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
|
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
| 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
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.15 |
|
|
MPC-2023-12-94 |
MPC-2023-12-94 |
Phot |
H data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 15.62 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |