2008 HJ18
2008HJ18, 1997 KT2, 1997KT2, J97K02T, K08H18J, M1879
All data for this body: [vot]
MPC data
| Name (number) |
2008 HJ18 (221879) |
| a |
3.16430 |
| e |
0.20856 |
| i / sin(i) |
15.8889 /
0.27377
|
| q |
2.50435
|
| Q |
3.82425
|
| ω |
118.1369 |
| Node |
189.4027 |
| m |
308.7131 |
| n |
0.1751 |
| Epoch |
2460800.5 |
| nobs |
500 |
| nopp |
14 |
| Years observed |
1997-2025 |
| rms |
0.84 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.174 |
|
| ep |
0.170 |
|
| sin(ip) |
0.284 |
|
| G |
0.150 |
|
| H |
15.920 |
|
| 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 |
| 3.1737 |
0.1695 |
0.2837 |
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 |
| 15.92 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |