1989GM2

18339, 1998KN15, J89G02M, J98K15N

All data for this body: [vot]

MPC data
Name (number) 1989GM2 (18339)
Packed designation 18339
a 2.70475
e 0.16591
i / sin(i) 6.0772 / 0.10587
q 2.25602
Q 3.15349
ω 297.9378
Node 216.4764
m 175.8050
n 0.2216
Epoch 2459600.5
nobs 1829
nopp 22
Years observed 1989-2021
rms 0.48
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.700
ep 0.203
sin(ip) 0.121
Value Standard error
G 0.150
H 14.180
Mass
D 6.95 0.149
pV 0.064 0.0039
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-Jan-2022
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-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.18 MPC-2022-01-18 MPC-2022-01-18 Phot