2001SG21

K01S21G, O3999

All data for this body: [vot]

MPC data
Name (number) 2001SG21 (243999)
Packed designation O3999
a 2.71802
e 0.19207
i / sin(i) 3.7855 / 0.06602
q 2.19598
Q 3.24006
ω 302.5715
Node 80.9307
m 185.3485
n 0.2200
Epoch 2459600.5
nobs 530
nopp 13
Years observed 1995-2021
rms 0.50
Best values
[raw, vot]

Value Standard error
Parent Xizang (2344)
 
ap 2.718
ep 0.154
sin(ip) 0.047
Value Standard error
G 0.150
H 16.240
Mass
D 1.87 0.341
pV 0.183 0.0576
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
2344 Xizang 536 Xizang -0.7900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7180 0.1543 0.0471 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.87 0.341 0.341 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.183 0.0576 0.0576 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.24 MPC-2022-01-18 MPC-2022-01-18 Phot