119979 (2002 WC19)

System parameters

Heliocentric orbitPhotometry Position 2019/06/20 03:22 UTC
DES class = 2:1E HV = 5.0±0.5 +05:54:50.96 +20:12:40.4
<a> = 47.80 (AU) V = 21.0 (V2 = 24.2) Uncertainty = 0.2 (arcsec)
<e> = 0.259 Δmag = 3.10 Rates: +4.669, +0.128 ("/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
2009/12/12  08.32710 Keck/NIRC2 +04:58:54.72 +17:20:54.8 41.48931 -0.08950 0.00053 -0.02203 0.00229
2013/10/12  00.53694 HST/WFC3-UVIS +05:25:59.48 +18:39:55.4 41.09585 +0.10583 0.00472 +0.01561 0.00430
2014/01/03  14.29401 HST/WFC3-UVIS +05:19:57.99 +18:34:07.4 40.59104 +0.08201 0.00593 +0.03203 0.01156

Orbital knowledge

Comments: Orbit published here.
Parameter Value Units
P period8.403±0.001days
a semimajor axis4090±90kilometers
e eccentricity0.20±0.05dimensionless

Breaking the mirror ambiguity...

2019/06/20 03:22

Last updated: 2019/06/20 03:22 UTC