1999 JA12

1999JA12, 18764, J99J12A

All data for this body: [vot]

MPC data
Name (number) 1999 JA12 (18764)
a 2.33158
e 0.18069
i / sin(i) 24.8148 / 0.41969
q 1.91028
Q 2.75287
ω 154.9034
Node 105.6978
m 81.6154
n 0.2768
Epoch 2460800.5
nobs 4322
nopp 23
Years observed 1992-2025
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent Phocaea (25)
 
ap 2.332
ep 0.238
sin(ip) 0.393
G 0.150
H 14.110
Mass
D 3.95 0.047
pV 0.495 0.0926
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
25 Phocaea 0 Phocaea Novakovic 2019EPSC...13.1671N HCM
25 Phocaea 701 Phocaea -0.5900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3324 0.2380 0.3927 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.95 0.047 0.047 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.495 0.0926 0.0926 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
14.11 MPC-2023-12-04 MPC-2023-12-04 Phot