2004 XH21

2004XH21, 1993 QR7, 1993QR7, C9107, J93Q07R, K04X21H

All data for this body: [vot]

MPC data
Name (number) 2004 XH21 (129107)
a 2.99073
e 0.16222
i / sin(i) 2.6410 / 0.04608
q 2.50557
Q 3.47588
ω 281.3289
Node 108.6820
m 10.1231
n 0.1906
Epoch 2460800.5
nobs 895
nopp 20
Years observed 1993-2024
rms 0.83
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.991
ep 0.130
sin(ip) 0.027
G 0.150
H 15.470
Mass
D 4.68 0.113
pV 0.074 0.0144
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.922
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9908 0.1296 0.0266 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.68 0.113 0.113 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.074 0.0144 0.0144 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
15.47 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
C 0.987 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT