1981 EU39
1981EU39, 1998 FA139, 1998FA139, 37552, J81E39U, J98FD9A
All data for this body: [vot]
MPC data
| Name (number) |
1981 EU39 (37552) |
| a |
2.61647 |
| e |
0.05433 |
| i / sin(i) |
9.7565 /
0.16946
|
| q |
2.47431
|
| Q |
2.75863
|
| ω |
56.4430 |
| Node |
2.2557 |
| m |
264.3966 |
| n |
0.2329 |
| Epoch |
2460800.5 |
| nobs |
1488 |
| nopp |
20 |
| Years observed |
1981-2025 |
| rms |
0.77 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.616 |
|
| ep |
0.049 |
|
| sin(ip) |
0.170 |
|
| G |
0.150 |
|
| H |
14.920 |
|
| Mass |
|
|
| D |
2.79 |
0.223 |
| pV |
0.359 |
0.1181 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
5.322 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6165 |
0.0485 |
0.1703 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.79 |
0.223 |
0.223 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.359 |
0.1181 |
0.1181 |
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 |
| 14.92 |
|
|
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 |
|
0.887 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |