2004 SJ18

2004SJ18, K04S18J, W9836

All data for this body: [vot]

MPC data
Name (number) 2004 SJ18 (329836)
a 2.81061
e 0.17686
i / sin(i) 10.0179 / 0.17396
q 2.31354
Q 3.30768
ω 291.4008
Node 67.2686
m 136.3452
n 0.2092
Epoch 2460800.5
nobs 443
nopp 16
Years observed 2004-2025
rms 0.86
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.813
ep 0.133
sin(ip) 0.159
G 0.150
H 16.150
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.922
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion 0.2600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8127 0.1327 0.1593 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
16.15 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 0.987 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT