1999 XS21
1999XS21, 47322, J99X21S
All data for this body: [vot]
MPC data
| Name (number) |
1999 XS21 (47322) |
| a |
2.34583 |
| e |
0.09664 |
| i / sin(i) |
9.2438 /
0.16064
|
| q |
2.11912
|
| Q |
2.57254
|
| ω |
107.3540 |
| Node |
189.3301 |
| m |
150.1372 |
| n |
0.2743 |
| Epoch |
2460800.5 |
| nobs |
1839 |
| nopp |
20 |
| Years observed |
1995-2025 |
| rms |
0.77 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.345 |
|
| ep |
0.061 |
|
| sin(ip) |
0.167 |
|
| G |
0.150 |
|
| H |
15.440 |
|
| 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 |
| 2.3445 |
0.0606 |
0.1666 |
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 |
| 15.44 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |