DESPATCH API Reference

/despatch/track

Get tracking data at a specific time.

Parameters

NameDescription
time
Datetime in Unix Time

example:
  • time=1417436200
lat
Latitude of an observer (degree)
example:
  • lat=35.610603
lon
Longitude of an observer (degree)
example:
  • lon=139.351124
alt
Altitude of an observer (meter)
example:
  • alt=148

Formats

ExtensionType
.jsonJSON
.csvCSV

Results

NameDescription
time
Requested datetime
elevation
Elevation (degree)
azimuth
Azimuth (degree)
doppler_down
Downlink doppler ratio
doppler_up
Uplink doppler ratio
distanceDistance from the observer (meter)
declinationDeclination (degree)
right_ascensionRight Ascension (degree)
phaseOperation phase

Example

http://api.artsat.jp/despatch/track.json?time=1417436200&lat=35.610603&lon=139.351124&alt=148

/despatch/track_range

Get tracking data during a period.

Parameters

NameDescription
beginThe start datetime of the period in Unix Time
example:
  • begin=1417436200
endThe end datetime of the period in Unix Time
example:
  • end=1417437200
interval
Interval of the period (second)
example:
  • interval=100
lat
Latitude of an observer (degree)
example:
  • lat=35.610603
lon
Longitude of an observer (degree)
example:
  • lon=139.351124
alt
Altitude of an observer (meter)
example:
  • alt=148

Formats

ExtensionType
.jsonJSON
.csvCSV

Results

NameDescription
time
Requested datetime
elevation
Elevation (degree)
azimuth
Azimuth (degree)
doppler_down
Downlink doppler ratio
doppler_up
Uplink doppler ratio
distanceDistance from the observer (meter)
declinationDeclination (degree)
right_ascensionRight Ascension (degree)
phaseOperation phase

Example

http://api.artsat.jp/despatch/track_range.json?begin=1417436200&end=1417437200&interval=100&lat=35.610603&lon=139.351124&alt=148
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