1999 XT218
1999XT218, J99XL8T, V0431
All data for this body: [vot]
MPC data
| Name (number) |
1999 XT218 (310431) |
| a |
2.53126 |
| e |
0.24061 |
| i / sin(i) |
2.6307 /
0.04590
|
| q |
1.92222
|
| Q |
3.14031
|
| ω |
143.4954 |
| Node |
271.7485 |
| m |
137.7540 |
| n |
0.2447 |
| Epoch |
2460800.5 |
| nobs |
431 |
| nopp |
12 |
| Years observed |
1999-2025 |
| rms |
0.79 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.530 |
|
| ep |
0.211 |
|
| sin(ip) |
0.065 |
|
| G |
0.150 |
|
| H |
16.780 |
|
| 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 |
| 2.5300 |
0.2112 |
0.0645 |
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 |
| 16.78 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |