| Heliocentric orbit | Photometry | Position 2022/03/21 22:17 UTC |
| DES class = 2:1E+6:3EII | HV = 6.1±0.1 | +03:06:29.15 +07:45:47.6 |
| <a> = 47.80 (AU) | V = 22.4 (V2 = 25.2) | Uncertainty = 0.1 (arcsec) |
| <e> = 0.375 | Δmag = 2.69 | Rates: +2.755, +1.110 ("/hr) |
| <i> = 13.14 (degrees) | B-V = 1.02±0.05 | |
| Perihelion = 1975 | V-R = 0.63±0.02 | Opposition: November |
| Aphelion = 2141 |
| Observation time (UTC) | Observatory/Instrument | RA | DEC | Δ (AU) | Δx (arcsec) | Δx error | Δy (arcsec) | Δy error |
| 2001/12/22 12.83881 | HST/STIS | +00:58:33.46 | +02:52:37.4 | 34.83040 | -0.18912 | 0.00315 | +0.10161 | 0.00100 |
| 2001/12/28 09.90777 | HST/STIS | +00:58:32.93 | +02:52:42.1 | 34.93584 | -0.23783 | 0.00160 | -0.01436 | 0.00100 |
| 2003/06/30 17.76930 | HST/ACS-HRC | +01:21:20.85 | +04:34:13.3 | 35.76803 | -0.23881 | 0.00050 | -0.45425 | 0.00088 |
| 2003/07/09 21.03822 | HST/ACS-HRC | +01:21:40.40 | +04:34:29.8 | 35.62429 | -0.21092 | 0.00051 | -0.54366 | 0.00124 |
| 2003/07/25 19.63302 | HST/ACS-HRC | +01:21:54.33 | +04:32:54.6 | 35.37240 | -0.13195 | 0.00050 | -0.61754 | 0.00050 |
| 2003/08/23 18.22014 | HST/ACS-HRC | +01:21:14.73 | +04:23:46.1 | 34.96570 | +0.06598 | 0.00074 | -0.40888 | 0.00085 |
| 2004/01/28 10.73298 | HST/ACS-HRC | +01:14:00.15 | +03:35:16.0 | 36.07537 | +0.03684 | 0.00050 | +0.22915 | 0.00050 |
| 2006/07/05 22.63950 | HST/ACS-HRC | +01:42:22.85 | +05:22:13.5 | 36.78095 | +0.07224 | 0.00079 | -0.28562 | 0.00050 |
| 2010/01/10 14.77028 | HST/WFC3-UVIS | +01:54:22.88 | +05:06:46.4 | 37.66306 | -0.03151 | 0.00369 | -0.51687 | 0.00360 |
| 2010/11/16 21.36861 | HST/WFC3-UVIS | +02:03:17.32 | +05:29:38.3 | 37.21596 | -0.07068 | 0.00314 | +0.14999 | 0.00175 |
Comments: Orbit published here, and updated here.
| Parameter | Value | Units |
| P period | 130.154±0.003 | days |
| a semimajor axis | 11374±8 | kilometers |
| e eccentricity | 0.4732±0.0006 | dimensionless |
| i inclination | 81.59±0.05 | degrees |
| ε mean longitude at epoch | 280.5±0.1 | degrees |
| Ω longitude of ascending node | 47.11±0.08 | degrees |
| ϖ longitude of periapsis | 115.0±0.1 | degrees |
Angles are referenced to J2000 equatorial coordinates.
Epoch = Julian date 2452700.0
Last updated: 2022/03/21 22:17 UTC