1999 JS54
1999JS54, 17978, 1997 WU19, 1997WU19, J97W19U, J99J54S
All data for this body: [vot]
MPC data
| Name (number) |
1999 JS54 (17978) |
| a |
2.27464 |
| e |
0.16129 |
| i / sin(i) |
4.1731 /
0.07277
|
| q |
1.90776
|
| Q |
2.64152
|
| ω |
226.8382 |
| Node |
293.6877 |
| m |
265.2376 |
| n |
0.2873 |
| Epoch |
2460800.5 |
| nobs |
2655 |
| nopp |
21 |
| Years observed |
1995-2025 |
| rms |
0.70 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.275 |
|
| ep |
0.208 |
|
| sin(ip) |
0.084 |
|
| G |
0.150 |
|
| H |
14.910 |
|
| 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 |
| 2.2750 |
0.2084 |
0.0842 |
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 |
| 14.91 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |