2002 GH21

2002GH21, 1999 XW246, 1999XW246, 99591, J99XO6W, K02G21H

All data for this body: [vot]

MPC data
Name (number) 2002 GH21 (99591)
a 3.20060
e 0.13495
i / sin(i) 3.3118 / 0.05777
q 2.76866
Q 3.63253
ω 304.9170
Node 270.3997
m 4.6897
n 0.1721
Epoch 2460800.5
nobs 883
nopp 23
Years observed 1994-2025
rms 0.85
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.208
ep 0.155
sin(ip) 0.081
G 0.150
H 15.030
Mass
D 4.95 1.231
pV 0.087 0.0376
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.976
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2078 0.1549 0.0809 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.95 1.231 1.231 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.087 0.0376 0.0376 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.03 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B B 0.1968 0.1968 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.996 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT