1991 HK

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

All data for this body: [vot]

MPC data
Name (number) 1991 HK (12717)
a 2.21530
e 0.16502
i / sin(i) 5.2305 / 0.09116
q 1.84972
Q 2.58088
ω 55.1010
Node 167.9494
m 289.1601
n 0.2989
Epoch 2460200.5
nobs 1871
nopp 20
Years observed 1991-2023
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.228
ep 0.200
sin(ip) 0.092
Value Standard error
G 0.150
H 15.260
Mass
D 2.78 0.285
pV 0.275 0.1236
Rotational Period
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-Oct-2022
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
15.26 MPC-2023-12-04 MPC-2023-12-04 Phot