119979 (2002 WC19)

System parameters

Heliocentric orbitPhotometry Position 2019/03/14 22:42 UTC
DES class = 2:1E HV = 5.0±0.5 +05:47:14.42 +20:02:15.8
<a> = 47.80 (AU) V = 21.1 (V2 = 24.2) Uncertainty = 0.2 (arcsec)
<e> = 0.259 Δmag = 3.10 Rates: +0.372, +0.314 ("/hr)
<i> = 7.67 (degrees) B-V = NULL  
Perihelion = 2057 V-R = 0.65±0.01 Opposition: December
Aphelion = 2221    

Astrometric observations

Observation time (UTC)Observatory/InstrumentRADEC Δ (AU)Δx (arcsec) Δx errorΔy (arcsec) Δy error
2006/11/05  23.40024 HST/ACS-HRC +04:45:34.25 +16:27:11.0 42.35091 -0.08206 0.00098 -0.06622 0.00106
2007/08/06  19.34889 HST/WFPC2-PC +04:51:37.75 +16:56:15.2 43.52634 +0.07217 0.01519 +0.03954 0.00552
2007/08/25  20.53500 HST/WFPC2-PC +04:52:31.68 +16:55:57.5 43.21349 -0.11345 0.00208 -0.05654 0.00381
2009/09/30  21.43639 HST/WFC3-UVIS +05:03:31.46 +17:30:08.8 42.14257 -0.01157 0.00749 -0.05710 0.01716
plus proprietary data                

Orbital knowledge

Comments: Orbit known, pending publication.
Parameter Value Units
P period8.403±0.001days
a semimajor axis4090±90kilometers
e eccentricity0.20±0.05dimensionless

Breaking the mirror ambiguity...

2019/03/14 22:42

Last updated: 2019/03/14 22:42 UTC