1999 JC31

1999JC31, 2000 QJ149, 2000QJ149, 59540, J99J31C, K00QE9J

All data for this body: [vot]

MPC data
Name (number) 1999 JC31 (59540)
a 2.44886
e 0.02195
i / sin(i) 1.6119 / 0.02813
q 2.39511
Q 2.50262
ω 213.7225
Node 8.4847
m 283.6134
n 0.2572
Epoch 2460800.5
nobs 1966
nopp 19
Years observed 1999-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.449
ep 0.050
sin(ip) 0.029
G 0.150
H 15.150
Mass
D 2.46 0.426
pV 0.352 0.1175
Value
Rotational Period
Period quality None
Spectral Class L
Spectral Class Score 7.438
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4491 0.0499 0.0291 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.46 0.426 0.426 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.352 0.1175 0.1175 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
15.15 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
L DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
L 0.06 Bus VIS Carvano 2010A&A...510A..43C PHOT
L L 0.8864 0.8864 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.916 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT