1999 CJ81

1999CJ81, 15490, 1985 VD2, 1985VD2, J85V02D, J99C81J

All data for this body: [vot]

MPC data
Name (number) 1999 CJ81 (15490)
a 2.58931
e 0.29100
i / sin(i) 4.5946 / 0.08011
q 1.83581
Q 3.34280
ω 194.3967
Node 221.3339
m 174.3827
n 0.2366
Epoch 2460800.5
nobs 2807
nopp 22
Years observed 1985-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.587
ep 0.251
sin(ip) 0.085
G 0.150
H 14.340
Mass
D 3.77 0.194
pV 0.267 0.0370
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 14.795
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5871 0.2509 0.0851 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.68 0.510 0.510 Nugent 2016AJ....152...63N NEATM
3.95 0.210 0.210 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.259 0.0380 0.0380 Masiero 2012ApJ...759L...8M NEATM
0.400 0.1600 0.1600 Nugent 2016AJ....152...63N 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
14.34 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
Q 0.113 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.77 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8806 0.9360 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9952 0.9360 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT