Heliocentric orbit | Photometry | Position 2022/03/21 22:19 UTC |
DES class = CLASSICAL | HV = 7.35±0.02 | +23:27:22.95 -06:22:15.2 |
<a> = 38.09 (AU) | V = 23.1 (V2 = 23.9) | Uncertainty = 3.0 (arcsec) |
<e> = 0.018 | Δmag = 0.09 | Rates: +4.126, +1.679 ("/hr) |
<i> = 2.59 (degrees) | B-V = NULL | |
Perihelion = 2057 | V-R = NULL | Opposition: September |
Aphelion = 2175 |
Observation time (UTC) | Observatory/Instrument | RA | DEC | Δ (AU) | Δx (arcsec) | Δx error | Δy (arcsec) | Δy error |
2002/10/04 14.35910 | HST/NICMOS-NIC2 | +21:24:55.73 | -16:05:38.2 | 37.55838 | -0.03528 | 0.00416 | +0.07056 | 0.01008 |
2005/07/24 16.98776 | HST/ACS-HRC | +21:49:08.21 | -14:25:27.7 | 37.15639 | +0.09392 | 0.00056 | +0.03652 | 0.00057 |
2007/07/05 23.30583 | HST/WFPC2-PC | +22:02:41.41 | -13:26:19.5 | 37.32587 | -0.01522 | 0.00222 | -0.14436 | 0.00127 |
2007/07/07 10.59333 | HST/WFPC2-PC | +22:02:36.58 | -13:26:49.5 | 37.30862 | -0.02094 | 0.00165 | -0.14481 | 0.00100 |
2007/07/12 21.10167 | HST/WFPC2-PC | +22:02:17.38 | -13:28:47.3 | 37.24887 | -0.05148 | 0.00281 | -0.13556 | 0.00100 |
2007/08/01 22.20167 | HST/WFPC2-PC | +22:00:51.66 | -13:37:12.1 | 37.09062 | -0.07347 | 0.00233 | +0.00338 | 0.00446 |
2007/08/24 09.42055 | HST/WFPC2-PC | +21:58:59.80 | -13:47:41.0 | 37.04478 | +0.10699 | 0.00247 | +0.00925 | 0.00137 |
2012/08/06 12.01528 | GEMINI/NIRI | +23:04:11.93 | +19:40:43.6 | 43.61963 | -0.04287 | 0.05000 | -0.08995 | 0.05000 |
2013/10/25 05.51688 | Keck/NIRC2 | +22:31:48.59 | -11:22:24.8 | 37.32424 | -0.03725 | 0.00100 | +0.05050 | 0.00100 |
2015/09/05 11.96080 | Keck/NIRC2 | +22:47:39.58 | -10:01:26.9 | 36.80695 | +0.04715 | 0.00256 | +0.07722 | 0.00312 |
Comments: Orbit published here, and updated here.
Parameter | Value | Units |
P period | 84.115±0.005 | days |
a semimajor axis | 3310±20 | kilometers |
e eccentricity | 0.368±0.004 | dimensionless |
i inclination | 53.6±0.7 | degrees |
ε mean longitude at epoch | 37.5±0.9 | degrees |
Ω longitude of ascending node | 276±1 | degrees |
ϖ longitude of periapsis | 330.2±0.6 | degrees |
Angles are referenced to J2000 equatorial coordinates.
Epoch = Julian date 2454000.0
Last updated: 2022/03/21 22:19 UTC