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... > Instruments > Earth Remote Sensing Instruments > Passive Remote Sensing > Photon/Optical Detectors > Cameras > WV60

Preferred term

WV60  

Definition

  • WV60 was designed and developed by BATC. The objective is to provide highly detailed imagery for a wide spectrum of applications such as precise map creation, change detection and in-depth image analysis (note that imagery must be re-sampled to 50 cm for non-US Government customers). Instrument optics - Use of QuickBird optical bench design - Telescope of 60 cm aperture Spectral range (panchromatic imagery only) 0.45 - 0.90 µm Spatial resolution (GSD) - 50 cm panchromatic at nadir - 55 cm out to 20º off-nadir Swath width 17.6 km at nadir Revisit frequency - 1.7 days at 1 m GSD or less - 5.9 days at 20º off-nadir or less (0.51 m GSD) Detectors - Silicon CCD array (8 µm pixel size) with a row of > 35,000 detectors - The array includes 64 stages of TDI (35,000 columns and 64 rows) TDI (Time Delay Integration) 6 selectable levels from 8 to 64 Data quantization 11 bit Geolocation accuracy of imagery after processing - 5.8 to 7.6 m without GPCs - 2 m with GPCs Instrument mass, power 380 kg, 250 W WV60 consists of the following elements: Optical subsystem, FPU (Focal Plane Unit) and the DPU (Digital Processing Unit), with FPU and DPU designed and custom-built by ITT Space Systems Division, formerly Kodak Remote Sensing Systems of Rochester, New York. The optical subsystem, mounted on an optical bench (with sunshield and internal baffling to suppress stray light), is of Ball design (telescope aperture of 60 cm diameter, lightweight structure, focal length of 8.8 m, f/14.7, the telescope mass is 138 kg, telescope size: 115 cm x 141 cm x 195 cm), providing a FOV (Field of View) of 2.12º, obtained with an unobscured off-axis three-mirror-anastigmatic (TMA) optical form. A fourth mirror is used to fold the light bundle for compact telescope packaging. The pushbroom imager is rigidly aligned with the S/C axis, providing a nominal body-pointing capability of ±40º into the along-track and cross-track directions (45º max). WV60 may also be used for stereo imaging by slewing the S/C fore and aft. The TDI feature provides a capability for low-light observations of imagery. The on-board processor provides real-time radiometric/geometric calibration and image compression for all imaging data. The focal plane array and the compression technique ADPCM (Adaptive Differential Pulse Code Modulation) employed are provided by Kodak. Instrument mass = 380 kg, instrument power = 250 W. DigitalGlobe's imagery may be used for a number of mapping and planning activities within the defense, intelligence, and commercial markets around the world. Spectral band Center wavelength (nm) Minimum lower band edge (nm) Maximum upper band edge (nm) Pan (WorldView-1) imager 650 400 900 Pan (WorldView-2) imager 625 450 800 MS1 (NIR1) 835 770 895 MS2 (red) 660 630 690 MS3 (green) 545 510 580 MS4 (blue) 480 450 510 MS5 (red edge) 725 705 745 MS6 (yellow) 605 585 625 MS7 (coastal) 425 400 450 MS8 (NIR2) 950 860 1040 (en)

Broader concept

Change note

  • 2018-07-11 12:50:15.0 [mmorahan] Insert Concept add broader relation (WV60 [d8ff2cc4-d922-4661-8bba-fd78c7672ce9,367843] - Cameras [d322ae9d-bde0-448f-948d-777aef096eb6,348777]);
  • 2018-07-11 12:53:22.0 [mmorahan] insert AltLabel (id: null category: primary text: WorldView-60 camera language code: en); insert Definition (id: null text: WV60 was designed and developed by BATC. The objective is to provide highly detailed imagery for a wide spectrum of applications such as precise map creation, change detection and in-depth image analysis (note that imagery must be re-sampled to 50 cm for non-US Government customers). Instrument optics - Use of QuickBird optical bench design - Telescope of 60 cm aperture Spectral range (panchromatic imagery only) 0.45 - 0.90 µm Spatial resolution (GSD) - 50 cm panchromatic at nadir - 55 cm out to 20º off-nadir Swath width 17.6 km at nadir Revisit frequency - 1.7 days at 1 m GSD or less - 5.9 days at 20º off-nadir or less (0.51 m GSD) Detectors - Silicon CCD array (8 µm pixel size) with a row of > 35,000 detectors - The array includes 64 stages of TDI (35,000 columns and 64 rows) TDI (Time Delay Integration) 6 selectable levels from 8 to 64 Data quantization 11 bit Geolocation accuracy of imagery after processing - 5.8 to 7.6 m without GPCs - 2 m with GPCs Instrument mass, power 380 kg, 250 W WV60 consists of the following elements: Optical subsystem, FPU (Focal Plane Unit) and the DPU (Digital Processing Unit), with FPU and DPU designed and custom-built by ITT Space Systems Division, formerly Kodak Remote Sensing Systems of Rochester, New York. The optical subsystem, mounted on an optical bench (with sunshield and internal baffling to suppress stray light), is of Ball design (telescope aperture of 60 cm diameter, lightweight structure, focal length of 8.8 m, f/14.7, the telescope mass is 138 kg, telescope size: 115 cm x 141 cm x 195 cm), providing a FOV (Field of View) of 2.12º, obtained with an unobscured off-axis three-mirror-anastigmatic (TMA) optical form. A fourth mirror is used to fold the light bundle for compact telescope packaging. The pushbroom imager is rigidly aligned with the S/C axis, providing a nominal body-pointing capability of ±40º into the along-track and cross-track directions (45º max). WV60 may also be used for stereo imaging by slewing the S/C fore and aft. The TDI feature provides a capability for low-light observations of imagery. The on-board processor provides real-time radiometric/geometric calibration and image compression for all imaging data. The focal plane array and the compression technique ADPCM (Adaptive Differential Pulse Code Modulation) employed are provided by Kodak. Instrument mass = 380 kg, instrument power = 250 W. DigitalGlobe's imagery may be used for a number of mapping and planning activities within the defense, intelligence, and commercial markets around the world. Spectral band Center wavelength (nm) Minimum lower band edge (nm) Maximum upper band edge (nm) Pan (WorldView-1) imager 650 400 900 Pan (WorldView-2) imager 625 450 800 MS1 (NIR1) 835 770 895 MS2 (red) 660 630 690 MS3 (green) 545 510 580 MS4 (blue) 480 450 510 MS5 (red edge) 725 705 745 MS6 (yellow) 605 585 625 MS7 (coastal) 425 400 450 MS8 (NIR2) 950 860 1040 language code: en);
  • 2019-02-22 17:09:36.0 [mmorahan] insert WeightedRelation (id: null related concept uuid: d8ff2cc4-d922-4661-8bba-fd78c7672ce9 relationship type: null relationship value: null generated by: null);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/d8ff2cc4-d922-4661-8bba-fd78c7672ce9

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