1999 AD20
1999AD20, 2001 YA47, 2001YA47, G2154, J99A20D, K01Y47A
All data for this body: [vot]
MPC data
| Name (number) |
1999 AD20 (162154) |
| a |
2.21878 |
| e |
0.10705 |
| i / sin(i) |
3.2241 /
0.05624
|
| q |
1.98126
|
| Q |
2.45630
|
| ω |
97.2578 |
| Node |
322.2311 |
| m |
47.6026 |
| n |
0.2982 |
| Epoch |
2460800.5 |
| nobs |
428 |
| nopp |
14 |
| Years observed |
1999-2025 |
| rms |
0.84 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.219 |
|
| ep |
0.116 |
|
| sin(ip) |
0.058 |
|
| G |
0.150 |
|
| H |
17.530 |
|
| 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 |
| 2.2186 |
0.1156 |
0.0577 |
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 |
| 17.53 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |