1999 HS8

1999HS8, 2001 WA20, 2001WA20, A1801, J99H08S, K01W20A

All data for this body: [vot]

MPC data
Name (number) 1999 HS8 (101801)
a 2.63613
e 0.12588
i / sin(i) 1.4650 / 0.02557
q 2.30429
Q 2.96797
ω 274.2748
Node 250.2861
m 60.5162
n 0.2303
Epoch 2460800.5
nobs 1036
nopp 18
Years observed 1992-2025
rms 0.85
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.636
ep 0.167
sin(ip) 0.044
G 0.150
H 15.780
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 10.637
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6362 0.1670 0.0443 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
15.78 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
D S 0.0341 0.3560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D S 0.1581 0.3560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.520 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.1907 0.3560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.4661 0.3560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.5961 0.3560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT