Selg

18565, 1993 PG9, 1993PG9, 1994 UD13, 1994UD13, 1996 AJ20, 1996AJ20, 1997 GP35, 1997GP35, J93P09G, J94U13D, J96A20J, J97G35P

All data for this body: [vot]

MPC data
Name (number) Selg (18565)
a 3.09882
e 0.12315
i / sin(i) 5.0074 / 0.08729
q 2.71719
Q 3.48045
ω 290.3492
Node 201.6996
m 122.1906
n 0.1807
Epoch 2460800.5
nobs 1831
nopp 23
Years observed 1993-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.096
ep 0.146
sin(ip) 0.097
G 0.150
H 14.190
Mass
D 8.63 0.215
pV 0.054 0.0152
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 3.798
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0961 0.1457 0.0972 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.63 0.215 0.215 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.054 0.0152 0.0152 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
14.19 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 0.633 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.41 Bus VIS Carvano 2010A&A...510A..43C PHOT