1989 GM2

1989GM2, 18339, 1998 KN15, 1998KN15, J89G02M, J98K15N

All data for this body: [vot]

MPC data
Name (number) 1989 GM2 (18339)
a 2.70125
e 0.16571
i / sin(i) 6.1043 / 0.10634
q 2.25363
Q 3.14886
ω 299.3297
Node 216.2763
m 80.6612
n 0.2220
Epoch 2460800.5
nobs 2867
nopp 25
Years observed 1989-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.700
ep 0.203
sin(ip) 0.121
G 0.150
H 14.200
Mass
D 6.95 0.149
pV 0.064 0.0039
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 6.185
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7001 0.2033 0.1215 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.94 0.150 0.150 Masiero 2011ApJ...741...68M NEATM
7.28 2.050 2.050 Nugent 2016AJ....152...63N NEATM
7.43 2.130 2.130 Masiero 2021PSJ.....2..162M NEATM
9.21 4.680 4.680 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.052 0.0530 0.0530 Masiero 2012ApJ...759L...8M NEATM
0.064 0.0039 0.0039 Masiero 2011ApJ...741...68M NEATM
0.067 0.0270 0.0440 Masiero 2021PSJ.....2..162M NEATM
0.070 0.0500 0.0500 Nugent 2016AJ....152...63N 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
14.20 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
B X 0.1831 0.3580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C X 0.3666 0.3580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D X 0.0307 0.3580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.50 Bus VIS Carvano 2010A&A...510A..43C PHOT
X X 0.2070 0.3580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.6572 0.3580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT