2004 XH21

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

All data for this body: [vot]

MPC data
Name (number) 2004 XH21 (129107)
a 2.99134
e 0.16206
i / sin(i) 2.6407 / 0.04607
q 2.50657
Q 3.47612
ω 281.1595
Node 108.6829
m 255.9304
n 0.1905
Epoch 2460200.5
nobs 806
nopp 19
Years observed 1993-2023
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.991
ep 0.130
sin(ip) 0.027
Value Standard error
G 0.150
H 15.480
Mass
D 4.68 0.113
pV 0.074 0.0144
Rotational Period
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-Oct-2022
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
15.48 MPC-2023-12-04 MPC-2023-12-04 Phot