1998 HK8
1998HK8, 17828, 1997 EN40, 1997EN40, J97E40N, J98H08K
All data for this body: [vot]
MPC data
| Name (number) |
1998 HK8 (17828) |
| a |
2.96865 |
| e |
0.08621 |
| i / sin(i) |
0.6079 /
0.01061
|
| q |
2.71274
|
| Q |
3.22457
|
| ω |
2.8812 |
| Node |
3.1108 |
| m |
316.4236 |
| n |
0.1927 |
| Epoch |
2460800.5 |
| nobs |
2337 |
| nopp |
24 |
| Years observed |
1995-2025 |
| rms |
0.78 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.968 |
|
| ep |
0.054 |
|
| sin(ip) |
0.024 |
|
| G |
0.150 |
|
| H |
14.220 |
|
| Mass |
|
|
| D |
4.41 |
0.178 |
| pV |
0.109 |
0.0157 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
X |
| Spectral Class Score |
2.844 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.9677 |
0.0537 |
0.0238 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.41 |
0.178 |
0.178 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.109 |
0.0157 |
0.0157 |
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 |
| 14.22 |
|
|
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 |
| X |
|
0.474 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |