1999 JL87

1999JL87, 56260, J99J87L

All data for this body: [vot]

MPC data
Name (number) 1999 JL87 (56260)
a 2.69885
e 0.15074
i / sin(i) 14.2836 / 0.24672
q 2.29201
Q 3.10568
ω 49.7510
Node 74.9662
m 24.3986
n 0.2223
Epoch 2460800.5
nobs 2098
nopp 18
Years observed 1997-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.699
ep 0.177
sin(ip) 0.233
G 0.150
H 14.570
Mass
D 4.07 1.494
pV 0.223 0.0916
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 9.391
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6986 0.1767 0.2325 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.07 1.494 1.494 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.223 0.0916 0.0916 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
14.57 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.80 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9651 0.9651 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT