1998 HS9
1998HS9, F7840, J98H09S
All data for this body: [vot]
MPC data
| Name (number) |
1998 HS9 (157840) |
| a |
2.69102 |
| e |
0.05141 |
| i / sin(i) |
15.6122 /
0.26913
|
| q |
2.55266
|
| Q |
2.82937
|
| ω |
215.4096 |
| Node |
84.2704 |
| m |
334.5454 |
| n |
0.2233 |
| Epoch |
2460800.5 |
| nobs |
708 |
| nopp |
19 |
| Years observed |
1998-2025 |
| rms |
0.92 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.690 |
|
| ep |
0.045 |
|
| sin(ip) |
0.252 |
|
| G |
0.150 |
|
| H |
15.550 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
2.668 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6904 |
0.0446 |
0.2521 |
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 |
| 15.55 |
|
|
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 |
| S |
S |
0.4447 |
0.4447 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |