2008 HP21
2008HP21, K08H21P, W0959
All data for this body: [vot]
MPC data
| Name (number) |
2008 HP21 (320959) |
| a |
2.80266 |
| e |
0.11768 |
| i / sin(i) |
4.0224 /
0.07015
|
| q |
2.47285
|
| Q |
3.13247
|
| ω |
16.1799 |
| Node |
139.2407 |
| m |
272.8135 |
| n |
0.2101 |
| Epoch |
2460800.5 |
| nobs |
282 |
| nopp |
13 |
| Years observed |
2003-2024 |
| rms |
0.84 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.802 |
|
| ep |
0.154 |
|
| sin(ip) |
0.056 |
|
| G |
0.150 |
|
| H |
17.000 |
|
| 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 |
| 2.8017 |
0.1541 |
0.0564 |
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 |
| 17.00 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |