1998 WR9

1998WR9, 1993 SO12, 1993SO12, 25287, J93S12O, J98W09R

All data for this body: [vot]

MPC data
Name (number) 1998 WR9 (25287)
a 2.74380
e 0.10525
i / sin(i) 1.3675 / 0.02387
q 2.45502
Q 3.03258
ω 109.3801
Node 217.1432
m 12.3900
n 0.2169
Epoch 2460800.5
nobs 2243
nopp 22
Years observed 1993-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.744
ep 0.080
sin(ip) 0.038
G 0.150
H 14.500
Mass
D 7.19 0.043
pV 0.055 0.0060
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 0.985
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7441 0.0797 0.0380 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.97 0.171 0.171 Masiero 2011ApJ...741...68M NEATM
7.20 0.044 0.044 Masiero 2011ApJ...741...68M NEATM
7.54 1.960 1.960 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.054 0.0072 0.0072 Masiero 2011ApJ...741...68M NEATM
0.054 0.0250 0.0450 Masiero 2021PSJ.....2..162M NEATM
0.058 0.0114 0.0114 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
14.50 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
C C 0.1642 0.1642 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.19 Bus VIS Carvano 2010A&A...510A..43C PHOT