1981 EL23

1981EL23, 1999 TR215, 1999TR215, 99984, J81E23L, J99TL5R

All data for this body: [vot]

MPC data
Name (number) 1981 EL23 (99984)
a 2.51811
e 0.12383
i / sin(i) 3.4380 / 0.05997
q 2.20628
Q 2.82993
ω 278.4850
Node 159.4468
m 313.4746
n 0.2467
Epoch 2460200.5
nobs 1315
nopp 17
Years observed 1981-2023
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.513
ep 0.130
sin(ip) 0.056
Value Standard error
G 0.150
H 15.630
Mass
D 5.09 0.252
pV 0.048 0.0096
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5129 0.1300 0.0562 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.95 1.400 1.400 Masiero 2021PSJ.....2..162M NEATM
5.12 0.256 0.256 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.047 0.0098 0.0098 Masiero 2011ApJ...741...68M NEATM
0.070 0.0320 0.0590 Masiero 2021PSJ.....2..162M 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
15.63 MPC-2023-12-04 MPC-2023-12-04 Phot