Segenthau

18567, 1997 SS4, 1997SS4, J97S04S

All data for this body: [vot]

MPC data
Name (number) Segenthau (18567)
a 2.77763
e 0.06743
i / sin(i) 3.3624 / 0.05865
q 2.59032
Q 2.96493
ω 76.7425
Node 241.7862
m 30.9529
n 0.2129
Epoch 2460800.5
nobs 1705
nopp 26
Years observed 1950-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent Hoffmeister (1726)
 
ap 2.778
ep 0.050
sin(ip) 0.076
G 0.150
H 14.680
Mass
D 9.05 2.131
pV 0.031 0.0180
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 2.466
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1726 Hoffmeister 0 Hoffmeister Novakovic 2019EPSC...13.1671N HCM
1726 Hoffmeister 519 Hoffmeister -0.6200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7783 0.0502 0.0757 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.64 2.910 2.910 Nugent 2016AJ....152...63N NEATM
9.53 3.130 3.130 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.030 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.031 0.0150 0.0300 Masiero 2021PSJ.....2..162M 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
14.68 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 0.411 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT