2004 SM18

2004SM18, 2002 JZ142, 2002JZ142, B7239, K02JE2Z, K04S18M

All data for this body: [vot]

MPC data
Name (number) 2004 SM18 (117239)
a 3.20208
e 0.11113
i / sin(i) 3.8894 / 0.06783
q 2.84624
Q 3.55791
ω 323.5947
Node 236.0238
m 34.8821
n 0.1720
Epoch 2460800.5
nobs 872
nopp 22
Years observed 1993-2025
rms 0.86
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.208
ep 0.132
sin(ip) 0.085
G 0.150
H 14.920
Mass
D 6.04 1.410
pV 0.048 0.0340
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 4.190
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2079 0.1317 0.0850 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.04 1.410 1.410 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.048 0.0340 0.0340 Masiero 2012ApJ...759L...8M 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
14.92 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
B C 0.0147 0.4330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.0900 0.4330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.60 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.4983 0.4330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT