1981 QJ3

1981QJ3, 13485, 1992 SO3, 1992SO3, J81Q03J, J92S03O

All data for this body: [vot]

MPC data
Name (number) 1981 QJ3 (13485)
a 3.12525
e 0.17759
i / sin(i) 2.6297 / 0.04588
q 2.57023
Q 3.68027
ω 199.5202
Node 139.6741
m 339.5053
n 0.1784
Epoch 2460800.5
nobs 2990
nopp 26
Years observed 1981-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.122
ep 0.153
sin(ip) 0.032
G 0.150
H 13.520
Mass
D 10.97 0.260
pV 0.077 0.0069
Value
Rotational Period 173.000
Period quality 2
Spectral Class B
Spectral Class Score 4.260
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis -0.1100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1221 0.1535 0.0318 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.96 0.261 0.261 Masiero 2011ApJ...741...68M NEATM
11.83 3.690 3.690 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.056 0.0280 0.0540 Masiero 2021PSJ.....2..162M NEATM
0.077 0.0070 0.0070 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
13.52 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
173.0 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.710 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C 0.19 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.3866 0.3866 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT