1999 JL9

1999JL9, 35774, J99J09L

All data for this body: [vot]

MPC data
Name (number) 1999 JL9 (35774)
a 2.60063
e 0.11712
i / sin(i) 15.6163 / 0.26919
q 2.29603
Q 2.90522
ω 86.1966
Node 86.0720
m 112.6240
n 0.2350
Epoch 2460800.5
nobs 2538
nopp 21
Years observed 1997-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.601
ep 0.154
sin(ip) 0.258
G 0.150
H 14.150
Mass
D 5.22 0.403
pV 0.178 0.0417
Value
Rotational Period 7.800
Period quality 1
Spectral Class L
Spectral Class Score 28.960
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6010 0.1540 0.2582 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.22 0.403 0.403 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.178 0.0417 0.0417 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
14.15 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.86 1 Synodic Galad 2010A&A...514A..55G Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A L 0.3823 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D L 0.0121 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D L 0.2909 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D L 0.6986 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L 0.73 Bus VIS Carvano 2010A&A...510A..43C PHOT
L L 0.1588 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.1758 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.3795 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.4025 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.6050 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.6070 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.6591 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.7510 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.8447 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S L 0.1458 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S L 0.2952 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S L 0.3514 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S L 0.9223 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT