1981 QA1

1981QA1, 07325, 1976 GY2, 1976GY2, 1985 VR3, 1985VR3, 1990 BJ1, 1990BJ1, 1992 PL3, 1992PL3, J76G02Y, J81Q01A, J85V03R, J90B01J, J92P03L

All data for this body: [vot]

MPC data
Name (number) 1981 QA1 (7325)
a 2.39695
e 0.11872
i / sin(i) 7.9281 / 0.13793
q 2.11238
Q 2.68152
ω 240.7165
Node 176.6896
m 216.5434
n 0.2656
Epoch 2460800.5
nobs 4133
nopp 28
Years observed 1976-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.398
ep 0.116
sin(ip) 0.140
G 0.150
H 13.630
Mass
D 6.44 0.276
pV 0.142 0.0286
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 2.250
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3977 0.1160 0.1403 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.88 1.340 1.340 Nugent 2016AJ....152...63N NEATM
6.51 0.282 0.282 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.138 0.0294 0.0294 Masiero 2011ApJ...741...68M NEATM
0.210 0.1200 0.1200 Nugent 2016AJ....152...63N 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
13.63 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.375 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT