Obruchev

03128, 1942 RG1, 1942RG1, 1952 JE, 1952JE, 1976 YU4, 1976YU4, 1979 FJ2, 1979FJ2, 1979 HS2, 1979HS2, 1981 VG2, 1981VG2, J42R01G, J52J00E, J76Y04U, J79F02J, J79H02S, J81V02G

All data for this body: [vot]

MPC data
Name (number) Obruchev (3128)
a 3.11571
e 0.15809
i / sin(i) 2.9377 / 0.05125
q 2.62314
Q 3.60828
ω 188.0653
Node 102.3480
m 307.4485
n 0.1792
Epoch 2460200.5
nobs 3809
nopp 36
Years observed 1942-2023
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.116
ep 0.155
sin(ip) 0.029
Value Standard error
G 0.150
H 12.290
Mass
D 20.50 0.201
pV 0.071 0.0111
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 602 Themis -0.3100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1157 0.1549 0.0291 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
20.40 0.207 0.207 Masiero 2011ApJ...741...68M NEATM
22.25 0.880 0.880 Usui 2011PASJ...63.1117U NEATM
22.47 4.490 4.490 Ali-Lagoa 2018A&A...612A..85A NEATM
23.32 4.660 4.660 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.048 0.0190 0.0190 Ali-Lagoa 2018A&A...612A..85A NEATM
0.052 0.0210 0.0210 Ali-Lagoa 2018A&A...612A..85A NEATM
0.107 0.0180 0.0180 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
12.29 MPC-2023-12-04 MPC-2023-12-04 Phot