EHIS Performance Requirements
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EHIS Performance Requirements Chart |
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| Parameter | Reference | Requirement | EHIS Design Concept | ||
| Particle energy range | PORD156 | 10 MeV/nucleon to 200 MeV/nucleon | 10 MeV/nucleon to 200 MeV/nucleon | ||
| Particle energy bands | PORD158 | 5 logarithmically spaced | 5 logarithmically spaced | ||
| Particle mass bands | PORD157; Appendix I | H through Ni, individually | H through Ni, individually | ||
| Particle flux range (cm2 s sr MeV/nuc)-1 | PORD167 | Maximum: 5.0 x 104(E/nuc)-2.3 Minimum: 5.5 x 10-2 (E/nuc)-1.0 |
Maximum: 5.0 x 104(E/nuc)-2.3 Minimum: 5.5 x 10-2 (E/nuc)-1.0 |
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| Maximum flux sensitivity | PORD169 | No rollover through x3 max | No rollover through x3 max | ||
| Minimum flux sensitivity | PORD168 | 10 counts above background in each band (mass and energy) in a 5-minute period | 10 counts above background in each band (mass and energy) in a 5-minute period | ||
| Flux measurement accuracy | PORD160 | 25% via ground calibration | 25% via ground calibration | ||
| Out-of-band response | PORD97 | <10% after ground processing | <10% after ground processing | ||
| Viewing Direction | PORD162 | -Z (anti-Earthward) | -Z (anti-Earthward) | ||
| Sensor FOV | PORD162 | <=30 deg cone half angle | 28 deg cone half angle | ||
| Data refresh rate | PORD164 | 5 minutes | 5 minutes | Data latency | PORD165 | <5 sec | <5 sec EHIS + DPU |
| Noise | PORD86 | <10% thresholds >100 kEV | <10% thresholds >100 kEV | ||
| Energy band stability | PORD88 | < +/- 3% | < +/- 3% | ||
| Size | UIID47 | 15,080 cm3 EHIS CBE | |||
| Maximum Dimension | UIID48 | <=40 cm | 35.4 cm (chassis) | ||
| Power | UIID36 | 6.3 W EHIS CBE | |||
| Mass | UIID44 | 4.5 kg EHIS CBE | |||
| Data rate | UIID27 | 512 bps EHIS CBE | |||
| EHIS Modes | PORD52 PORD59 PORD61 PORD90 |
Safe Mode Normal Mode Diagnostic Mode In Flight Calibration |
Safe Mode Normal Mode Diagnostic Mode In Flight Calibration |
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