1989 SJ1

1989SJ1, 1981 SL8, 1981SL8, 1981 UG25, 1981UG25, 52281, J81S08L, J81U25G, J89S01J

All data for this body: [vot]

MPC data
Name (number) 1989 SJ1 (52281)
a 2.54345
e 0.22083
i / sin(i) 3.7153 / 0.06480
q 1.98178
Q 3.10513
ω 268.4755
Node 73.9143
m 299.1103
n 0.2430
Epoch 2460800.5
nobs 980
nopp 24
Years observed 1981-2025
rms 0.81
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.544
ep 0.168
sin(ip) 0.034
G 0.150
H 15.490
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 4.467
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5441 0.1680 0.0344 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.49 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
A S 0.2071 0.5050 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.22 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.6711 0.5050 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.1947 0.5050 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT