1981 EW8
1981EW8, 39491, J81E08W
All data for this body: [vot]
MPC data
| Name (number) |
1981 EW8 (39491) |
| a |
2.57132 |
| e |
0.20662 |
| i / sin(i) |
3.6299 /
0.06331
|
| q |
2.04003
|
| Q |
3.10262
|
| ω |
237.2292 |
| Node |
215.3779 |
| m |
307.1351 |
| n |
0.2390 |
| Epoch |
2460800.5 |
| nobs |
1417 |
| nopp |
18 |
| Years observed |
1979-2024 |
| rms |
0.79 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.574 |
|
| ep |
0.180 |
|
| sin(ip) |
0.077 |
|
| G |
0.150 |
|
| H |
15.380 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
9.377 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5741 |
0.1799 |
0.0766 |
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 |
| 15.38 |
|
|
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 |
0.5892 |
0.7810 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |
| S |
S |
0.9736 |
0.7810 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |