From: Low-energy particle experiments–electron analyzer (LEPe) onboard the Arase spacecraft
Parameter | Unit | Remark | |
---|---|---|---|
Dimension | \(180.0\hbox {DIA} \times 204.5\hbox {H}\) | mm | Upper cylinder part |
\(193.\hbox {0D} \times 131.0\hbox {W }\times 64.0\hbox {H}\) | mm | Lower box part | |
Mass | 5.512 | Kg | |
Power consumption | 8.8 | W | 44 V, 0.20 A, incl. PSU’s efficiency |
Raw data production | 24.6 | kbyte/spin | Science data, w/o compression |
G-factor | Incl. mesh transmission | ||
\(9.34\times 10^{-4}\) | \(\hbox {cm}^2\) sr keV/keV | Coarse ch, averaged | |
\(2.15\times 10^{-4}\) | \(\hbox {cm}^2\) sr keV/keV | Fine ch, averaged | |
Energy range | 19–19,000 | eV | At 4 kV HV |
Energy step | 32 | steps | |
Energy resolution | 9.2 | % | FWHM |
Field of views | \(2.98\,\times \sim 270\) | deg | |
Angular resolution | \(\hbox {EL}\times \hbox {AZ}\), FWHM | ||
\(2.89 \times 21.5\) | deg | Coarse ch, averaged | |
\(3.05 \times 4.71\) | deg | Fine ch, averaged |