Thursday, the 28 of November, 2019 ~ 17:27:54 UTC (41) Daphne occult UCAC4 445-3237 (mag 12.04)


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  • Legend
    • green line is the central line of (41) Daphne
    • blue lines show the estimate size of (41) Daphne
    • red lines the 1-sigma error for the path
    • white lines show satellite
Event
  • Date : Thursday, the 28 of November, 2019 ~ 17:27:54 UTC
  • Max duration : 14.8 seconds
  • Shadow velocity : 12.7 km/s
  • Barycenter prediction : Astorb2018Nov09
Asteroidal system
  • Name : (41) Daphne
  • Mag : 12.63
  • Geocentric distance : 2.6611 AU
  • Number of Components : 2
  • Component : Daphne
  • Diameter : 187.4 km
  • Max duration : 14.8 sec
  • Component : S2008-41-1
  • Diameter : 2.3 km
  • Max duration : 0.2 sec
Occulted Star
  • Name : UCAC4 445-3237
  • Used RA   :   02h30m10s7 J2000
  • Used DEC : -01d07m25s7 J2000
  • Mb : 12.89
  • Mv : 12.04
  • Mr : 11.58
  • VizieR - Aladin
Historic
  • 2019-01-24 : Create prediction
Prediction for (41) Daphne system. (wide views)

Daphne

Daphne

Daphne

Daphne

S2008-41-1

S2008-41-1

S2008-41-1

S2008-41-1
Ephemerides from IMCCE

Ephemeris for Daphne

Ephemeris for S2008-41-1

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

Orbitography for the (41) Daphne system

All components on the tangent plane

S2008-41-1
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

S2008-41-1

S2008-41-1
This figure represent 3855754 orbits computed to the occultation date. Each orbit is classify throw its performance, given an accuracy in kilometer :
  • 1-σ error = 48 km
  • 2-σ error = 52 km
  • 3-σ error = 58 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)