1991 OK1

1991OK1, 07942, 1986 RO9, 1986RO9, 1989 AA7, 1989AA7, J86R09O, J89A07A, J91O01K

All data for this body: [vot]

MPC data
Name (number) 1991 OK1 (7942)
a 3.17234
e 0.04507
i / sin(i) 9.5455 / 0.16583
q 3.02938
Q 3.31531
ω 280.2585
Node 305.4138
m 65.9468
n 0.1744
Epoch 2460800.5
nobs 4465
nopp 26
Years observed 1986-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.173
ep 0.049
sin(ip) 0.186
G 0.150
H 11.990
Mass
D 11.86 0.311
pV 0.151 0.0307
Value
Rotational Period 7.574
Period quality 2
Spectral Class V
Spectral Class Score 11.674
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1732 0.0486 0.1860 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.86 0.311 0.311 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.151 0.0307 0.0307 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
11.99 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.57365 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
V 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V V 0.9456 0.9456 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT