Unit Classes Standard Values

From The SBN Wiki
Revision as of 12:28, 22 July 2020 by Raugh (talk | contribs) (Update to schema 1.13.0.0)
Jump to navigation Jump to search

The PDS4 master schema defines a set of unit classes - related units of measure - to be used for defining label attributes in all dictionaries. Following is a list of these unit classes and the standard values allowed for attributes with that unit type. Case, spacing, and abbreviation all count when it comes to matching values.


As of 2017-01-11, this page has been updated for release 1.7.0.0 of the PDS4 Information Model.



Acceleration

  • cm/s**2
  • km/s**2
  • m/s**2

Amount of Substance

  • mol

Angle

  • arcmin
  • arcsec
  • deg
  • hr
  • mrad
  • rad

Angular Velocity

  • deg/day
  • deg/s
  • rad/s

Area

  • m**2

Current

  • A
  • mA

Energy

  • J
  • MeV
  • eV
  • keV

Force

  • N

Frame Rate

  • frame/s

Frequency

  • Hz

Gmass

  • km**3s**-2

Length

  • AU
  • Angstrom
  • cm
  • km
  • m
  • micrometer
  • mm
  • nm

Map Scale

  • km/pixel
  • m/pixel
  • mm/pixel
  • pixel/deg

Mass

  • g
  • kg

Miscellaneous Units

  • DN
  • electron/DN
  • pixel

Optical Path Length

  • airmass

Pixel Resolution - Angular

  • arcsec/pixel
  • deg/pixel
  • radian/pixel

Pixel Resolution - Linear

  • km/pixel
  • m/pixel
  • mm/pixel

Pixel Resolution - Map

  • deg/pixel
  • km/pixel
  • m/pixel
  • mm/pixel

Pixel Scale - Angular

  • pixel/arcsec
  • pixel/deg
  • pixel/radian

Pixel Scale - Linear

  • pixel/km
  • pixel/m
  • pixel/mm

Pixel Scale - Map

  • pixel/deg

Pressure

  • Pa
  • bar
  • hPa
  • mbar

Radiance

  • W*m**-2*sr**-1
  • W/(m**2*sr)

Rates

  • counts/bin
  • kilobits/s

Solid Angle

  • sr

Spectral Irradiance

  • SFU  —  NOTE: Do not use this unit in SBN data
  • W*m**-2*Hz**-1
  • W*m**-2*nm**-1
  • W*m**-3
  • W/m**2/Hz
  • W/m**2/nm
  • W/m**3
  • µW/cm**2/µm

Spectral Radiance

  • W*m**-2*sr**-1*Hz**-1
  • W*m**-2*sr**-1*nm**-1
  • W*m**-3*sr**-1
  • W/m**2/sr/Hz
  • W/m**2/sr/nm
  • W/m**2/sr/µm
  • W/m**3/sr
  • µW/cm**2/sr/µm

Storage

  • byte

Temperature

  • K
  • degC

Time

  • day
  • hr
  • julian day
  • microseconds
  • min
  • ms
  • s
  • yr

Velocity

  • cm/s
  • km/s
  • m/s

Voltage

  • V
  • mV

Volume

  • L
  • m**3

Wavenumber

  • 1/cm
  • 1/m
  • 1/nm
  • cm**-1
  • m**-1
  • nm**-1