2003 QY90

System parameters

Heliocentric orbitPhotometry Position 2022/03/21 22:19 UTC
DES class = CLASSICAL HV = 6.93±0.03 +23:14:31.52 -08:24:53.4
<a> = 42.81 (AU) V = 23.4 (V2 = 24.2) Uncertainty = 0.3 (arcsec)
<e> = 0.057 Δmag = 0.03 Rates: +3.429, +1.360 ("/hr)
<i> = 2.21 (degrees) B-V = NULL  
Perihelion = 2141 V-R = NULL Opposition: September
Aphelion = 2000    

Astrometric observations

Observation time (UTC)Observatory/InstrumentRADEC Δ (AU)Δx (arcsec) Δx errorΔy (arcsec) Δy error
2003/10/23  01.21416 Magellan/Unknown +21:45:56.52 -16:04:19.9 44.55711 +0.33590 0.02630 -0.23520 0.03150
2004/09/13  02.86848 Magellan/Unknown +21:52:27.69 -15:35:58.8 44.06464 +0.32910 0.01320 -0.19000 0.01790
2005/06/08  09.43752 Magellan/Unknown +22:02:40.80 -14:42:42.1 44.61508 +0.23210 0.00990 -0.15660 0.00980
2005/06/09  08.11824 Magellan/Unknown +22:02:39.94 -14:42:50.6 44.60010 +0.23760 0.02010 -0.16630 0.02020
2005/07/09  07.93632 Magellan/Unknown +22:01:37.76 -14:50:12.7 44.19168 +0.31790 0.01250 -0.16900 0.01730
2005/07/25  02.27403 Magellan/Unknown +22:00:45.88 -14:55:34.2 44.03872 +0.32118 0.00058 -0.16998 0.00249
2005/08/09  04.69440 HST/ACS-HRC +21:59:40.48 -15:01:45.7 43.97550 +0.31880 0.00440 -0.14200 0.00580
2005/08/14  23.20416 HST/ACS-HRC +21:59:18.77 -15:03:50.2 43.95227 +0.32174 0.00108 -0.15645 0.00064
2005/09/04  11.73144 HST/ACS-HRC +21:57:49.36 -15:11:47.7 43.98993 +0.30756 0.00151 -0.13804 0.00114
2006/09/17  21.00768 HST/ACS-HRC +22:01:37.97 -14:55:01.4 44.06206 +0.19047 0.00112 -0.04018 0.00177
2007/10/11  09.45194 HST/WFPC2-PC +22:04:58.10 -14:39:52.1 44.31662 -0.06438 0.00148 +0.07545 0.00179
2009/05/10  02.14639 HST/WFPC2-PC +22:20:39.34 -13:15:05.1 45.17737 +0.10401 0.00103 +0.03098 0.00387

Orbital knowledge

Comments: Orbit published here.
Parameter Value Units
P period309.6±0.2days
a semimajor axis8550±100kilometers
e eccentricity0.663±0.009dimensionless
i inclination41.8±0.6degrees
ε mean longitude at epoch313±1degrees
Ω longitude of ascending node113.6±0.4degrees
ϖ longitude of periapsis287±1degrees

Angles are referenced to J2000 equatorial coordinates.

Epoch = Julian date 2453500.0

2022/03/21 22:19


Last updated: 2022/03/21 22:19 UTC