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HyperOCR Hyperspectral Radiometer

Hyperspectral radiometers, with a calibrated range of 350 - 800 nm and fully characterized cosine response, are designed to be mounted on real-time profilers, coastal and deep water buoys, autonomous underwater vehicles, research vessels and airplanes.

Hyperspectral ocean color radiometer (HyperOCR) sensor series are designed for applications where performance, size and power are key constraints. Our hyperspectral radiometers can be mounted on real-time profilers, moored on autonomous deepwater buoys, autonomous underwater vehicles as well as on ships and airplanes for above-water optic applications.

The HyperOCR optical sensors feature enhanced performance specifications such as increased sensitivity and resolution, providing significant advantages for key applications such as above-water and profiling radiometry. The HyperOCR sensors are fully digital optical packages, providing 136 channels of optical data from 350 to 800 nm.


  • Irradiance and Radiance radiometers for in-water and in-air applications
  • 350 - 800 nm calibrated range
  • Fully characterized cosine response
  • Integrated shutter for accurate dark correction
  • Networking capability
  • Data logging and processing software included
  • Fast sampling rate (up to 3 Hz)
  • Compatible with the Bioshutter anti-biofouling solution

View Live data from Sea-Bird Scientific Hyperspectral Radiometers:



Irradiance Air

Irradiance Water

Radiance Air

Radiance Water

Field of View
Cosine RMS Error 3% 0 - 60º Cosine RMS Error 3% 0 - 60º 11.5° Half-angleHalf-radiance 8.5º Half angle Half-radiance
  10% 60 - 85º 10% 60 - 85º    
  (350-800 nm) (350-800 nm)3    



Typical Noise Equvalent (Ir)Radiance* 1.0 x 10-3 1.5 x 10-3 5.3 x 10-5 9.0 x 10-5
  (μW cm-2 nm-1) (μW cm-2 nm-1) (μW cm-2 nm-1 sr-1) (μW cm-2 nm-1 sr-1)
Saturation* 9.0 13.5 0.5 0.8
*At 500nm with 1024 ms integration time (μW cm-2 nm-1) (μW cm-2 nm-1) (μW cm-2 nm-1 sr-1) (μW cm-2 nm-1 sr-1)



Depth Rating:
Operating Temperature:
39.9 cm
6.0 cm
1.0 kg
300 m
-10 to +50 ºC
39.9 cm
6.0 cm
1.0 kg
300 m
-10 to +50 ºC
36.2 cm
6.0 cm
1.0 kg
300 m
-10 to +50 ºC
36.2 cm
6.0 cm
1.0 kg
300 m
-10 to +50 ºC


Optical Characteristics

Spectrograph range: 305 - 1100 nm
Factory calibration: 350 – 800 nm
Spectral sampling: 3.3 nm/pixel
Spectral accuracy: 0.3 nm
Spectral resolution: 10 nm
Stray light: <1×10-3
Detectors: 256 channel silicon photodiode array
Entrance Slit: 70 x 2500 μm
Pixel Size: 25 x 2500 μm


Electrical Characteristics

Acquisition module: 16 bit ADC
Integration time: 4 - 2048 ms (adaptive gain feature),
  1 ms resolution
Frame rate: 3 Hz (at 128 ms integration time)
Data rate: 9600 – 115200 bps (user selectable)
Telemetry interface: RS-422 / RS-232 (isolated)
Network Interface: Proprietary RS-485 SatNet
Power requirements: 9 – 18 or 18 – 72 VDC
  (2 Watts nominal)


The list below includes (as applicable) the current product brochure, manual, and quick guide; software manual(s); and application notes.

Title Type Publication Date PDF File
HyperOCR Manual Product Manual Thursday, June 22, 2017 Manual-HyperOCR+Operation+SAT-DN-00249.pdf
ProSoft User Manual Software Manual Wednesday, June 14, 2017 ProSoftUserManual7.7SAT-DN-00228.pdf
SatView Manual Software Manual Wednesday, June 14, 2017 SatView-Manual.pdf
SatCon Manual Software Manual Wednesday, March 9, 2011 SatCon-Manual.pdf

SatView is a real-time interactive data logging and display application for use with Sea-Bird radiometers. SatView makes it easy to connect to your Satlantic instruments and view time series, spectral plots, and depth profiles while capturing data for subsequent conversion and post-processing.

SatView features include:

Version 2.9.5 released April 11, 2014

SatView 2.9 provides Windows 7 compatibility, improved PAR sensor support, wavelength range settings for spectral views, additional cast card fields for post-processing, support for up to 96 serial ports, GPS data validation and many more. Please refer to the release notes for a detailed list of recent improvements.

SatView-2.9.5-b7-x86.exe for Windows 7/8/10

Version 7.7.19 released April 12, 2016

ProSoft 7.7.19 provides a number of key improvements including support for ancillary SAS sensors, support for  BETA_IRED and BETA_GREEN sensors to calculate backscattering, corrected backscattering coefficient units, robust handling of corrupt timer data, HyperSAS IR camera integration, interruptable processing, and more. For a detailed list of recent fixes and features, please refer to the release notes.

ProSoft7.7.19-b2_Setup.exe for Windows 7/8/10

SatCon is a software utility for converting raw binary data, as logged by SatView, into readable ASCII text suitable for import by third party applications such as spreadsheets or databases. Data can be extracted in calibrated physical units or raw binary counts. SatCon can be operated interactively through a user friendly graphical interface, or in batch mode as a background process.

For minimum system requirements, installation instructions, and new features, please refer to the release notes in the SatCon User Manual.

Version 1.5.5 released April 28, 2011
SatCon-1.5.5-b2-x86.exe for Windows 7/8/10

Why do hyperspectral HOCR sensors require two calibration files?

HOCR sensors output two distinct frame types (light and dark).  Thermal dark current changes that occur within the spectrograph are corrected across the full spectrum with the use of a mechanical dark shutter that closes periodically in the radiometer.  This creates a unique frame of data that must be collected separately from the light data.  SATView requires both calibration files so that it collects both data outputs.

What are SIP files?

Files that are delivered with Sea-Bird Scientific and third party equipment to describe the sensors data output and calibration coefficients come in two types. Calibration files or *.cal files and telemetry definition format files or *.tdf files. In some cases, systems are created that network many sensors together and their combined data is provided in one serial output. The simplest example is a HOCR sensor that generates both light and dark frames. A more complex example is a HPROII profiling system that may contain as many as 5 sensors and 7 individual calibration and tdf files. These files must be used to both collect and process the data. This can become quite confusing to keep track of all these files so Sea-Bird Scientific developed SIP files. All CAL and TDF files required for a system are zipped using winzip and the extension changed from *.ZIP to *.SIP. The file name includes the system description (usually the network master serial number) and the creation date. This SIP file can then be used in place of individual files to collect and process data.

Can I use in air irradiance sensors in water and vice versa?

Sea-Bird Scientific has developed cosine collectors that are specifically designed to optimize performance in the intended media of operation (air or water). So in water irradiance sensors have cosine collectors that provide an excellent response in water but not in air. In air irradiance sensors provide an excellent cosine response in air but not in water.

Bioshutter II

The Bioshutter II is an autonomous underwater shutter attachment designed for use with Satlantic radiometers. The primary purpose of the shutter is to prevent marine bio-fouling of the sensor optics in moored, time-series application. Copper, and copper-based alloys have long been known to have good resistance against bio fouling and have been used in a diverse variety of commercial applications. Scientists working at the University of California Santa Barbara Ocean Physics Lab under the auspices of the National Ocean Partnership Programs' (NOPP) Ocean System of Chemical, Optical, and Physical Experiments (O-SCOPE) project developed an underwater shutter device for use with instruments such as Satlantic's OCR-500 and HyperOCR series instruments. The Satlantic Bioshutter II device builds upon the success of this instrument by combining an innovative copper shutter and an input power controlled motor drive assembly to ensure robust operation in harsh marine environments.