2001 HJ18

2001HJ18, 2000 CE9, 2000CE9, F9532, K00C09E, K01H18J

All data for this body: [vot]

MPC data
Name (number) 2001 HJ18 (159532)
a 3.10952
e 0.24263
i / sin(i) 26.2423 / 0.44217
q 2.35506
Q 3.86398
ω 99.5510
Node 124.8970
m 141.1444
n 0.1797
Epoch 2460800.5
nobs 598
nopp 17
Years observed 2000-2025
rms 0.84
Best values
[raw, vot]

Value Standard error
Parent Euphrosyne (31)
 
ap 3.115
ep 0.197
sin(ip) 0.451
G 0.150
H 15.110
Mass
D 7.48 1.598
pV 0.046 0.0272
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 4.758
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
31 Euphrosyne 0 Euphrosyne Novakovic 2019EPSC...13.1671N HCM
31 Euphrosyne 901 Euphrosyne Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1149 0.1969 0.4506 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.48 1.598 1.598 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.046 0.0272 0.0272 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
15.11 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 0.793 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT