Wednesday 17th of February 2016 ~ 01:26:41 UTC (50000) Quaoar occult 4UC 372-106849(mag 15.8)


  • Download the Google Earth File KMZ
  • green line is the central line of (50000) Quaoar
  • blue lines show the estimate size of (50000) Quaoar
  • red lines the 1-sigma error for the path
  • white lines show Weywot
Event
  • Max duration : 60.5 seconds
  • Mag drop : 3.2
  • Shadow velocity : 20.8 km/s
  • Ingress Earth : 2016-02-17 1h21
  • Egress Earth  : 2016-02-17 1h32
  • Moon illumination : 69%
  • Moon phase : Waxing gibbous
Asteroidal system
  • Name : (50000) Quaoar
  • Mag : 18.9
  • Asteroid Diameter : 1260 km
  • Geocentric distance : 43.465 AU
  • Number of satellite : 1
  • Satellite : Weywot
  • Diameter : 90 km
  • Max duration : 4.3 sec
Occulted Star
  • Name : 4UC 372-106849
  • Used RA   :   17:55:22.4409 J2000
  • Used DEC : -15:41:03.315 J2000
  • Mv : 15.8
  • VizieR - Aladin
Historic
  • 2015-07-01 : Create prediction
Prediction for (50000) Quaoar and Weywot (wide views)

Quaoar

Quaoar

Weywot

Weywot
Ephemerides from IMCCE

Ephemeris for (50000) Quaoar

Ephemeris for Weywot

Ephemeris from Miriade for the date of occultation and geocenter frame. For more specific ephemeris please use the documentation of Miriade.

Orbitography for the (50000) Quaoar system

Weywot

Weywot

Astrometric observations centered on (50000) Quaoar.
Dot represents one observed position. The vector shows ephemeris position from observed position.

Weywot

Weywot

Geometry of orbit for the (50000) Quaoar system view from Earth
  • Cyan circle show the position of the satellite Weywot at the occultation date.
  • The black dots show next positions during almost a period
  • In the center, (50000) Quaoar represented by an ellipsoid
    • Contents
    • Orbital solution fitted by Genoid project (Vachier F., Berthier J., Carry B. & M. Pajuelo) IMCCE/CNRS
    • Ephemeris has made available with Miriade Project (Berthier J. & Vachier F.) IMCCE/CNRS
    • Occultation Prediction by Vachier F. using Occult (Occultation Prediction Software by D.Herald)
    • Ephemeris and offset based on ASTORB (Edward Bowell)