1999 GQ4

1999GQ4, 2000 LY18, 2000LY18, 25324, J99G04Q, K00L18Y

All data for this body: [vot]

MPC data
Name (number) 1999 GQ4 (25324)
a 3.12164
e 0.00368
i / sin(i) 10.7313 / 0.18620
q 3.11016
Q 3.13311
ω 123.6693
Node 174.9873
m 174.0703
n 0.1787
Epoch 2460800.5
nobs 4253
nopp 26
Years observed 1955-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.118
ep 0.038
sin(ip) 0.183
G 0.150
H 12.800
Mass
D 8.49 0.145
pV 0.255 0.0130
Value
Rotational Period 5.809
Period quality 2
Spectral Class L
Spectral Class Score 7.899
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1184 0.0379 0.1834 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.27 0.179 0.179 Masiero 2011ApJ...741...68M NEATM
8.91 0.247 0.247 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.223 0.0456 0.0456 Masiero 2011ApJ...741...68M NEATM
0.258 0.0136 0.0136 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
12.80 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.80938 2 Sidereal Durech 2023A&A...675A..24D Model
5.80959 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D L 0.9156 0.5820 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L 0.74 Bus VIS Carvano 2010A&A...510A..43C PHOT
L L 0.1205 0.5820 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.9493 0.5820 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT