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Description

The Hawkeye instrument, flown onboard the SeaHawk CubeSat, was optimized to provide high quality, high resolution imagery (120 meter) of the open ocean, coastal zones, lakes, estuaries and land features. This ability provides a valuable complement to the lower resolution measurements from previous missions like SeaWiFS, MODIS and VIIRS. The SeaHawk CubeSat mission is a partnership between NASA and the University of North Carolina, Wilmington (UNCW), Cloudland Instruments and AAC-Clyde Space and is funded by the Moore Foundation under a grant for the Sustained Ocean Color Observations with Nanosatellites (SOCON).

Version Description

Initial Dataset

Product Summary

Platforms
SeaHawk-1
Instruments
HawkEye
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2018-12-03 to 2023-10-27
Data Partner
Ocean Biology Processing Group (OBPG) ,
Ocean Biology Distributed Active Archive Center (OB.DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/GCDC/OB.DAAC)
Concept ID
C3160685741-OB_CLOUD
Data State
COMPLETE
Number of Files/Granules
7728
Processing Level
1
Published
Updated
Science Keywords
Ocean Color

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

NASA Ocean Biology Processing Group. (2024). SeaHawk-1 HawkEye Level-1A?? Data, version 1 [Data set]. NASA Ocean Biology Distributed Active Archive Center. https://doi.org/10.5067/SEAHAWK-1/HAWKEYE/L1A/DATA/1 Date Accessed: 2025-12-14

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
earth_view_data/band_1 earth_view_data/band_1 counts uint16 0 100 to 65535 N/A
earth_view_data/band_2 earth_view_data/band_2 counts uint16 0 100 to 65535 N/A
earth_view_data/band_3 earth_view_data/band_3 counts uint16 0 100 to 65535 N/A
earth_view_data/band_4 earth_view_data/band_4 counts uint16 0 100 to 65535 N/A
earth_view_data/band_5 earth_view_data/band_5 counts uint16 0 100 to 65535 N/A
earth_view_data/band_6 earth_view_data/band_6 counts uint16 0 100 to 65535 N/A
earth_view_data/band_7 earth_view_data/band_7 counts uint16 0 100 to 65535 N/A
earth_view_data/band_8 earth_view_data/band_8 counts uint16 0 100 to 65535 N/A
earth_view_data/band_dark_pixels earth_view_data/band_dark_pixels counts uint16 0 100 to 2047 N/A
earth_view_data/finder earth_view_data/finder counts uint16 0 10 to 1023 N/A
navigation_data/att_quat navigation_data/att_quat N/A float32 -999.90002441406 -1 to 1 N/A
navigation_data/att_time navigation_data/att_time seconds float64 -999 0 to 88400 N/A
navigation_data/GPS_telemetry navigation_data/GPS_telemetry N/A uint8 N/A N/A N/A
navigation_data/gyro_rates navigation_data/gyro_rates radians/second float32 -999 -1 to 1 N/A
navigation_data/mag1 navigation_data/mag1 float32 -999 -1 to 1 N/A
navigation_data/mag2 navigation_data/mag2 float32 -999 -1 to 1 N/A
navigation_data/orb_pos navigation_data/orb_pos kilometers float64 -999999 -7000 to 7000 N/A
navigation_data/orb_time navigation_data/orb_time seconds float64 -999 0 to 86400 N/A
navigation_data/orb_vel navigation_data/orb_vel kilometers/second float64 -999 -8 to 8 N/A
navigation_data/processed_sensor_time navigation_data/processed_sensor_time seconds float64 -999 0 to 88400 N/A
navigation_data/rwheels navigation_data/rwheels radians/second float32 -999 -785 to 785 N/A
navigation_data/sensor_bus_telemetry navigation_data/sensor_bus_telemetry N/A uint8 N/A N/A N/A
navigation_data/sensor_time navigation_data/sensor_time seconds float64 -999 0 to 88400 N/A
navigation_data/sun_vector navigation_data/sun_vector N/A float32 -999 -1 to 1 N/A
parameters_telemetry_data/CCD_temperatures parameters_telemetry_data/CCD_temperatures degrees C float32 -999 0 to 50 N/A
parameters_telemetry_data/CCD_voltages parameters_telemetry_data/CCD_voltages volts float32 -999 0 to 20 N/A
parameters_telemetry_data/current_monitors parameters_telemetry_data/current_monitors milliamps float32 -999 0 to 500 N/A
parameters_telemetry_data/FPGA_temperature parameters_telemetry_data/FPGA_temperature degrees C float32 -999 0 to 50 N/A
parameters_telemetry_data/FPGA_version parameters_telemetry_data/FPGA_version N/A int16 -999 1 to 9999 N/A
parameters_telemetry_data/FPGA_voltages parameters_telemetry_data/FPGA_voltages volts float32 -999 0.89999997615814 to 1.8999999761581 N/A
parameters_telemetry_data/overcurrent parameters_telemetry_data/overcurrent N/A int16 -999 N/A N/A
parameters_telemetry_data/software_version parameters_telemetry_data/software_version N/A int16 -999 1 to 9999 N/A
parameters_telemetry_data/solenoid_voltage parameters_telemetry_data/solenoid_voltage volts float32 -999 0 to 20 N/A
parameters_telemetry_data/telemetry parameters_telemetry_data/telemetry N/A uint16 N/A 0 to 65535 N/A
parameters_telemetry_data/telemetry_counter parameters_telemetry_data/telemetry_counter 10 millisec int16 -999 0 to 9999 N/A
parameters_telemetry_data/tlm_time parameters_telemetry_data/tlm_time seconds float64 -999 0 to 88400 N/A
parameters_telemetry_data/tlm_time_stamp parameters_telemetry_data/tlm_time_stamp milliseconds uint32 2147483648 0 to 200000 N/A
scan_line_attributes/delta_time scan_line_attributes/delta_time milliseconds int32 -999 0 to 200000 N/A
scan_line_attributes/finder_delta_time scan_line_attributes/finder_delta_time milliseconds int32 -999 0 to 200000 N/A
scan_line_attributes/finder_time scan_line_attributes/finder_time seconds float64 -999 0 to 88400 N/A
scan_line_attributes/scan_time scan_line_attributes/scan_time seconds float64 -999 0 to 88400 N/A
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