instrumental „pseudo-R“ fit-model magnitude: 8.3 mag (data from UCAC3)
The max duration is expected to be 1.0 sec with a max drop of 6.8 mag.
The event will take place at an altitude of 45 deg and at azimuth 161 deg. The sun will be at an altitude of -43 deg. (At predicted centre line for longitude E 05 deg)

There is a 1 sigma uncertainty interval of  ± 5.18 path widths.
The probabilities to see a positive event:

Centre line: ~  8 %
Path limits: ~  8 %
1 sigma lines:  ~ 4 %
2 sigma lines: ~ 1 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2010_10/1015_3485_22385.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20101015_22385_Sites.txt
Map and Coordinates at the web page of  E.A.O.N. :
http://astrosurf.com/eaon/Occultations%20October.htm

Good luck with your observation!

Oliver Klös
IOTA-ES

(3485) Barruci, 2010 October 15, Station Map

Montag, Oktober 11th, 2010

Station Maps for the Occultation by (476) Hedwig at Thursday, 2010 October 14 (~ 23:35 UT)

WEST and EAST

Magnitude of target star 2UCAC 41354932: 11.6 mag

The max duration is expected to be 10.0 sec with a max drop of 2.3 mag.
The event will take place at an altitude of 27 deg and at azimuth 79 deg. The sun will be at an altitude of -49 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 0.48 path widths.
The probabilities to see a positive event:

Centre line: ~  70 %
Path limits: ~  48 %
1 sigma lines:  ~ 16 %
2 sigma lines: ~ 2 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2010_10/1014_476_25533.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20101014_25533_Sites.txt

Map and Coordinates at the web page of  E.A.O.N. :
http://astrosurf.com/eaon/Occultations%20October.htm

Good luck with your observation!

Oliver Klös

IOTA-ES

(476) Hedwig, 2010 October 14, Station Map WEST(476) Hedwig, 2010 October 14, Station Map EAST

Montag, Oktober 11th, 2010

 

Station Map for the Occultation by (1159) Granada at Wednesday, 2010 October 13 (~ 18:50 UT)

Magnitude of target star 2UCAC 40630196: 11.5 mag
UCAC instrumental „pseudo-R“ fit-model magnitude: 11.2 mag (data from UCAC3)

The max duration is expected to be 2.7 sec with a max drop of 3.3 mag.
The event will take place at an altitude of  29 deg and at azimuth 85 deg. The sun will be at an altitude of -20 deg. (At predicted centre line for longitude E 05 deg)

There is a 1 sigma uncertainty interval of  ± 1.17 path widths.
The probabilities to see a positive event:

Centre line: ~  33 %
Path limits: ~  30 %
1 sigma lines:  ~ 13 %
2 sigma lines: ~ 1 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2010_10/1013_1159_25527.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20101013_25527_Sites.txt

Map and Coordinates at the web page of  E.A.O.N. :
http://astrosurf.com/eaon/Occultations%20October.htm

Good luck with your observation!

Oliver Klös

IOTA-ES

(1159) Granada, 2010 October 13

Montag, Oktober 11th, 2010

Station Map for the Occultation by (2642) Vesale at Wednesday, 2010 October 13 (~ 18:36 UT)

V-Magnitude of target star TYC 5198-00470-1: 9.5 mag
Spectral type G8
Johnson B-V Colour Index: + 1.0
UCAC instrumental „pseudo-R“ fit-model magnitude: 9.2 mag (data from UCAC3)
The max duration is expected to be 1.1 sec with a max drop of 6.1 mag.
The event will take place at an altitude of  41 deg and at azimuth 154 deg. The sun will be at an altitude of -15 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ± 7.76 path widths.
The probabilities to see a positive event:

Centre line: ~  5 %
Path limits: ~  5 %
1 sigma lines:  ~ 3 %
2 sigma lines: ~ 1 %

(Calculation according to Raymond Dusser, E.A.O.N. Circular #10)

PLEASE REMEMBER: Predictions are sometimes wrong. Please observe even with a small probability.
Let other observers know about you observing plans: Announce you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2010_10/1013_2642_22380.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20101013_22380_Sites.txt

Good luck with your observation!

Oliver Klös
IOTA-ES

(2642) Vesale, 2010 October 13, Station Map