119979 (2002 WC19)
System parameters
| Heliocentric orbit | Photometry |
Position 2022/03/21 22:18 UTC |
| DES class = 2:1E |
HV = 5.0±0.5 |
+06:06:15.21 +20:45:11.6 |
| <a> = 47.80 (AU) |
V = 21.0 (V2 = 24.1) |
Uncertainty = 0.2 (arcsec) |
| <e> = 0.257 |
Δmag = 3.10 |
Rates: +0.603, +0.264 ("/hr) |
| <i> = 7.76 (degrees) |
B-V = NULL |
|
| Perihelion = 2056 |
V-R = 0.65±0.01 |
Opposition: December |
| Aphelion = 2221 |
|
|
Astrometric observations
| Observation time (UTC) | Observatory/Instrument | RA | DEC |
Δ (AU) | Δx (arcsec) |
Δx error | Δy (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 period | 8.403±0.001 | days |
| a semimajor axis | 4090±90 | kilometers |
| e eccentricity | 0.20±0.05 | dimensionless |
Breaking the mirror ambiguity...
Last updated: 2022/03/21 22:18 UTC