1998 TH21
1998TH21, 2007 VA61, 2007VA61, J98T21H, K07V61A, T7308
All data for this body: [vot]
MPC data
| Name (number) |
1998 TH21 (297308) |
| a |
2.68540 |
| e |
0.13715 |
| i / sin(i) |
3.7770 /
0.06587
|
| q |
2.31710
|
| Q |
3.05370
|
| ω |
359.9827 |
| Node |
20.2922 |
| m |
18.7868 |
| n |
0.2240 |
| Epoch |
2460800.5 |
| nobs |
292 |
| nopp |
14 |
| Years observed |
1998-2024 |
| rms |
0.87 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.686 |
|
| ep |
0.098 |
|
| sin(ip) |
0.062 |
|
| G |
0.150 |
|
| H |
17.150 |
|
| 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 |
| 2.6858 |
0.0981 |
0.0621 |
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 |
| 17.15 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |