1981 EK31
1981EK31, 2000 WQ6, 2000WQ6, 90690, J81E31K, K00W06Q
All data for this body: [vot]
MPC data
| Name (number) |
1981 EK31 (90690) |
| a |
2.62356 |
| e |
0.08799 |
| i / sin(i) |
10.2179 /
0.17739
|
| q |
2.39270
|
| Q |
2.85441
|
| ω |
20.6847 |
| Node |
350.3429 |
| m |
307.5690 |
| n |
0.2319 |
| Epoch |
2460800.5 |
| nobs |
1046 |
| nopp |
21 |
| Years observed |
1981-2025 |
| rms |
0.80 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.623 |
|
| ep |
0.055 |
|
| sin(ip) |
0.181 |
|
| G |
0.150 |
|
| H |
15.430 |
|
| Mass |
|
|
| D |
3.89 |
0.271 |
| pV |
0.117 |
0.0211 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
D |
| Spectral Class Score |
1.087 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6230 |
0.0546 |
0.1808 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.89 |
0.271 |
0.271 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.117 |
0.0211 |
0.0211 |
Masiero |
2011ApJ...741...68M |
NEATM |
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 |
| 15.43 |
|
|
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 |
| D |
D |
0.1812 |
0.1810 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |