Saturday, the 28 of September, 2019 ~ 11:15:01 UTC (379) Huenna occult TYC 6308-01733-1 (mag 10.89)


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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 : Saturday, the 28 of September, 2019 ~ 11:15:01 UTC
  • Max duration : 8.1 seconds
  • Shadow velocity : 10.9 km/s
  • Barycenter prediction : Astorb2019Jun25
Asteroidal system
  • Name : (379) Huenna
  • Mag : 13.84
  • Geocentric distance : 2.2710 AU
  • Number of Components : 2
  • Component : Huenna
  • Diameter : 88.0 km
  • Max duration : 8.1 sec
  • Component : S2003-379-1
  • Diameter : 6.0 km
  • Max duration : 0.5 sec
Occulted Star
  • Name : TYC 6308-01733-1
  • Used RA   :   19h17m43s9 J2000
  • Used DEC : -20d53m32s6 J2000
  • Mb : 12.17
  • Mv : 10.89
  • Mr : 10.20
  • VizieR - Aladin
Historic
  • 2019-06-25 : Create prediction
Prediction for (379) Huenna system. (wide views)

Huenna

Huenna

Huenna

Huenna

S2003-379-1

S2003-379-1

S2003-379-1

S2003-379-1
Ephemerides from IMCCE

Ephemeris for Huenna

Ephemeris for S2003-379-1

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

Orbitography for the (379) Huenna system

S2003-379-1

S2003-379-1

Astrometric observations of S2003-379-1 centered on (379) Huenna.
Dot represents one observed position. The vector shows ephemeris position from observed position.
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

S2003-379-1

S2003-379-1
This figure represent 605840 orbits computed to the occultation date. Each orbit is classify throw its performance, given an accuracy in kilometer :
  • 1-σ error = 84 km
  • 2-σ error = 102 km
  • 3-σ error = 139 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)