2001 HE18

2001HE18, d9362, K01H18E

All data for this body: [vot]

MPC data
Name (number) 2001 HE18 (399362)
a 2.62335
e 0.18407
i / sin(i) 29.0762 / 0.48597
q 2.14047
Q 3.10622
ω 114.8740
Node 100.2277
m 237.7000
n 0.2320
Epoch 2460800.5
nobs 447
nopp 13
Years observed 2001-2025
rms 0.90
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.621
ep 0.212
sin(ip) 0.480
G 0.150
H 16.050
Mass
D 3.46 0.173
pV 0.101 0.0225
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 3.432
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6214 0.2124 0.4801 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.45 0.175 0.175 Masiero 2011ApJ...741...68M NEATM
3.97 1.070 1.070 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.049 0.0530 0.0530 Masiero 2020PSJ.....1....5M NEATM
0.113 0.0248 0.0248 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
16.05 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
S 0.572 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT