Archive for Januar, 2009

Samstag, Januar 31st, 2009

Station Map for the Occultation by (979) Ilsewa at Monday, 2009 February 02 (~ 18:57 UT)

V-Magnitude of target star TYC 0766-01692-1: 12.2 mag
Johnson B-V Colour Index: + 0.3
The UCAC2 gives a „pseudo-R magnitude“ of  12.6 mag

The max duration is expected to be 3.0 sec with a max drop of  2.9 mag.
The event will take place at an altitude of 35 deg and at azimuth 111 deg. The sun will be at an altitude of -19 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ± 1.35 path widths.
The probabilities to see a positive event:

Centre line: ~  29 %
Path limits: ~  27 %
1 sigma lines:  ~ 12 %
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/2009_02/0202_979_17223.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090202_17223_Sites.txt

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

Good luck with your observation!

Oliver Klös

IOTA-ES

(979) Ilsewa, 2009 Feb 02, Station Map

Freitag, Januar 30th, 2009

Station Map for the Occultation by (246) Poesia at Sunday, 2009 February 01 (~ 22:38 UT)

Magnitude of target star 2UCAC 40011153: 11.9 mag

The max duration is expected to be 4.8 sec with a max drop of  2.5 mag.
The event will take place at an altitude of 56 deg and at azimuth 195 deg. The sun will be at an altitude of -50 deg. (At predicted centre line for longitude E 11 deg)

There is a 1 sigma uncertainty interval of  ±  0.75 path widths.
The probabilities to see a positive event:

Centre line: ~  50 %
Path limits: ~  41 %
1 sigma lines:  ~ 15 %
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/2009_02/0201_946_17219.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090201_17219_Sites.txt

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

Good luck with your observation!

Oliver Klös

IOTA-ES

(246) Poesia, 2009 Feb 01, Station Map

Freitag, Januar 30th, 2009

Station Maps for the Occultation by (185) Eunike at Sunday, 2009 February 01 (~ 22:27 UT)

NORTH and SOUTH

Magnitude of target star 2UCAC 32693372: 12.8 mag

Please notice:
In the case of an occultation, the combined light of the asteroid and the star will drop by 0.3 mag to 11.7 mag (the magnitude of the asteroid)!

The max duration is expected to be 10.3 sec with a max drop of  0.34 mag.
The event will take place at an altitude of 46 deg and at azimuth 177 deg. The sun will be at an altitude of -57 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ±  0.26 path widths.
The probabilities to see a positive event:

Centre line: ~  94 %
Path limits: ~  50 %
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/2009_02/0201_185_19860.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090201_19860_Sites.txt

Good luck with your observation!

Oliver Klös

IOTA-ES

(185) Eunike, 2009 February 01, Station Map NORTH(185) Eunike, 2009 February 01, Station Map SOUTH

Freitag, Januar 30th, 2009

Station Map for the Occultation by (1343) Nicole at Sunday, 2009 February 01 (~ 04:02 UT)

V-Magnitude of target star TYC 0864-00817-1: 10.3 mag
Johnson B-V Colour Index: + 1.1
The UCAC2 gives a „pseudo-R magnitude“ of  10.0 mag

The max duration is expected to be 5.3 sec with a max drop of  5.1 mag.
The event will take place at an altitude of 39 deg and at azimuth 226 deg. The sun will be at an altitude of -21 deg. (At predicted centre line for longitude E 19 deg 50 min)

There is a 1 sigma uncertainty interval of  ±  1.57 path widths.
The probabilities to see a positive event:

Centre line: ~  25 %
Path limits: ~  24 %
1 sigma lines:  ~ 11 %
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/2009_02/0201_1343_17218.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090201_17218_Sites.txt

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

Good luck with your observation!

Oliver Klös

IOTA-ES

(1343) Nicole, 2009 Feb 01, Station Map

Donnerstag, Januar 29th, 2009

Station Map for the Occultation by (876) Scott at Saturday, 2009 January 31 (~ 19:23 UT)

V-Magnitude of target star TYC 0804-01152-1: 10.4 mag
Johnson B-V Colour Index: + 0.4
The UCAC2 gives a „pseudo-R magnitude“ of  10.4 mag

The max duration is expected to be 1.7 sec with a max drop of  5.0 mag.
The event will take place at an altitude of 30 deg and at azimuth 112 deg. The sun will be at an altitude of -30 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ±  2.13 path widths.
The probabilities to see a positive event:

Centre line: ~  19 %
Path limits: ~  18 %
1 sigma lines:  ~ 9 %
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/2009_01/0131_876_18694.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090131_18694_Sites.txt

Map and Coordinates at the web page of  E.A.O.N. (not updated with Steve Preston’s data):
http://astrosurf.com/eaon/Occultations%20January.htm

Good luck with your observation!

Oliver Klös

IOTA-ES

(876) Scott, 2009 Jan 31, Station Map

Dienstag, Januar 27th, 2009

Station Map for the Occultation by (3768) Monroe at Wednesday, 2009 January 28 (~ 22:46 UT)

V-Magnitude of target star TYC 4699-00454-1: 9.6 mag
Spectral type G0
Johnson B-V Colour Index: + 0.6
The UCAC2 gives a „pseudo-R magnitude“ of  9.5 mag

The max duration is expected to be 0.9 sec with a max drop of  6.8 mag.
The event will take place at an altitude of 15 deg and at azimuth 256 deg. The sun will be at an altitude of -59 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ±  5.16 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/2009_01/0128_3768_18959.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090128_18959_Sites.txt

Good luck with your observation!

Oliver Klös

IOTA-ES

(3768) Monroe, 2009 Jan 28, Station Map

Dienstag, Januar 27th, 2009

Station Map for the Occultation by (2967) Vladisvyat at Wednesday, 2009 January 28 (~ 01:42 UT)

V-Magnitude of target star TYC 5555-00162-1: 9.9 mag
Spectral type G5
Johnson B-V Colour Index: + 0.6
The UCAC2 gives a „pseudo-R magnitude“ of  9.7 mag

The max duration is expected to be 2.6 sec with a max drop of 7.4 mag.
The event will take place at an altitude of 14 deg and at azimuth 117 deg. The sun will be at an altitude of -59 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ±  3.01 path widths.
The probabilities to see a positive event:

Centre line: ~  13 %
Path limits: ~  13 %
1 sigma lines:  ~ 7 %
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/2009_01/0128_2967_18929.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090128_18929_Sites.txt

Map and Coordinates at the web page of  E.A.O.N. (not updated with Steve Preston’s data):
http://astrosurf.com/eaon/Occultations%20January.htm

Good luck with your observation!

Oliver Klös

IOTA-ES

(2967) Vladisvyat, 2009 Jan 28, Station Map

Montag, Januar 26th, 2009

Station Map for the Occultation by (207) Hedda at Tuesday, 2009 January 27 (~ 04:25 UT)

V-Magnitude of target star TYC 5575-00513-1: 12.1 mag
Johnson B-V Colour Index: + 1.0
The UCAC2 gives a „pseudo-R magnitude“ of  11.6 mag

The max duration is expected to be 3.4 sec with a max drop of 2.4 mag.
The event will take place at an altitude of 27 deg and at azimuth 153 deg. The sun will be at an altitude of -32 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ±  0.54 path widths.
The probabilities to see a positive event:

Centre line: ~  64 %
Path limits: ~  47 %
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/2009_01/0127_207_17205.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090127_17205_Sites.txt

Map and Coordinates at the web page of  E.A.O.N. (not updated with Steve Preston’s data):
http://astrosurf.com/eaon/Occultations%20January.htm

Good luck with your observation!

Oliver Klös

IOTA-ES(207) Hedda, 2009 Jan 27, Station Map

Montag, Januar 26th, 2009

Station Map for the Occultation by (129) Antigone at Monday, 2009 January 26 (~ 23:40 UT)

V-Magnitude of target star TYC 1379-00821-1: 9.6 mag
Spectral type G5
Johnson B-V Colour Index: + 1.1
The UCAC2 gives a „pseudo-R magnitude“ of 9.3 mag

The max duration is expected to be 8.4 sec with a max drop of 1.8 mag.
The event will take place at an altitude of 48 deg and at azimuth 193 deg. The sun will be at an altitude of -51 deg. (At predicted centre line for longitude E 15 deg)

There is a 1 sigma uncertainty interval of  ±  0.27 path widths.
The probabilities to see a positive event:

Centre line: ~  93 %
Path limits: ~  50 %
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/2009_01/0126_129_17202.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090126_17202_Sites.txt

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

Good luck with your observation!

Oliver Klös

IOTA-ES

(129) Antigone, 2009 Jan 26, Station Map

Montag, Januar 26th, 2009

Station Maps for the Occultation by (1076) Viola at Monday, 2009 January 26 (~ 21:35 UT)

WEST and EAST

V-Magnitude of target star TYC 1234-00551-1: 10.3 mag
Johnson B-V Colour Index: + 1.4
The UCAC2 gives a „pseudo-R magnitude“ of 10.1 mag

The max duration is expected to be 2.2 sec with a max drop of 5.8 mag.
The event will take place at an altitude of 43 deg and at azimuth 244 deg. The sun will be at an altitude of -51 deg. (At predicted centre line for longitude E 05 deg)

There is a 1 sigma uncertainty interval of  ±  1.65 path widths.
The probabilities to see a positive event:

Centre line: ~  24 %
Path limits: ~  23 %
1 sigma lines:  ~ 11 %
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/2009_01/0126_1076_18730.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090126_18730_Sites.txt

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

Good luck with your observation!

Oliver Klös

IOTA-ES

(1076) Viola, 2009 Jan 26, Station Map WEST(1076) Viola, 2009 Jan 26, Station Map EAST