1999 JL98

1999JL98, 1992 DZ1, 1992DZ1, 1998 GD5, 1998GD5, 31756, J92D01Z, J98G05D, J99J98L

All data for this body: [vot]

MPC data
Name (number) 1999 JL98 (31756)
a 3.14695
e 0.22133
i / sin(i) 19.6942 / 0.33700
q 2.45044
Q 3.84346
ω 286.8207
Node 135.6114
m 44.0876
n 0.1766
Epoch 2460800.5
nobs 5058
nopp 24
Years observed 1992-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.158
ep 0.180
sin(ip) 0.332
G 0.150
H 12.830
Mass
D 14.89 0.144
pV 0.080 0.0076
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 18.530
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1575 0.1796 0.3316 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.45 0.411 0.411 Masiero 2011ApJ...741...68M NEATM
14.91 0.155 0.155 Masiero 2011ApJ...741...68M NEATM
14.91 4.110 4.110 Masiero 2021PSJ.....2..162M NEATM
15.52 3.100 3.100 Ali-Lagoa 2018A&A...612A..85A NEATM
16.72 1.090 1.090 Usui 2011PASJ...63.1117U NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.070 0.0280 0.0280 Ali-Lagoa 2018A&A...612A..85A NEATM
0.080 0.0091 0.0091 Masiero 2011ApJ...741...68M NEATM
0.083 0.0360 0.0640 Masiero 2021PSJ.....2..162M NEATM
0.085 0.0163 0.0163 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
12.83 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
D DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
D 0.91 Bus VIS Carvano 2010A&A...510A..43C PHOT
D D 0.0329 0.6540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.1641 0.6540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.3712 0.6540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.8973 0.6540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.9862 0.6540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Ds Ds None None Movis NIR Popescu 2018A&A...617A..12P PHOT
L 0.752 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
L D 0.3170 0.6540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT