1989 BK

1989BK, 07569, 1951 WL, 1951WL, 1955 VY, 1955VY, 1993 BK, 1993BK, 2017 YY22, 2017YY22, J51W00L, J55V00Y, J89B00K, J93B00K, K17Y22Y

All data for this body: [vot]

MPC data
Name (number) 1989 BK (7569)
a 2.55231
e 0.29897
i / sin(i) 8.7669 / 0.15242
q 1.78924
Q 3.31538
ω 316.7051
Node 93.1117
m 7.6757
n 0.2417
Epoch 2460800.5
nobs 7460
nopp 26
Years observed 1951-2025
rms 0.49
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.554
ep 0.249
sin(ip) 0.131
G 0.150
H 13.310
Mass
D
pV
Value
Rotational Period 3.000
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5540 0.2495 0.1308 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
13.31 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.589 2- Synodic Simpson 2013MPBu...40..146S Lightcurve
3.6 2 Synodic Carbo 2009MPBu...36..152C Lightcurve