2009 XD21
2009XD21, 2004 SJ60, 2004SJ60, b2721, K04S60J, K09X21D
All data for this body: [vot]
MPC data
| Name (number) |
2009 XD21 (372721) |
| a |
2.71351 |
| e |
0.26460 |
| i / sin(i) |
14.1776 /
0.24493
|
| q |
1.99550
|
| Q |
3.43151
|
| ω |
258.8370 |
| Node |
103.5027 |
| m |
208.7602 |
| n |
0.2205 |
| Epoch |
2460800.5 |
| nobs |
342 |
| nopp |
12 |
| Years observed |
2004-2025 |
| rms |
0.87 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.715 |
|
| ep |
0.211 |
|
| sin(ip) |
0.239 |
|
| G |
0.150 |
|
| H |
16.210 |
|
| 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 |
| 2.7147 |
0.2108 |
0.2386 |
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 |
| 16.21 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |