1991 HK

1991HK, 12717, 1998 QJ7, 1998QJ7, J91H00K, J98Q07J

All data for this body: [vot]

MPC data
Name (number) 1991 HK (12717)
a 2.21533
e 0.16515
i / sin(i) 5.2306 / 0.09116
q 1.84947
Q 2.58118
ω 54.9798
Node 167.9422
m 108.5963
n 0.2989
Epoch 2460800.5
nobs 2319
nopp 22
Years observed 1991-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.228
ep 0.200
sin(ip) 0.092
G 0.150
H 15.190
Mass
D 2.78 0.285
pV 0.275 0.1236
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 9.908
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2285 0.1996 0.0921 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.78 0.285 0.285 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.275 0.1236 0.1236 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
15.19 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.132 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.58 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9926 0.9870 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT