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asteRisk (version 1.4.4)

Computation of Satellite Position

Description

Provides basic functionalities to calculate the position of satellites given a known state vector. The package includes implementations of the SGP4 and SDP4 simplified perturbation models to propagate orbital state vectors, as well as utilities to read TLE files and convert coordinates between different frames of reference. Several of the functionalities of the package (including the high-precision numerical orbit propagator) require the coefficients and data included in the 'asteRiskData' package, available in a 'drat' repository. To install this data package, run 'install.packages("asteRiskData", repos="https://rafael-ayala.github.io/drat/")'. Felix R. Hoots, Ronald L. Roehrich and T.S. Kelso (1988) . David Vallado, Paul Crawford, Richard Hujsak and T.S. Kelso (2012) . Felix R. Hoots, Paul W. Schumacher Jr. and Robert A. Glover (2014) .

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Version

Install

install.packages('asteRisk')

Monthly Downloads

423

Version

1.4.4

License

GPL-3

Maintainer

Rafael Ayala

Last Published

August 20th, 2025

Functions in asteRisk (1.4.4)

TEMEtoLATLON

Convert coordinates from TEME to geodetic latitude, longitude and altitude
deg2rad

Converts an angle in degrees to radians
evaluateSPKSegment

Evaluate a given SPK segment
TEMEtoITRF

Convert coordinates from TEME to ITRF
dateTimeToMJD

Calculate Modified Julian Date for a given date and time
calculateRazel

Calculates azimuth, elevation and range of a given object
hpop

High-precision numerical orbital propagator
listAvailablePlanetaryEphemerides

List Available Planetary Ephemerides Files
getLatestSpaceData

Retrieves the latest space data
lambert

Solve Lambert's problem to determine a transfer orbit
parseTLElines

Parse the lines of a TLE
readGLONASSNavigationRINEX

Read a RINEX navigation file for GLONASS satellites
readGPSNavigationRINEX

Read a RINEX navigation file for GPS satellites
rad2deg

Converts an angle in radians to degrees
registerPlanetaryEphemerides

Register a Planetary Ephemerides File
readTLE

Read a TLE file
readBinSPK

Read a binary SPK file
revDay2radMin

Converts revolutions per day to radians per minute
readOEM

Read an Orbital Ephemeris Message file
readBinDAF

Read a generic binary DAF file
sdp4

Propagate an orbital state vector with the SDP4 model
sgdp4

Propagate an orbital state vector with the SGP4/SDP4 model
sgp4

Propagate an orbital state vector with the SGP4 model
ITRFtoGCRF

Convert coordinates from ITRF to GCRF
LATLONtoITRF

Convert coordinates from geodetic latitude, longitude and altitude to ITRF
KOEtoBCI

Calculate BCI coordinates from Keplerian orbital elements
GCRFtoLATLON

Convert coordinates from GCRF to geodetic latitude, longitude and altitude
LATLONtoGCRF

Convert coordinates from geodetic latitude, longitude and altitude to GCRF
TEMEtoGCRF

Convert coordinates from TEME to GCRF
JPLephemerides

Calculate JPL main celestial objects ephemerides for a given Modified Julian Date
ITRFtoLATLON

Convert coordinates from ITRF to geodetic latitude, longitude and altitude
GCRFtoITRF

Convert coordinates from GCRF to ITRF
BCItoKOE

Calculate Keplerian orbital elements from BCI coordinates