1999 JJ74

1999JJ74, 1997 WE43, 1997WE43, 40297, J97W43E, J99J74J

All data for this body: [vot]

MPC data
Name (number) 1999 JJ74 (40297)
a 2.17178
e 0.05535
i / sin(i) 6.1711 / 0.10750
q 2.05158
Q 2.29198
ω 273.7390
Node 93.4216
m 263.1122
n 0.3080
Epoch 2460800.5
nobs 1720
nopp 21
Years observed 1994-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.172
ep 0.069
sin(ip) 0.110
G 0.150
H 15.800
Mass
D 3.40 0.563
pV 0.086 0.0296
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1716 0.0691 0.1098 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.20 0.930 0.930 Masiero 2021PSJ.....2..162M NEATM
3.39 0.800 0.800 Masiero 2020PSJ.....1....5M NEATM
3.95 1.520 1.520 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.078 0.0540 0.0540 Masiero 2012ApJ...759L...8M NEATM
0.088 0.0470 0.0470 Masiero 2020PSJ.....1....5M NEATM
0.090 0.0390 0.0680 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
15.80 MPC-2023-12-04 MPC-2023-12-04 Phot