1990 QA2

1990QA2, 07937, 1976 JR6, 1976JR6, 1981 NE1, 1981NE1, J76J06R, J81N01E, J90Q02A

All data for this body: [vot]

MPC data
Name (number) 1990 QA2 (7937)
a 2.63042
e 0.06288
i / sin(i) 1.5888 / 0.02773
q 2.46502
Q 2.79583
ω 115.8953
Node 319.6348
m 322.3661
n 0.2310
Epoch 2460800.5
nobs 4050
nopp 30
Years observed 1976-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.631
ep 0.063
sin(ip) 0.045
G 0.150
H 13.480
Mass
D 5.83 0.130
pV 0.174 0.0090
Value
Rotational Period 6.200
Period quality 3
Spectral Class S
Spectral Class Score 11.349
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6314 0.0631 0.0447 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.75 0.170 0.170 Masiero 2011ApJ...741...68M NEATM
5.95 0.200 0.200 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.165 0.0160 0.0160 Masiero 2011ApJ...741...68M NEATM
0.177 0.0108 0.0108 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
13.48 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.23 3 Synodic Chang 2019ApJS..241....6C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.76 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.803 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.8352 0.8352 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT