2015 stellar Occultations by TNOs and Centaurs: Campaigns

Here you find predictions to selected stellar occultations by TNOs/Centaurs, that are under campaign. We will do our best to update the prediction maps, so be alert for changes in this page (last update on 28/June/2015). If you can observe (or know who can) any of these occultations, please contact us (ribas-at-on.br or bruno.sicardy-at-obspm.fr).

More information about the predictions can be found in Bruno Sicardy's web page and in Assafin et al. 2010 (for Pluto system predictions), Assafin et al. 2012 (for the TNO predictions) and Camargo et al. 2014 (for TNO and Centaur predictions). Please, do references about the predictions to Assafin et al. 2010 and 2012 or Camargo et al 2014 papers. Some predictions are done with our own ephemeris, this is indicated on the top of the maps as NIMA ephem. NIMA-ephemeris is calculated by Josselin Desmars and provided by a numerical integration of the motion of the asteroid and by a fit to asteroid's observations. The observations come from Minor Planet Center and our own observations made at ESO, Pic du Midi, Calar Alto, Sierra Nevada and Observatorio do Pico dos Dias.

Visit Bruno Sicardy's bibliogaphy web page too see some of our publications.

Informations about the maps (please read at least once!):
- The straight and continue lines are the shadow limits considering the estimated radius;
- Each red dot is spaced by one minute, the nominal occultation time is to the big red dot (that is the geocentric closest approach);
- The arrow shows the direction of the shadow motion.
- For Pluto and  Charon, the error is about 800km, and for the other TNOs it can be as big as 3000km.
- The star R* and K* are the R and K magnitudes, normalized to a body moving at 20km/s.

- The body offset is at the upper left corner, if JPL ephemeris is used.
- Be careful, the dates are from the moment of the event in Universal Time, the night of the event may begin at the date before.


2015

January  February  March  April  May  June  July  August  September  October   November  December

June
Be alerted for this great event of 2015.
An occultation of a 12 R magnitude star by Pluto, about15 days before the passage of the space probe New Horizons through the system!
A great opportunity to compare and link ground based and space based observations of Pluto!
Date Object Star R magnitude Map Other information
29/06 Pluto
R= 12
2015-06-29_Pluto/2015-06-29-16.907_NIMA30may_avrg_Pluto.jpg Click on the maps to see more info!
2015-06-29_Pluto/2015-06-29-16.892_IAGavrgCFHT_NH_Pluto.jpg
Prediction originally published on:
Assafin et al. 2010

Last updates are coherent with the latest predictions. Uncertainty is of about one Pluto radius!

Date Object Star R magnitude Map Other information
29/06 Nix
15.0
2015-06-29-05.585_IAG26apr_MBuie_Nix.jpg
29/06 Pluto
12.1
2015-06-29_Pluto/2015-06-29-16.907_NIMA30may_avrg_Pluto.jpg
Click on the maps to see more info! 2015-06-29_Pluto/2015-06-29-16.892_IAGavrgCFHT_NH_Pluto.jpg
Prediction originally published on:
Assafin et al. 2010
30/06 Quaoar
18.5
2015-06-30-22.487_NIMA3_Quaoar.jpg





July
Date Object Star R magnitude Map Other information
12/07 Chariklo
R= 15
2015-07-12-06.872_NIMA3_Chariklo.jpg
13/07 Crantor
R= 15.5
2015-07-13-00.114_NIMA3_Crantor.jpg
14/07 2002 KX14
R= 18
2015-07-14-03.199_NIMA3_2002KX14.jpg
15/07 Quaoar
R= 15.5
2015-07-15-05.255_NIMA3_Quaoar.jpg Updated 26 April 2015!
2015-07-15-05.206_IAG26apr_Quaoar.jpg
15/07 Chariklo
R= 15
2015-07-15-07.982_NIMA3_Chariklo.jpg
18/07 Ixion
R= 18
2015-07-18-03.724_NIMA3_Ixion.jpg
18/07 Chariklo
R= 14.3
2015-07-18-10.511_NIMA3_Chariklo.jpg
21/07 Amycus
R= 15.4
2015-07-21-03.976_Amycus.jpg
22/07 Chariklo
R= 15
2015-07-22-03.521_NIMA3_Chariklo.jpg
26/07
5-6h UT
Nix
R= 15.7
2015-07-26-05.424_IAG26apr_MBuie_Nix.jpg Triple event:
Pluto, Nix and Kerberos
26/07
5-6h UT
Pluto
R= 15.7
2015-07-26-05.910_IAG26apr_MBuie_Pluto.jpg Triple event:
Pluto, Nix and Kerberos
26/07
5-6h UT
Kerberos
R= 15.7
2015-07-26-06.431_IAG26apr_MBuie_P4.jpg Triple event:
Pluto, Nix and Kerberos
26/07
21-22h
UT
Charon
R= 15.3
2015-07-26-21.427_IAG26apr_MBuie_Charon.jpg
Triple event:
Pluto, Charon and Kerberos
26/07
21-22h
UT
Pluto
R= 15.3
2015-07-26-21.612_IAG26apr_MBuie_Pluto.jpg
Triple event:
Pluto, Charon and Kerberos
26/07
21-22h
UT
Kerberos
R= 15.3
2015-07-26-22.147_IAG26apr_MBuie_P4.jpg
Triple event:
Pluto, Nix and Kerberos




Web page created and maintained by
 Felipe Braga Ribas