1999 NM18

1999NM18, 1981 UL9, 1981UL9, 40357, J81U09L, J99N18M

All data for this body: [vot]

MPC data
Name (number) 1999 NM18 (40357)
a 2.38845
e 0.25342
i / sin(i) 3.5271 / 0.06152
q 1.78316
Q 2.99374
ω 338.6482
Node 25.5958
m 311.0867
n 0.2670
Epoch 2460800.5
nobs 1219
nopp 22
Years observed 1981-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.388
ep 0.216
sin(ip) 0.052
G 0.150
H 15.620
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3882 0.2162 0.0520 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.62 MPC-2023-12-04 MPC-2023-12-04 Phot