PDS_VERSION_ID             = PDS3

RECORD_TYPE                = UNDEFINED
^PDF_DOCUMENT              = "NLR.PDF"
^RTF_DOCUMENT              = "NLR.RTF"

OBJECT                     = PDF_DOCUMENT
  DOCUMENT_NAME            = "NEAR LASER RANGEFINDER:A TOOL FOR THE MAPPING
                              AND TOPOLOGIC STUDY OF ASTEROID 433 EROS"
  DOCUMENT_TOPIC_TYPE      = "INSTRUMENT DESCRIPTION"
  INTERCHANGE_FORMAT       = BINARY
  DOCUMENT_FORMAT          = "ADOBE PDF"
  PUBLICATION_DATE         = 1998
  DESCRIPTION              = "NEAR Laser Rangefinder Description."
  ABSTRACT_TEXT            = "In 1999, after a 3-year transit through 
space, the Near Earth Asteroid Rendezvous (NEAR) spacecraft placed a
scientific payload consisting of five instruments into a low-altitude
orbit (35 km) about the asteroid 433 Eros for 1 year. One instrument,
the NEAR Laser Rangefinder (NLR), used infrared laser pulses to
provide astrophysicists with precision altimetry data measurements that
were previously unavailable from asteroid observations. These data
accurately mapped Eros's topology, identified and characterized 
small-scale surface features, and precisely determined overall volume and
mass once they were combined with navigation data. Objectives associated
with the NLR science mission are presented along with performance
specifications and instrument design details. The method by which NLR
performance was analyzed is described, as are tests us to verify its
performance and operability. During performance testing, an 'end-to-end'
test was conducted, where the integrated NLR instrument was operated in
free space using a 216.4-m hallway. Test results fully verified all
instrument interfaces and indicated that NLR performance parameters
were well within all specifications. In addition, range noise and biases
were repeatable to 1 count, which is the minimum level possible for a
direct-detection rangefinder."
END_OBJECT                 = PDF_DOCUMENT

OBJECT                     = RTF_DOCUMENT
  DOCUMENT_NAME            = "NEAR LASER RANGEFINDER:A TOOL FOR THE MAPPING
                              AND TOPOLOGIC STUDY OF ASTEROID 433 EROS"
  DOCUMENT_TOPIC_TYPE      = "INSTRUMENT DESCRIPTION"
  INTERCHANGE_FORMAT       = BINARY
  DOCUMENT_FORMAT          = "RICH_TEXT"
  PUBLICATION_DATE         = 1998
  DESCRIPTION              = "NEAR Laser Rangefinder Description."
  ABSTRACT_TEXT            = "In 1999, after a 3-year transit through 
space, the Near Earth Asteroid Rendezvous (NEAR) spacecraft placed a
scientific payload consisting of five instruments into a low-altitude
orbit (35 km) about the asteroid 433 Eros for 1 year. One instrument,
the NEAR Laser Rangefinder (NLR), used infrared laser pulses to
provide astrophysicists with precision altimetry data measurements that
were previously unavailable from asteroid observations. These data
accurately mapped Eros's topology, identified and characterized 
small-scale surface features, and precisely determined overall volume and
mass once they were combined with navigation data. Objectives associated
with the NLR science mission are presented along with performance
specifications and instrument design details. The method by which NLR
performance was analyzed is described, as are tests us to verify its
performance and operability. During performance testing, an 'end-to-end'
test was conducted, where the integrated NLR instrument was operated in
free space using a 216.4-m hallway. Test results fully verified all
instrument interfaces and indicated that NLR performance parameters
were well within all specifications. In addition, range noise and biases
were repeatable to 1 count, which is the minimum level possible for a
direct-detection rangefinder."

END_OBJECT                 = RTF_DOCUMENT 

END