Tweedledee

09387, 1986 EM, 1986EM, 1987 QQ1, 1987QQ1, 1994 CA, 1994CA, J86E00M, J87Q01Q, J94C00A

All data for this body: [vot]

MPC data
Name (number) Tweedledee (9387)
a 1.93894
e 0.08902
i / sin(i) 21.6557 / 0.36903
q 1.76634
Q 2.11154
ω 56.3340
Node 332.9337
m 300.3279
n 0.3651
Epoch 2460800.5
nobs 3882
nopp 21
Years observed 1986-2025
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent
 
ap 1.939
ep 0.065
sin(ip) 0.404
G 0.150
H 13.980
Mass
D 4.67 0.048
pV 0.206 0.0254
Value
Rotational Period 3.530
Period quality 3
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
1.9389 0.0649 0.4039 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.56 0.140 0.140 Masiero 2014ApJ...791..121M NEATM
4.68 0.051 0.051 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.203 0.0280 0.0280 Masiero 2011ApJ...741...68M NEATM
0.220 0.0600 0.0600 Masiero 2014ApJ...791..121M 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
13.98 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.531 3- Synodic Warner 2015MPBu...42..108W Lightcurve
3.534 3 Synodic Stephens 2015MPBu...42...70S Lightcurve
3.535 2+ Synodic Warner 2013MPBu...40..137W Lightcurve
3.5381 2 Synodic Behrend LCDB Lightcurve
3.543 2+ Synodic Warner 2013MPBu...40..137W Lightcurve
7.08 2 Synodic Warner 2007MPBu...34....8W Lightcurve