2009 WC261
2009WC261, 1998 WG6, 1998WG6, e7254, J98W06G, K09WQ1C
All data for this body: [vot]
MPC data
| Name (number) |
2009 WC261 (407254) |
| a |
3.09866 |
| e |
0.28400 |
| i / sin(i) |
18.1598 /
0.31167
|
| q |
2.21863
|
| Q |
3.97869
|
| ω |
343.5648 |
| Node |
53.8141 |
| m |
312.9189 |
| n |
0.1807 |
| Epoch |
2460800.5 |
| nobs |
247 |
| nopp |
10 |
| Years observed |
1998-2025 |
| rms |
0.89 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.091 |
|
| ep |
0.284 |
|
| sin(ip) |
0.273 |
|
| G |
0.150 |
|
| H |
16.260 |
|
| Mass |
|
|
| D |
3.99 |
0.299 |
| pV |
0.053 |
0.0117 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
V |
| Spectral Class Score |
0.070 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.0914 |
0.2845 |
0.2728 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.99 |
0.299 |
0.299 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.053 |
0.0117 |
0.0117 |
Masiero |
2011ApJ...741...68M |
NEATM |
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 |
| 16.26 |
|
|
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 |
| V |
V |
0.0116 |
0.0116 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |