Alena

12061, 1961 TM, 1961TM, 1977 EX2, 1977EX2, 1998 FQ2, 1998FQ2, J61T00M, J77E02X, J98F02Q

All data for this body: [vot]

MPC data
Name (number) Alena (12061)
a 2.27746
e 0.19301
i / sin(i) 3.8803 / 0.06767
q 1.83789
Q 2.71702
ω 280.0563
Node 23.4018
m 226.3380
n 0.2868
Epoch 2460800.5
nobs 4182
nopp 24
Years observed 1961-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.278
ep 0.157
sin(ip) 0.064
G 0.150
H 14.290
Mass
D
pV
Value
Rotational Period 15.394
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2782 0.1573 0.0641 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
14.29 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
15.3944 2 Synodic Pal 2020ApJS..247...26P Lightcurve
5.0928 2 Sidereal Durech 2023A&A...675A..24D Model