1981 ER45
1981ER45, 1998 FF54, 1998FF54, 73667, J81E45R, J98F54F
All data for this body: [vot]
MPC data
| Name (number) |
1981 ER45 (73667) |
| a |
2.25955 |
| e |
0.10394 |
| i / sin(i) |
6.5214 /
0.11357
|
| q |
2.02469
|
| Q |
2.49442
|
| ω |
302.8630 |
| Node |
192.5993 |
| m |
34.1665 |
| n |
0.2902 |
| Epoch |
2460800.5 |
| nobs |
1207 |
| nopp |
19 |
| Years observed |
1981-2025 |
| rms |
0.82 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.260 |
|
| ep |
0.157 |
|
| sin(ip) |
0.122 |
|
| G |
0.150 |
|
| H |
16.390 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
2.791 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.2598 |
0.1569 |
0.1224 |
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 |
| 16.39 |
|
|
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 |
0.4652 |
0.4570 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |