Sunday, the 16 of June, 2019 ~ 18:35:37 UTC (22) Kalliope occult UCAC4 303-139643 (mag 10.37)


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  • Legend
    • green line is the central line of (22) Kalliope
    • blue lines show the estimate size of (22) Kalliope
    • red lines the 1-sigma error for the path
    • white lines show satellite
Event
  • Date : Sunday, the 16 of June, 2019 ~ 18:35:37 UTC
  • Max duration : 11.9 seconds
  • Shadow velocity : 14.2 km/s
  • Barycenter prediction : Astorb2018Nov09
Asteroidal system
  • Name : (22) Kalliope
  • Mag : 10.86
  • Geocentric distance : 2.1630 AU
  • Number of Components : 2
  • Component : Kalliope
  • Diameter : 169.1 km
  • Max duration : 11.9 sec
  • Component : Linus
  • Diameter : 28.0 km
  • Max duration : 2.0 sec
Occulted Star
  • Name : UCAC4 303-139643
  • Used RA   :   17h28m37s2 J2000
  • Used DEC : -29d29m23s1 J2000
  • Mb : 12.21
  • Mv : 10.37
  • Mr : 9.38
  • VizieR - Aladin
Historic
  • 2019-01-22 : Create prediction
Prediction for (22) Kalliope system. (wide views)

Kalliope

Kalliope

Kalliope

Kalliope

Linus

Linus

Linus

Linus
Ephemerides from IMCCE

Ephemeris for Kalliope

Ephemeris for Linus

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

Orbitography for the (22) Kalliope system

All components on the tangent plane

Linus
Propagation of the solutions
We use all orbits from 1,2 and 3 sigma issued from Genetical algorithm, and we see where the satellite is for the occultation date. North on top, and East on right.
  • Center at coordinates 0,0 is Primary
  • Black dots show the orbit with the best solution at the date of occultation
  • Green zone show orbits covering 1-sigma error
  • Blue zone for 2-sigma
  • Red zone for 3-sigma

Linus

Linus
This figure represent 338199 orbits computed to the occultation date. Each orbit is classify throw its performance, given an accuracy in kilometer :
  • 1-σ error = 289 km
  • 2-σ error = 305 km
  • 3-σ error = 339 km
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 (Occultation Prediction Software by D.Herald)
  • Ephemeris and offset based on ASTORB (Edward Bowell)