Spassky

11268, 1981 UB11, 1981UB11, 1985 UF5, 1985UF5, 1989 YU, 1989YU, J81U11B, J85U05F, J89Y00U

All data for this body: [vot]

MPC data
Name (number) Spassky (11268)
a 2.41632
e 0.20084
i / sin(i) 4.1212 / 0.07187
q 1.93104
Q 2.90161
ω 224.8325
Node 205.1070
m 170.6123
n 0.2624
Epoch 2460800.5
nobs 3508
nopp 24
Years observed 1981-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.418
ep 0.196
sin(ip) 0.081
G 0.150
H 13.830
Mass
D
pV
Value
Rotational Period 5.640
Period quality 3
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4177 0.1962 0.0813 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
13.83 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.645 3- Synodic Hayes 2016MPBu...43..141H Lightcurve
5.6451 2 Sidereal Durech 2023A&A...675A..24D Model
5.646 3 Synodic Casalnuovo 2016MPBu...43..112C Lightcurve