Archive for Februar, 2008

Freitag, Februar 29th, 2008

Station Map for the Occultation by (657) Gunlod at Friday, 2009 January 02 (~ 23:29 UT)

V-Magnitude of target star TYC 2403-00016-1: 11.4 mag
Johnson B-V Colour Index: + 0.5
The UCAC2 gives a „pseudo-R magnitude“ of 11.3 mag

The max duration is expected to be 3.5 sec with a max drop of 3.3 mag.
The event will take place at an altitude of 62 deg and at azimuth 224 deg. The sun will be at an altitude of -59 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ±  0.85 path widths.
The probabilities to see a positive event:

Centre line: ~  44 %
Path limits: ~  38 %
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/2009_01/0102_657_17126.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090102_17126_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

(657) Gunlod, 2009 Jan 02, Station Map

Freitag, Februar 29th, 2008

Station Map for the Occultation by (1758) Naantali at Friday, 2009 January 02 (~ 19:48 UT)

V-Magnitude of target star TYC 1337-01443-1: 10.3 mag
Johnson B-V Colour Index: + 0.9
The UCAC2 gives a „pseudo-R magnitude“ of 9.9 mag

The max duration is expected to be 2.1 sec with a max drop of 4.9 mag.
The event will take place at an altitude of 36 deg and at azimuth 95 deg. The sun will be at an altitude of -34 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ±  1.90 path widths.
The probabilities to see a positive event:

Centre line: ~ 21 %
Path limits: ~  20 %
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/2009_01/0102_1758_18837.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20090102_18837_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

(1758) Naantali, 2009 Jan 02, Station Map

Freitag, Februar 29th, 2008

Station Map for the Occultation by (35) Leukothea at Thursday, 2008 October 30  (~ 03:27 UT)

TRANS-ATLANTIC EVENT!
Path is crossing Canada and U.S.A. too.
Please coordinate stations with OccultWatcher !

V-Magnitude of target star TYC 1772-00826-1: 11.2 mag
Johnson B-V Colour Index: + 0.9
The UCAC2 gives a „pseudo-R magnitude“ of 10.9 mag

The max duration is expected to be 6.5 sec with a max drop of 2.7 mag.
The event will take place at an altitude of  37 deg and at azimuth 258 deg. The sun will be at an altitude of -24 deg. (At predicted centre line for longitude E 10 deg)

There is a 1 sigma uncertainty interval of  ±  0.41 path widths.
The probabilities to see a positive event:

Centre line: ~ 78 %
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.

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2008_10/1030_35_13253.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20081030_13253_Sites.txt

Coordinates and maps at the webpage of  E.A.O.N
(NOT updated with Steve Preston’s data):
http://astrosurf.com/eaon/Occultations%20October.htm

Good luck with your observation,

Oliver Klös

IOTA-ES

Station Map (35) Leukothea (Europe)

Donnerstag, Februar 28th, 2008

Station Maps for the Occultation by (4186) Tamashima at
Monday, 2008 October 27 (~ 22:09 UT)

NORTH and SOUTH

V-Magnitude of target star TYC 5331-01004-1: 9.8 mag
Johnson B-V Colour Index: + 0.6
The UCAC2 gives a „pseudo-R magnitude“ of 9.6 mag

The max duration is expected to be 3.1 sec with a max drop of 6.6 mag.
The event will take place at an altitude of 13 deg and at azimuth 119 deg. The sun will be at an altitude of -55 deg. (At predicted centre line for latitude N 47 deg)

There is a 1 sigma uncertainty interval of ± 5.99 path widths.
The probabilities to see a positive event:

Centre line: ~ 7 %
Path limits: ~ 7 %
1 sigma lines: ~ 4 %

(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/2008_10/1027_4186_14860.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20081027_14860_Sites.txt

Coordinates and maps at the webpage of E.A.O.N
(NOT updated with Steve Preston’s data):
http://astrosurf.com/eaon/Occultations%20October.htm

Good luck with your observation,

Oliver Klös

IOTA-ES

tamashimanorth.gif

tamashimasouth.gif

Donnerstag, Februar 28th, 2008

Station Map for the Occultation by (914) Palisana at
Wednesday, 2008 October 29 (~ 21:50 UT)

V-Magnitude of target star TYC 2820-01384-1: 11.4 mag
Johnson B-V Colour Index: -0.2
The UCAC2 gives a „pseudo-R magnitude“ of 11.6 mag

The max duration is expected to be 5.9 sec with a max drop of 1.2 mag.
The event will take place at an altitude of 79 deg and at azimuth 167 deg. The sun will be at an altitude of -53 deg. (At predicted centre line for longitude E 20 deg)

There is a 1 sigma uncertainty interval of ± 0.34 path widths.
The probabilities to see a positive event:

Centre line: ~ 86 %
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/2008_10/1029_914_13251.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20081029_13251_Sites.txt

Coordinates and maps at the webpage of E.A.O.N
(NOT updated with Steve Preston’s data):
http://astrosurf.com/eaon/Occultations%20October.htm

Good luck with your observation,

Oliver Klös

IOTA-ES

palisanamap.gif

Mittwoch, Februar 27th, 2008

Station Map for the Occultation by (743) Eugenisis at Wednesday, 2008 December 31 (~ 19:06 UT)

V-Magnitude of target star TYC 5777-00050-1: 10.2 mag
Spectral type: G0
Johnson B-V Colour Index: + 0.6
The UCAC2 gives a „pseudo-R magnitude“ of  10.2 mag

The max duration is expected to be 1.2 sec with a max drop of 5.5 mag.
The event will take place at an altitude of 10 deg and at azimuth 245 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  ±  1.11 path widths.
The probabilities to see a positive event:

Centre line: ~ 35 %
Path limits: ~  32 %
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/2008_12/1231_743_14024.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20081231_14024_Sites.txt

Good luck with your observation and „clear skies“ for 2009!!

Oliver Klös

IOTA-ES

(743) Eugenisis, 2008 Dec 31, Station Map

Mittwoch, Februar 27th, 2008

Station Map for the Occultation by (29) Amphitrite at Wednesday, 2008 December 31 (~ 05:05 UT)

Magnitude of target star 2UCAC 31689676: 11.8 mag

The max duration is expected to be 15.3 sec with a max drop of 0.34 mag only.
The event will take place at an altitude of 46 deg and at azimuth 167 deg. The sun will be at an altitude of -26 deg. (At predicted centre line for longitude 0 deg)

There is a 1 sigma uncertainty interval of  ±  0.25 path widths.
The probabilities to see a positive event:

Centre line: ~ 96 %
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/2008_12/1231_29_13442.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20081231_13442_Sites.txt

Good luck with your observation,

Oliver Klös

IOTA-ES

(29) Amphitrite, 2008 Dec 31, Station Map

Mittwoch, Februar 27th, 2008

Station Map for the Occultation by (29943) 1999 JZ78 at Wednesday, 2008 December 31 (~ 00:20 UT)

V-Magnitude of target star TYC 1906-00192-1: 9.8 mag
Johnson B-V Colour Index: + 0.4
The UCAC2 gives a „pseudo-R magnitude“ of  9.7 mag

The max duration is expected to be 2.0 sec with a max drop of 4.1 mag.
The event will take place at an altitude of 74 deg and at azimuth 204 deg. The sun will be at an altitude of -69 deg. (At predicted centre line for longitude E 05 deg)

There is a 1 sigma uncertainty interval of  ±  4.48 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 you station with OccultWatcher !

More information (coordinates, finder charts) at Steve Preston’s prediction:
http://asteroidoccultation.com/2008_12/1231_29943_15069.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20081231_15069_Sites.txt

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

Good luck with your observation,

Oliver Klös

IOTA-ES

(29943) 1999 JZ78, 2008 Dec 31, Station Map

Mittwoch, Februar 27th, 2008

Station Map for the Occultation by (105) Atemis at Tuesday, 2008 December 30 (~19:12 UT)

Magnitude of target star 2UCAC 28151691: 12.0 mag

The max duration is expected to be 8.7 sec with a max drop of 1.2 mag.
The event will take place at an altitude of 14 deg and at azimuth 124 deg. The sun will be at an altitude of -42 deg. (At predicted centre line for longitude E 20 deg)

There is a 1 sigma uncertainty interval of  ±  1.06 path widths.
The probabilities to see a positive event:

Centre line: ~  36 %
Path limits: ~  33 %
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/2008_12/1230_105_13441.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20081230_13441_Sites.txt

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

Good luck with your observation,

Oliver Klös

IOTA-ES

(105) Artemis, 2008 Dec 30, Station Map

Mittwoch, Februar 27th, 2008

Station Map for the Occultation by (506) Marion at Tuesday, 2008 December 30 (~ 01:04 UT)

V-Magnitude of target star TYC 0835-00953-1: 11.5 mag
Johnson B-V Colour Index: + 0.3
The UCAC2 gives a „pseudo-R magnitude“ of  11.3 mag

The max duration is expected to be 17.3 sec with a max drop of 1.9 mag.
The event will take place at an altitude of 58 deg and at azimuth 164 deg. The sun will be at an altitude of -50 deg. (At predicted centre line for longitude E 25 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/2008_12/1230_506_13439.htm

Table of potential observing stations and cities with distance from center of predicted path (Derek C. Breit):
http://www.poyntsource.com/New/Google/20081230_13439_Sites.txt

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

Good luck with your observation,

Oliver Klös

IOTA-ES

(506) Marion, 2008 Dec 30, Station Map