2009 HR4
2009HR4, 2006 QX74, 2006QX74, K06Q74X, K09H04R, Z9276
All data for this body: [vot]
MPC data
| Name (number) |
2009 HR4 (359276) |
| a |
2.60739 |
| e |
0.03686 |
| i / sin(i) |
3.1777 /
0.05543
|
| q |
2.51128
|
| Q |
2.70351
|
| ω |
174.6389 |
| Node |
121.4275 |
| m |
197.5339 |
| n |
0.2341 |
| Epoch |
2460800.5 |
| nobs |
220 |
| nopp |
15 |
| Years observed |
2001-2025 |
| rms |
0.94 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.608 |
|
| ep |
0.062 |
|
| sin(ip) |
0.043 |
|
| G |
0.150 |
|
| H |
17.360 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
0.936 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6077 |
0.0623 |
0.0430 |
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 |
| 17.36 |
|
|
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 |
0.1560 |
0.1560 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |