1998 SM61

1998SM61, 2000 BQ31, 2000BQ31, 52891, J98S61M, K00B31Q

All data for this body: [vot]

MPC data
Name (number) 1998 SM61 (52891)
a 2.35409
e 0.22738
i / sin(i) 4.4213 / 0.07709
q 1.81882
Q 2.88937
ω 331.6411
Node 329.4208
m 178.5257
n 0.2729
Epoch 2460800.5
nobs 1439
nopp 21
Years observed 1993-2025
rms 0.82
Best values
[raw, vot]

Value Standard error
Parent Erigone (163)
 
ap 2.353
ep 0.201
sin(ip) 0.084
G 0.150
H 15.690
Mass
D 4.20 0.342
pV 0.057 0.0088
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 4.750
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
163 Erigone 406 Erigone -0.6000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3534 0.2012 0.0844 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.87 0.672 0.672 Masiero 2017AJ....154..168M NEATM
4.67 0.397 0.397 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.056 0.0089 0.0089 Masiero 2011ApJ...741...68M NEATM
0.136 0.0652 0.0652 Masiero 2017AJ....154..168M 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
15.69 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 0.950000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC