AssistNow API (1.0.4)

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AssistNow API

AssistNow data

AssistNow data includes almanac and orbit predictions in MGA-ANO messages, as well as broadcast orbits, ionospheric parameters, clock parameters and other advanced aiding information.
Example Request URL:
https://assistnow.services.u-blox.com/GetAssistNowData.ashx?chipcode=XXXXXXXXXXXXXXXXXXXXXXXXXXXX&data=ualm,uporb_1,ulorb_l1,utime,ukion,usvht&gnss=gps,gal,glo,bds,qzss&filteronpos&lat=52.0&lon=10&pacc=300000

query Parameters

chipcode required	string Base64 encoded uniqueId:<8-char-secrect>. Device registration is required.
data required	string Enum: "ualm" "uporb_1" "uporb_3" "uporb_7" "uporb_14" "ulorb_l1" "utime" "ukion" "usvht" "filteronpos" "lat" "lon" "alt" "pacc" Types of AssistNow data. ualm: Almanac uporb_1: Orbit prediction for 1 day uporb_3: Orbit prediction for 3 day uporb_7: Orbit prediction for 7 day uporb_14: Orbit prediction for 14 day ulorb_l1: Live broadcast ephemeris on L1 frequency. UBX-MGA-INI_TIME is always added in the beginning of the ephemeris assistance data. utime: Time model aiding data. It consists of both UTC parameters and the inter-GNSS time offset parameters. ukion: Klobuchar ionospheric parameters. Note that Klobuchar Ionospheric parameters are only available for GPS and BDS. usvht: Real-time satellite health information from monitoring stations.
gnss required	string Enum: "gps" "gal" "glo" "bds" "qzss" Constellations
filteronpos	string Default: "" No value required. If present, the live broadcast ephemeris returned will only contain data for the satellites which are likely to be visible from the approximate position provided (see lat, lon, alt and pacc parameters). Lat and lon must be provided for filteronpos.
lat	number <float> [ -90 .. 90 ] Approximate user latitude in WGS84 in units of degrees and fractional degrees
lon	number <float> [ -180 .. 180 ] Approximate user longitude in WGS84 in units of degrees and fractional degrees
alt	number <float> [ -1000 .. 50000 ] Default: 0 Approximate user altitude above WGS84 ellipsoid in units of meters
pacc	number <float> [ 0 .. 6000000 ] Default: 300000 Approximate accuracy of the submitted position in units of meters

Responses

Response samples

Content type

application/octet-stream

Binary file data (not viewable in text format)