1999 HM8

1999HM8, 1982 JQ4, 1982JQ4, 1982 KV3, 1982KV3, 29902, J82J04Q, J82K03V, J99H08M

All data for this body: [vot]

MPC data
Name (number) 1999 HM8 (29902)
a 2.65598
e 0.15462
i / sin(i) 11.6041 / 0.20115
q 2.24533
Q 3.06664
ω 345.0093
Node 199.2653
m 13.0686
n 0.2277
Epoch 2460800.5
nobs 3889
nopp 22
Years observed 1982-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.656
ep 0.199
sin(ip) 0.202
G 0.150
H 13.730
Mass
D 9.74 0.676
pV 0.065 0.0179
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 12.140
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6565 0.1988 0.2021 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.24 2.050 2.050 Ali-Lagoa 2018A&A...612A..85A NEATM
8.64 1.998 1.998 Masiero 2017AJ....154..168M NEATM
9.52 2.160 2.160 Masiero 2021PSJ.....2..162M NEATM
9.88 0.820 0.820 Usui 2011PASJ...63.1117U NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.058 0.0351 0.0351 Masiero 2017AJ....154..168M NEATM
0.067 0.0250 0.0400 Masiero 2021PSJ.....2..162M NEATM
0.068 0.0270 0.0270 Ali-Lagoa 2018A&A...612A..85A 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
13.73 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 0.97 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.3508 0.3610 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.3672 0.3610 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6487 0.3610 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.2216 0.3610 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.0489 0.3610 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.4028 0.3610 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT