2009 SD221
2009SD221, K09SM1D, p5020
All data for this body: [vot]
MPC data
| Name (number) |
2009 SD221 (515020) |
| a |
3.10655 |
| e |
0.18912 |
| i / sin(i) |
5.4993 /
0.09584
|
| q |
2.51904
|
| Q |
3.69405
|
| ω |
26.4650 |
| Node |
243.1969 |
| m |
9.8965 |
| n |
0.1800 |
| Epoch |
2460800.5 |
| nobs |
208 |
| nopp |
11 |
| Years observed |
1998-2025 |
| rms |
0.89 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.112 |
|
| ep |
0.196 |
|
| sin(ip) |
0.109 |
|
| G |
0.150 |
|
| H |
16.710 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
C |
| Spectral Class Score |
0.126 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.1120 |
0.1964 |
0.1094 |
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 |
| 16.71 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| C |
C |
0.0210 |
0.0210 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |