1997 WH20
1997WH20, 1999 CD114, 1999CD114, A0658, J97W20H, J99CB4D
All data for this body: [vot]
MPC data
| Name (number) |
1997 WH20 (100658) |
| a |
2.78809 |
| e |
0.15254 |
| i / sin(i) |
3.4971 /
0.06100
|
| q |
2.36280
|
| Q |
3.21338
|
| ω |
354.9986 |
| Node |
204.9134 |
| m |
186.8018 |
| n |
0.2117 |
| Epoch |
2460800.5 |
| nobs |
690 |
| nopp |
21 |
| Years observed |
1997-2025 |
| rms |
0.84 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.788 |
|
| ep |
0.193 |
|
| sin(ip) |
0.068 |
|
| G |
0.150 |
|
| H |
15.810 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
X |
| Spectral Class Score |
0.309 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7884 |
0.1932 |
0.0684 |
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 |
| 15.81 |
|
|
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 |
X |
0.0515 |
0.0515 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |