1997 HP8

1997HP8, 13210, 1998 OS3, 1998OS3, J97H08P, J98O03S

All data for this body: [vot]

MPC data
Name (number) 1997 HP8 (13210)
a 2.65988
e 0.09518
i / sin(i) 3.7172 / 0.06483
q 2.40671
Q 2.91305
ω 219.6862
Node 187.4604
m 334.3077
n 0.2272
Epoch 2460800.5
nobs 1890
nopp 23
Years observed 1992-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.661
ep 0.070
sin(ip) 0.070
G 0.150
H 14.980
Mass
D 4.46 0.376
pV 0.121 0.0203
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.046
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6608 0.0703 0.0702 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.83 1.152 1.152 Masiero 2011ApJ...741...68M NEATM
4.54 0.398 0.398 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.113 0.0224 0.0224 Masiero 2011ApJ...741...68M NEATM
0.159 0.0475 0.0475 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
14.98 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 0.841 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT