Imagers
Visible Range (400-900nm)
Keo Scientific’s scientific imagers for visible studies span a wide range of instrument sizes and budgets. In general, price, sensitivity and detection thresholds are directly related to the diameter of the optics and the size of the sensor.
REGO
KEO SCIENTIFIC has teamed up with The University of Calgary's Auroral Imaging Group to make available to the communit...
Scout
The Keo Scout is a multispectral imager in a compact package. While it is sensitivity-wise inferior to the Sentry lin...
Sentry
The Keo Sentry is the classic workhorse of all-sky auroral and airglow imaging. These imagers have been produced and ...
Product Comparison
The following table shows performance vs. price for our most popular imagers. This should be helpful in determining which product is best for you, given your budget and scientific measurement objectives. Only rough performance figures and price ranges are given, as there are numerous configuration options. Contact Keo Scientific for a custom solution, specific to your particular measurement needs.
Sentry3 | Sentry4 (1×1 Bin) | Sentry4 (2×2 Bin) | Scout | REGO | |
|---|---|---|---|---|---|
Optics Diameter
| 3” | 4” | 4” | 2” | N/A |
Image Resolution | 1024 x 1024
| 2048 x 2048
| 1024 x 1024
| 2688 x 2200
| 512 x 512
|
Angular Resolution
(assuming fisheye lens) | Better than 0.2° center, 1° edge of field | Better than 0.1° center, 1° edge of field
| Better than 0.2° center, 1° edge of field
| Better than 0.1° center, 1° edge of field
| 0.35°
|
Spatial resolution
(100 km altitude, zenith) | Better than 1 km
| Better than 0.5 km
| Better than 1 km
| Better than 0.5 km
| 1.4 km
(230 km alt.)
|
Minimum Detectable Emission
@ 630nm in 1 sec exposure SNR=3
(typ.)
| ~1 kR | ~1 kR | ~300 R | ~6 kR | – |
Sensitivity @ 630nm (typ.) | ~30 R*s/dn | ~30 R*s/dn | ~10 R*s/dn | ~50 R*s/dn | ~20 R*s/dn |
Price (USD) | $95k+ | $145k+ | $145k+ | $25k+ | $135k |
