1999 GJ9

1999GJ9, 2000 UB58, 2000UB58, 96639, J99G09J, K00U58B

All data for this body: [vot]

MPC data
Name (number) 1999 GJ9 (96639)
a 2.40786
e 0.26104
i / sin(i) 4.8326 / 0.08425
q 1.77930
Q 3.03642
ω 331.9077
Node 282.2595
m 311.8621
n 0.2638
Epoch 2460800.5
nobs 1461
nopp 20
Years observed 1999-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.416
ep 0.275
sin(ip) 0.101
G 0.150
H 15.580
Mass
D 2.23 0.545
pV 0.271 0.1579
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 8.381
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4164 0.2747 0.1012 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.23 0.545 0.545 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.271 0.1579 0.1579 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
15.58 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
S 0.395 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.43 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8585 0.8585 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT