VO1/VO2 MARS VISUAL IMAGING SS EXPRMNT DATA REC BROWSE V2.0

This data set includes sub-sampled versions of Viking Orbiter images that are intended to facilitate rapid viewing of the image collection. The image data in these browse images have been reduced in size by sub-sampling the original image by a factor of 4 in both lines and samples. Thus, the data volume has been reduced by a factor of 16. A Viking Orbiter browse image contains 264 lines and 300 samples. A filtering procedure was used in generating the browse images because Viking Orbiter images commonly contain noisy data or are missing data. The brightness value of a pixel in a browse image is the median brightness value of an array of 4 by 4 pixels from the original image. If the 4 by 4 array of original pixels contained zero values, those zero value pixels were not used in determining the median value. Of course, if the entire 4 by 4 array contained zero value pixels, the corresponding pixel in the browse image was assigned a zero value.

Data and Resources

This dataset has no data

Field Value
accessLevel public
accrualPeriodicity irregular
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier urn:nasa:pds:context_pds3:data_set:data_set.vo1-vo2-m-vis-2-edr-br-v2.0_v8cx-qt4q
issued 2021-05-21
landingPage https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=VO1%2FVO2-M-VIS-2-EDR-BR-V2.0
license http://www.usa.gov/publicdomain/label/1.0/
modified 2025-07-17
programCode {026:005}
publisher National Aeronautics and Space Administration
references {https://pds.nasa.gov}
resource-type Dataset
source_datajson_identifier true
source_hash 43fcbb9a0515585f27b91c1d8a1f78800b1893316fd6d882e40c3f9acde72a70
source_schema_version 1.1
theme {"Earth Science"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • deimos
  • mars
  • phobos
  • star
  • viking
isopen False
license_id us-pd
license_title us-pd
maintainer Thomas Morgan
maintainer_email thomas.h.morgan@nasa.gov
metadata_created 2025-09-23T14:17:33.726058
metadata_modified 2025-09-23T14:17:33.726064
notes This data set includes sub-sampled versions of Viking Orbiter images that are intended to facilitate rapid viewing of the image collection. The image data in these browse images have been reduced in size by sub-sampling the original image by a factor of 4 in both lines and samples. Thus, the data volume has been reduced by a factor of 16. A Viking Orbiter browse image contains 264 lines and 300 samples. A filtering procedure was used in generating the browse images because Viking Orbiter images commonly contain noisy data or are missing data. The brightness value of a pixel in a browse image is the median brightness value of an array of 4 by 4 pixels from the original image. If the 4 by 4 array of original pixels contained zero values, those zero value pixels were not used in determining the median value. Of course, if the entire 4 by 4 array contained zero value pixels, the corresponding pixel in the browse image was assigned a zero value.
num_resources 0
num_tags 13
title VO1/VO2 MARS VISUAL IMAGING SS EXPRMNT DATA REC BROWSE V2.0