1999 JD20

1999JD20, 11218, 1969 TU7, 1969TU7, 1988 JK1, 1988JK1, 1993 BD8, 1993BD8, 1994 LO4, 1994LO4, J69T07U, J88J01K, J93B08D, J94L04O, J99J20D

All data for this body: [vot]

MPC data
Name (number) 1999 JD20 (11218)
a 3.03095
e 0.13316
i / sin(i) 4.1563 / 0.07248
q 2.62735
Q 3.43455
ω 335.5577
Node 248.0483
m 324.6483
n 0.1868
Epoch 2460800.5
nobs 3838
nopp 28
Years observed 1969-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.030
ep 0.161
sin(ip) 0.092
G 0.150
H 13.270
Mass
D 12.57 0.152
pV 0.049 0.0040
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0302 0.1608 0.0924 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.03 4.080 4.080 Nugent 2016AJ....152...63N NEATM
12.24 3.050 3.050 Nugent 2016AJ....152...63N NEATM
12.58 0.152 0.152 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.049 0.0040 0.0040 Masiero 2011ApJ...741...68M NEATM
0.050 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.050 0.0700 0.0700 Nugent 2016AJ....152...63N 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
13.27 MPC-2023-12-04 MPC-2023-12-04 Phot