1981 ES7
1981ES7, 37540, J81E07S
All data for this body: [vot]
MPC data
| Name (number) |
1981 ES7 (37540) |
| a |
2.30600 |
| e |
0.16257 |
| i / sin(i) |
4.5741 /
0.07975
|
| q |
1.93112
|
| Q |
2.68088
|
| ω |
15.1393 |
| Node |
223.4589 |
| m |
169.4810 |
| n |
0.2815 |
| Epoch |
2460800.5 |
| nobs |
1330 |
| nopp |
20 |
| Years observed |
1981-2024 |
| rms |
0.78 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.306 |
|
| ep |
0.178 |
|
| sin(ip) |
0.088 |
|
| G |
0.150 |
|
| H |
15.790 |
|
| Mass |
|
|
| D |
2.08 |
0.436 |
| pV |
0.215 |
0.1269 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
6.914 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3060 |
0.1780 |
0.0880 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.08 |
0.436 |
0.436 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.215 |
0.1269 |
0.1269 |
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 |
| 15.79 |
|
|
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 |
|
0.08 |
|
Bus |
VIS |
Carvano |
2010A&A...510A..43C |
PHOT |
| S |
S |
0.4782 |
0.5870 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |
| S |
S |
0.6475 |
0.5870 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |