1999 HE1

1999HE1, J99H01E, N4061

All data for this body: [vot]

MPC data
Name (number) 1999 HE1 (234061)
a 2.36165
e 0.57221
i / sin(i) 8.1643 / 0.14201
q 1.01030
Q 3.71300
ω 221.9512
Node 65.7933
m 33.1731
n 0.2716
Epoch 2460800.5
nobs 433
nopp 8
Years observed 1999-2024
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 17.700
Mass
D 2.90 0.018
pV 0.019 0.0030
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 23.600
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.90 0.018 0.018 Mainzer 2011ApJ...743..156M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.019 0.0030 0.0030 Mainzer 2011ApJ...743..156M 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
17.70 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 B 0.800000 0.200000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
C P Bus-DeMeo NIR Binzel 2019Icar..324...41B SPEC