1981 ET5
1981ET5, 1998 HU100, 1998HU100, 39486, J81E05T, J98HA0U
All data for this body: [vot]
MPC data
| Name (number) |
1981 ET5 (39486) |
| a |
2.57644 |
| e |
0.05439 |
| i / sin(i) |
10.7742 /
0.18694
|
| q |
2.43631
|
| Q |
2.71656
|
| ω |
143.9485 |
| Node |
213.0146 |
| m |
62.1945 |
| n |
0.2383 |
| Epoch |
2460800.5 |
| nobs |
1911 |
| nopp |
22 |
| Years observed |
1981-2025 |
| rms |
0.76 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.576 |
|
| ep |
0.016 |
|
| sin(ip) |
0.197 |
|
| G |
0.150 |
|
| H |
14.950 |
|
| Mass |
|
|
| D |
7.00 |
0.190 |
| pV |
0.048 |
0.0109 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
D |
| Spectral Class Score |
3.060 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5759 |
0.0163 |
0.1968 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 7.00 |
0.190 |
0.190 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.048 |
0.0109 |
0.0109 |
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 |
| 14.95 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |