Table 2: TENACIUS ENA Imager Compared with Complementary Imagers |
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MISSION |
TENACIUS |
IMAGE |
TWINS |
POLAR |
Mission Type |
UNEX |
MIDEX |
MOO |
ISTP |
Mission Cost (excluding launch) |
<6 M$ |
~45M$ |
~15M$ |
>150M$ |
ENA Instrument |
IEPS |
HENA |
MENA |
IPS |
Global Imaging |
regional |
yes |
yes |
yes |
Energy Range (keV) |
15-400 |
10-200 |
1 – 100 |
15-1500 |
Energy Resolution (DE/E) |
0.15 |
0.7 |
0.4 |
0.15 |
Number of Energy Bins |
8 |
4 |
16 |
|
Angular Resolution (degrees) |
12 ´ 20 |
4 ´ 6 |
4 ´ 4 |
12 ´ 20 |
Typ. Projected Spatial Res. (RE) |
0.03 ´ 0.05 |
0.5 ´ 0.75 |
0.5 ´ 0.5 |
1.9 ´ 3.2 |
Typ. Temporal Res (seconds) |
10 |
300 |
60 |
96 |
Typ. pixel dimension (mm) |
2.0 ´ 3.5 |
1.5 ´ 1.5 |
1.5 ´ 3.0 |
|
Geom. Fact./pixel (cm2-sr) |
5´10 -3 |
1.4´10-3 |
3´10 -3 |