Tuesday, the 24 of December, 2019 ~ 04:35:15 UTC (93) Minerva occult TYC 2418-00154-1 (mag 12.17)


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  • Legend for each body
    • green line is the central line
    • blue lines show the estimate size
    • red lines the 1-sigma error for the path
Event
  • Date : Tuesday, the 24 of December, 2019 ~ 04:35:15 UTC
  • Max duration : 29.0 seconds
  • Shadow velocity : 14.6 km/s
  • Barycenter prediction : Astorb2019Jun25
Asteroidal system
  • Name : (93) Minerva
  • Mag : 12.42
  • Geocentric distance : 2.1669 AU
  • Number of Components : 3
  • Component : Minerva
  • Diameter : 142.0 km
  • Max duration : 9.7 sec
  • Component : Aegis
  • Diameter : 8.0 km
  • Max duration : 0.5 sec
  • Component : Gorgoneion
  • Diameter : 4.0 km
  • Max duration : 0.3 sec
Occulted Star
  • Name : TYC 2418-00154-1
  • Used RA   :   05h59m25s0 J2000
  • Used DEC : +35d50m37s2 J2000
  • Mb : 13.02
  • Mv : 12.17
  • Mr : 11.71
  • VizieR - Aladin
Historic
  • 2019-06-27 : Create prediction
Prediction for (93) Minerva system. (wide views)

Minerva

Minerva

Aegis

Aegis

Gorgoneion

Gorgoneion

Ephemerides from IMCCE

Ephemeris for Minerva

Ephemeris for Aegis

Ephemeris for Gorgoneion

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

Orbitography for the (93) Minerva system

Aegis

Aegis

Astrometric observations of Aegis centered on (93) Minerva.
Dot represents one observed position. The vector shows ephemeris position from observed position.

Gorgoneion

Gorgoneion

Astrometric observations of Gorgoneion centered on (93) Minerva.
Dot represents one observed position. The vector shows ephemeris position from observed position.

All components on the tangent plane

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

Aegis

Aegis
This figure represent 181512 orbits computed to the occultation date. Each orbit is classify throw its performance, given an accuracy in kilometer :
  • 1-σ error = 1257 km
  • 2-σ error = 1260 km
  • 3-σ error = 1275 km

Gorgoneion

Gorgoneion
This figure represent 181512 orbits computed to the occultation date. Each orbit is classify throw its performance, given an accuracy in kilometer :
  • 1-σ error = 49 km
  • 2-σ error = 64 km
  • 3-σ error = 79 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)