1999 JE12

1999JE12, 1987 SZ, 1987SZ, 56224, J87S00Z, J99J12E

All data for this body: [vot]

MPC data
Name (number) 1999 JE12 (56224)
a 2.58363
e 0.27539
i / sin(i) 29.3975 / 0.49087
q 1.87213
Q 3.29512
ω 97.7642
Node 190.0801
m 71.5791
n 0.2373
Epoch 2460800.5
nobs 2481
nopp 21
Years observed 1987-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.584
ep 0.176
sin(ip) 0.523
G 0.150
H 14.240
Mass
D 4.87 1.193
pV 0.187 0.0797
Value
Rotational Period 4.981
Period quality 2
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
945 Barcelona 0 Barcelona Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5839 0.1756 0.5235 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.87 1.193 1.193 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.187 0.0797 0.0797 Masiero 2011ApJ...741...68M 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
14.24 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.98077 2 Synodic Pal 2020ApJS..247...26P Lightcurve