1998 HB21
1998HB21, 35576, J98H21B
All data for this body: [vot]
MPC data
| Name (number) |
1998 HB21 (35576) |
| a |
2.71365 |
| e |
0.03588 |
| i / sin(i) |
3.2736 /
0.05710
|
| q |
2.61630
|
| Q |
2.81101
|
| ω |
166.4524 |
| Node |
128.0441 |
| m |
280.6704 |
| n |
0.2205 |
| Epoch |
2460800.5 |
| nobs |
1489 |
| nopp |
23 |
| Years observed |
1995-2025 |
| rms |
0.83 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.714 |
|
| ep |
0.043 |
|
| sin(ip) |
0.043 |
|
| G |
0.150 |
|
| H |
15.330 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
5.988 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7141 |
0.0431 |
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 |
| 15.33 |
|
|
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 |
|
0.998 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |