Gonggong (225088 2007 OR10)

System parameters

Heliocentric orbitPhotometry Position 2021/05/29 21:04 UTC
DES class = 10:3EEEEEEE HV = 2.2±0.5 +22:29:01.22 -11:14:00.6
<a> = 67.19 (AU) V = 21.7 (V2 = 25.9) Uncertainty = 0.0 (arcsec)
<e> = 0.448 Δmag = 4.20 Rates: +0.018, +0.031 ("/hr)
<i> = 34.69 (degrees) B-V = NULL  
Perihelion = 2410 V-R = NULL Opposition: August
Aphelion = 2133    

Astrometric observations

Observation time (UTC)Observatory/InstrumentRADEC Δ (AU)Δx (arcsec) Δx errorΔy (arcsec) Δy error
2009/11/06  17.21663 HST/WFC3 +22:14:19.34 -14:45:01.7 85.26055 +0.01345 0.00374 -0.45157 0.00110
2010/09/18  15.97319 HST/WFC3 +22:16:30.31 -14:24:45.5 85.26055 -0.21949 0.00341 +0.12703 0.00574
2017/10/03  16.25880 HST/WFC3 +22:22:02.00 -12:34:44.6 87.06755 -0.16538 0.00765 +0.15347 0.01518
2017/10/11  08.49024 HST/WFC3 +22:21:48.18 -12:35:40.6 87.16141 -0.25816 0.00728 -0.40461 0.00468
2017/10/18  05.80344 HST/WFC3 +22:21:37.35 -12:36:20.9 87.25623 +0.12990 0.00051 -0.36509 0.00206
2017/12/05  06.07224 HST/WFC3 +22:21:15.01 -12:35:45.7 88.07528 -0.01446 0.00596 -0.44834 0.00117
plus proprietary data                

Orbital knowledge

Comments: Orbit published here. Mirror ambiguity remains.
Parameter Value Units
P period25.222±0.002days
a semimajor axis24100±300kilometers
e eccentricity0.29±0.01dimensionless

Breaking the mirror ambiguity...

2021/05/29 21:04

Last updated: 2021/05/29 21:04 UTC