2002 XU21

2002XU21, H6951, K02X21U

All data for this body: [vot]

MPC data
Name (number) 2002 XU21 (176951)
a 2.79264
e 0.21828
i / sin(i) 9.0981 / 0.15812
q 2.18305
Q 3.40222
ω 342.7558
Node 72.2830
m 310.4028
n 0.2112
Epoch 2460800.5
nobs 497
nopp 18
Years observed 1997-2025
rms 0.84
Best values
[raw, vot]

Value Standard error
Parent Dora (668)
 
ap 2.792
ep 0.200
sin(ip) 0.134
G 0.150
H 15.810
Mass
D 5.18 1.261
pV 0.045 0.0118
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
668 Dora 512 Dora Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7919 0.2003 0.1339 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.16 1.679 1.679 Masiero 2017AJ....154..168M NEATM
5.19 1.911 1.911 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.045 0.0128 0.0128 Masiero 2011ApJ...741...68M NEATM
0.046 0.0310 0.0310 Masiero 2017AJ....154..168M 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
15.81 MPC-2023-12-04 MPC-2023-12-04 Phot