Station Map for the Occultation by (429) Lotis at Monday, 2011 December 05 (~ 01:27 UT)

V-Magnitude of target star TYC 0751-01199-1: 11.1 mag
Johnson B-V Colour Index: + 0.1
UCAC instrumental “pseudo-R” fit-model magnitude: 11.1 mag (data from UCAC3)

The max duration is expected to be 8.5 sec with a max drop of 2.4 mag.
The event will take place at an altitude of 46 deg and at azimuth 170 deg. The sun will be at an altitude of -52 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ± 0.45 path widths.
The probabilities to see a positive event:

Centre line: ~ 74 %
Path limits: ~ 49 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_12/1205_429_24303.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111205_24303_Sites.txt

Good luck with your observation!

Oliver Klös
IOTA-ES

Station Map for the Occultation by (678) Fredegundis at Monday, 2011 December 05 (~ 01:04 UT)

Magnitude of target star 2UCAC 41000024: 13.0 mag
UCAC instrumental “pseudo-R” fit-model magnitude: 13.2 mag (data from UCAC3)

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

The max duration is expected to be 5.9 sec with a max drop of 0.29 mag.
The event will take place at an altitude of 62 deg and at azimuth 167 deg. The sun will be at an altitude of -56 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ± 1.51 path widths.
The probabilities to see a positive event:

Centre line: ~ 26 %
Path limits: ~ 25 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_12/1205_678_28884.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111205_28884_Sites.txt

Good luck with your observation!

Oliver Klös
IOTA-ES

Station Maps for the Occultation by (156) Xanthippe at Sunday, 2011 December 04 (~ 21:53 UT)

WEST and EAST

V-Magnitude of target star TYC 1328-00661-1: 11.5 mag
Johnson B-V Colour Index: + 0.5
UCAC instrumental “pseudo-R” fit-model magnitude: 11.5 mag (data from UCAC3)

The max duration is expected to be 9.4 sec with a max drop of 1.9 mag.
The event will take place at an altitude of 39 deg and at azimuth 110 deg. The sun will be at an altitude of -58 deg. (At predicted centre line for longitude E 05 deg)

There is a 1 sigma uncertainty interval of  ± 0.39 path widths.
The probabilities to see a positive event:

Centre line: ~ 80 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_12/1204_156_24302.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111204_24302_Sites.txt

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

Good luck with your observation!

Oliver Klös
IOTA-ES

Station Map for the Occultation by (116) Sirona at Sunday, 2011 December 04 (~ 02:53 UT)

V-Magnitude of target star TYC 0282-00753-1: 7.7 mag
UCAC instrumental “pseudo-R” fit-model magnitude: 6.8 mag (data from UCAC3)

The max duration is expected to be 3.3 sec with a max drop of 5.1 mag.
The event will take place at an altitude of 19 deg and at azimuth 113 deg. The sun will be at an altitude of -38 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 0.70 path widths.
The probabilities to see a positive event:

Centre line: ~ 52 %
Path limits: ~ 42 %
1 sigma lines: ~ 15 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_12/1204_116_24872.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111204_24872_Sites.txt

Good luck with your observation!

Oliver Klös
IOTA-ES

Station Map for the Occultation by (759) Vinifera at Thursday, 2011 December 01 (~ 23:00 UT)

V-Magnitude of target star TYC 3301-00340-1: 10.3 mag
Johnson B-V Colour Index: + 0.9
UCAC instrumental “pseudo-R” fit-model magnitude: 9.9 mag (data from UCAC3)

The max duration is expected to be 3.9 sec with a max drop of 4.2 mag.
The event will take place at an altitude of 73 deg and at azimuth 295 deg. The sun will be at an altitude of -68 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 0.72 path widths.
The probabilities to see a positive event:

Centre line: ~ 52 %
Path limits: ~ 42 %
1 sigma lines: ~ 15 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_12/1201_759_24294.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111201_24294_Sites.txt

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

Good luck with your observation!

Oliver Klös
IOTA-ES

Station Map for the Occultation by (2453) Wabash at Thursday, 2011 December 01 (~ 21:14 UT)

V-Magnitude of target star TYC 2416-00024-1: 9.1 mag
Spectral type K2
Johnson B-V Colour Index: + 1.3
UCAC instrumental “pseudo-R” fit-model magnitude: 8.5 mag (data from UCAC3)

The max duration is expected to be 1.6 sec with a max drop of 6.5 mag.
The event will take place at an altitude of 56 deg and at azimuth 97 deg. The sun will be at an altitude of -53 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 4.44 path widths.
The probabilities to see a positive event:

Centre line: ~ 9 %
Path limits: ~ 9 %
1 sigma lines: ~ 5 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_12/1201_2453_25403.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111201_25403_Sites.txt

Good luck with your observation!

Oliver Klös
IOTA-ES

Station Map for the Occultation by (883) Matterania at Tuesday, 2011 November 29 (~ 03:16 UT)

V-Magnitude of target star TYC 01801-00686-1: 9.5 mag
Johnson B-V Colour Index: + 1.2
UCAC instrumental “pseudo-R” fit-model magnitude: 9.1 mag (data from UCAC3)

The max duration is expected to be 1.1 sec with a max drop of 5.6 mag.
The event will take place at an altitude of 28 deg and at azimuth 277 deg. The sun will be at an altitude of -34 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 2.78 path widths.
The probabilities to see a positive event:

Centre line: ~ 14 %
Path limits: ~ 14 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_11/1129_883_25395.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111129_25395_Sites.txt


Good luck with your observation!

Oliver Klös
IOTA-ES

V-Magnitude of target star TYC 0089-01212-1: 10.2 mag
Spectral type: F0
Johnson B-V Colour Index: + 0.9
UCAC instrumental “pseudo-R” fit-model magnitude: 9.7 mag (data from UCAC3)

 Trans-Atlantic-Event!

Path will cross SE U.S.A. and Mexico too.

The max duration is expected to be 1.1 sec with a max drop of 6.6 mag.
The event will take place at an altitude of 36 deg and at azimuth 233 deg. The sun will be at an altitude of -42 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 5.65 path widths.
The probabilities to see a positive event:

Centre line: ~ 7 %
Path limits: ~ 7 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_11/1128_6479_25392.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111128_25392_Sites.txt

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

Good luck with your observation!

Oliver Klös
IOTA-ES

(22) Kalliope:

In the case of an occultation, the combined light of the asteroid and the star will drop by 0.5 mag to 10.5 mag.

The max duration is expected to be 22.8 sec with a max drop of 0.5 mag.
The event will take place at an altitude of 31 deg and at azimuth 278 deg. The sun will be at an altitude of -06 deg. (At predicted centre line for latitude N 60 deg 13 min)

There is a 1 sigma uncertainty interval of  ± 0.65 path widths.
The probabilities to see a positive event:

Centre line: ~ 56 %
Path limits: ~ 44 %
1 sigma lines:  ~ 15 %
2 sigma lines: ~ 2 %

Linus:
Calculated by Jean Lecacheux using IMCCE data.

“I have calculated with Occult the LINUS prediction by assuming that the large NE shift of Kalliope’s path on Nov. 22  was caused by the star alone,
so will not happen again. The LINUS offset relative to Kalliope is (-118.4 mas, -13.0 mas),  according to the IMCCE.” (J. Lecacheux)

The max duration is expected to be 3.8 sec with a max drop of 0.26 mag.
The event will take place at an altitude of 33 deg and at azimuth 274 deg. The sun will be at an altitude of -08 deg. (At predicted centre line for latitude N 60 deg 36 min)

There is a 1 sigma uncertainty interval of  ± 1.19 path widths.
The probabilities to see a positive event:

Centre line: ~ 33 %
Path limits: ~ 30 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
(22) Kalliope:
http://asteroidoccultation.com/2011_11/1126_22_24284.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
(22) Kalliope:
http://www.poyntsource.com/New/Google/20111126_24284_Sites.txt

Good luck with your observation!

Oliver Klös
IOTA-ES

Maps for (22) Kalliope

Map for Linus

V-Magnitude of target star TYC 1312-01598-1: 8.7 mag
Spectral type: F0
Johnson B-V Colour Index: + 0.3
UCAC instrumental “pseudo-R” fit-model magnitude: 8.4 mag (data from UCAC3)

The max duration is expected to be 1.8 sec with a max drop of 7.8 mag.
The event will take place at an altitude of 47 deg and at azimuth 123 deg. The sun will be at an altitude of -63 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ± 4.69 path widths.
The probabilities to see a positive event:

Centre line: ~ 9 %
Path limits: ~ 8 %
1 sigma lines:  ~ 5 %
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 your station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2011_11/1125_4342_25387.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20111125_25387_Sites.txt

Good luck with your observation!

Oliver Klös
IOTA-ES