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The Keo Sentry-SWIR is a new, state-of-the-art compact SWIR imager. Its design is based on the field-proven Keo Sentry line of visible and near infrared all-sky imagers that have been operational for decades in aeronomy and auroral research.
While designed for use as a Mesospheric Thermal Mapper (MTM) imager, the Sentry-SWIR is equally suitable for observing other airglow/auroral emissions in the SWIR.
Note: This imager is classified as export controlled and as such may be subject to export restrictions to your country. Contact Keo Scientific to find out more and to determine if you will be subject to such restrictions.
Up to f/1 effective all-sky imaging through narrow-band interference filters.
Available with a 6- or 8-position filterwheel, or with a single-filter drawer.
A high-reliability capping shutter acts as a bright-light protection mechanism to protect filters from solar exposure during daytim
The included GUI-based Synopticx automatic ephemerides-driven instrument control & data acquisition Windows software ensures a truly ‘turn-key’ solution. Linux instrument control software (command-line based imaging daemon) available upon request.
Mesospheric Thermal Mapper (MTM): The imager is provided fully calibrated as a turn-key instrument for mapping temperature in the upper Mesosphere lower Thermosphere based on precise measurements of OH P1(2) at 1523.68 nm and P1(4) at 1542.79 nm.
Number of Filters: All Keo Sentry scientific imagers, including the Sentry-SWIR, can be configured with a filter wheel with 6 or 8 filter positions. Keo Scientific’s filter wheels are robust and designed to operate reliably for 10+ years in the field. Interference filters are essentially etalons and thus performance is affected by ambient temperature. All Keo filter wheels are carefully temperature-stabilized to within ±0.1°C with internal trim heating (and optional cooler) for optimum filter performance.
Imaging Sensor: Sensor-head options include a range of InGaAs sensors with quantum efficiencies better than 80% across the 950-1600 nm range and maintenance-free thermoelectric cooling to -80°C or better.
Sentry-SWIR w/
NIRvana Sensor |
Sentry-SWIR w/
Xenics Sensor |
|
Field of View | 120° | 128° |
Angular Resolution | <0.25° | ~0.25° |
Spatial Resolution | ~400 m | ~440 m |
Effective f-number | f/1 | |
Filter Diameter | 3 inches | |
Filter Positions | 1, 6, or 8 | |
Filter Switching Speed | <1 sec between adjacent positions | |
Filter Thermal Stability1 | ±0.1°C | |
Minimum filter bandwidth (FWHM) | 1.0 nm | |
Capping Shutter Reliability | >1,000,000 open/close cycles | |
Software | Synopticx Data Acquisition and Control Software | |
Operating Environment | 0 C to +30 C, non-condensing | |
Dimensions (typical) | Single Filter: 75 x 15 x 18 cm
Multi-Filter: 75 x 30 x 35 cm |
|
Weight | Single Filter: 10 kg
Multi-Filter: 15 kg |
Speak with our team to learn more about our products, services, and how we can help you achieve success.