2001 KW21
2001KW21, 2003 YQ161, 2003YQ161, H1843, K01K21W, K03YG1Q
All data for this body: [vot]
MPC data
| Name (number) |
2001 KW21 (171843) |
| a |
2.56866 |
| e |
0.07798 |
| i / sin(i) |
12.2513 /
0.21220
|
| q |
2.36836
|
| Q |
2.76896
|
| ω |
145.2333 |
| Node |
57.4711 |
| m |
322.6939 |
| n |
0.2394 |
| Epoch |
2460800.5 |
| nobs |
910 |
| nopp |
18 |
| Years observed |
2001-2025 |
| rms |
0.90 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.570 |
|
| ep |
0.118 |
|
| sin(ip) |
0.198 |
|
| G |
0.150 |
|
| H |
15.990 |
|
| Mass |
|
|
| D |
4.76 |
0.127 |
| pV |
0.049 |
0.0073 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5698 |
0.1179 |
0.1982 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.76 |
0.127 |
0.127 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.049 |
0.0073 |
0.0073 |
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 |
| 15.99 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |