1997 WR31

1997WR31, 10904, 1980 FN4, 1980FN4, 1991 EF5, 1991EF5, 1998 DP32, 1998DP32, J80F04N, J91E05F, J97W31R, J98D32P

All data for this body: [vot]

MPC data
Name (number) 1997 WR31 (10904)
a 2.40390
e 0.15081
i / sin(i) 1.3241 / 0.02311
q 2.04136
Q 2.76644
ω 288.0004
Node 167.8709
m 101.5085
n 0.2644
Epoch 2460800.5
nobs 2678
nopp 22
Years observed 1980-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent Massalia (20)
 
ap 2.404
ep 0.165
sin(ip) 0.027
G 0.150
H 14.760
Mass
D 2.68 0.187
pV 0.405 0.0260
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 11.187
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
20 Massalia 0 Massalia Novakovic 2019EPSC...13.1671N HCM
20 Massalia 404 Massalia -0.2300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4041 0.1651 0.0267 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.56 0.235 0.235 Masiero 2011ApJ...741...68M NEATM
2.88 0.307 0.307 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.369 0.0326 0.0326 Masiero 2011ApJ...741...68M NEATM
0.468 0.0429 0.0429 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
14.76 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 Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
LS 0.40 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.637 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.0173 0.3780 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.8769 0.3780 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT