Instrument
Thermal IR Spectrometer (TIRS-PREFIRE)
TIRS opto-mechanical design
- Flight-proven hardware and design — TIRS uncooled detector and filter block design maturity are from Mars Climate Sounder and Diviner (lunar)
- Instrument has adequate margins (mass, power, volume, and data rate)
- Orbit and mission design flexibility for accommodating different launch opportunities
| Technical Specifications | |
|---|---|
| Thermopile array | 64 channels x 8 pixels |
| Spectral sampling | approximately 0.84 µm, from 3-54 µm |
| Spatial coverage | 8 separated pixels, 11.8 km cross-track surface footprint (at launch), multiple surface footprint overlaps along-track |
| Mass | < 3 kg |
| Data rate | 12 kbps |
| Power | 4.5 W |