1990 OB2

1990OB2, 1964 TJ, 1964TJ, 1985 TT3, 1985TT3, 1985 VY1, 1985VY1, 27722, J64T00J, J85T03T, J85V01Y, J90O02B

All data for this body: [vot]

MPC data
Name (number) 1990 OB2 (27722)
a 3.01451
e 0.34697
i / sin(i) 11.7709 / 0.20400
q 1.96855
Q 4.06047
ω 359.8546
Node 349.1938
m 204.5919
n 0.1883
Epoch 2460800.5
nobs 1909
nopp 25
Years observed 1964-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 13.570
Mass
D 7.61 0.388
pV 0.142 0.0248
Value
Rotational Period 14.800
Period quality 2
Spectral Class None
Spectral Class Score
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.15 0.510 0.510 Masiero 2011ApJ...741...68M NEATM
7.56 2.133 2.133 Masiero 2011ApJ...741...68M NEATM
8.28 0.670 0.670 Usui 2011PASJ...63.1117U NEATM
8.60 1.720 1.720 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.099 0.0400 0.0400 Ali-Lagoa 2018A&A...612A..85A NEATM
0.162 0.0382 0.0382 Masiero 2011ApJ...741...68M NEATM
0.181 0.0559 0.0559 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
13.57 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.29 2 Synodic Chang 2015ApJS..219...27C Lightcurve
14.85 2 Synodic Stephens 2016MPBu...43...10S Lightcurve