2015-03-14 15h39 to 15h48
(136108) Haumea
Occulted star mag 10.7 V
Overview
Asteroid (136108) Haumea is a triple system. The satellites
Hiiaka (320 km) and Namaka (160 km) were discovered in 2005.
For Namaka, we have 30 astrometric positions spanning on 1175 days and 64 revolutions.
The mean of OmC is 17 mas. Last observations were in 2008. The satellite orbit is
poorly determined due the lake of observations since 2008.
For Hiiaka, we have 37 astrometric positions spanning on 2263.6 days and 46 revolutions.
The mean of OmC is 10 mas. Last observations were in 2008.
Few data were obtained the day of event by J.L. Ortiz from La Hita Observatory giving :
# RESULTS FOR STAR :
# Mean RA decimal = 210.94947011495688 deg +- 58 mas
# Mean DEC decimal = 17.676660440618956 deg +- 29 mas
# Mean RA sexagesimal = 14 3 47.872828
# Mean DEC sexagesimal = +17 40 35.977586
# RESULTS FOR ASTEROID :
# Mean OFFSET RA = -197 +- 122
# Mean OFFSET DEC = -13 +- 59
We base our last prediction on these offset for asteroid, and star position.
Namaka miss the earth while Hiiaka come in.
Due to the large uncertainty, the lake of time, the bright of star, everybody who can
observe everywhere on earth should try to get it.
Clear skies
Fred
- 2015-03-13 : Create prediction
- 2015-03-14 : Update prediction with astrometric position given by JL Ortiz from La Hita Observatory
Prediction for (136108) Haumea (wide views)
Prediction for Hiiaka (wide views)
with KML
Prediction for Namaka (wide views)
Ephemeris
Ephemeris from Miriade for the date of occultation and geocenter frame. For more specific ephemeris please use the documentation of Miriade.
Contents
- Orbital solution fitted by Genoid project (Vachier F., Berthier J. & Carry B.) IMCCE/CNRS
- Ephemeris has made available with Miriade Project (Berthier J. & Vachier F.) IMCCE/CNRS
- Occultation Prediction by Vachier F. using Occult 4.1.4.2 (Occultation Prediction Software by D.Herald)
- Ephemeris and offset based on ASTORB (Edward Bowell)