Code covered by the BSD License  

Highlights from
MATLAB Versions of NOVAS

  • aberatthis function corrects position vector for aberration of light.
  • anglesthis function converts a vector to angular quantities
  • anmp
  • applangeocentric place of the sun, moon and planets
  • apstarapparent place of a star
  • catranthis function transforms a star's catalog quantities for
  • celpolthis function allows for the specification of celestial pole
  • celterthis function rotates a vector from the celestial to the
  • ciobasthis function returns the orthonormal basis vectors, with
  • ciolocthis function returns the location of the celestial
  • ciotio
  • dlightthis function returns the difference in light-time, for a star,
  • eceqthis function converts an ecliptic position vector to
  • eect2000equation of the equinoxes complementary terms, consistent with
  • eqecthis function converts an equatorial position vector to
  • eqeclthis function converts right ascension and declination
  • eqinox
  • eqxrathis function computes the intermediate right ascension
  • erotthis function returns the value of the earth rotation angle
  • etiltthis function computes quantities related to the orientation
  • etilt1this function computes quantities related to the orientation
  • framethis function transforms a vector from the dynamical reference
  • funargthis function computes fundamental arguments (mean elements)
  • gdateconvert Julian date to Gregorian (calendar) date
  • geocenthis function moves the origin of coordinates from the
  • geoposthis function computes the geocentric position and velocity
  • getdtthis entry returns the current value of delta-t
  • getmodthis function returns the 'mode' value, which
  • grvdthis function corrects position vector for the deflection
  • grvdefthis function computes the total gravitational deflection of
  • hiacc
  • idss_novasthis function returns the id number of a solar system body
  • jd2str(jdate)convert Julian date to string equivalent
  • julianJulian date
  • limangthis function determines the angle of an object above or below
  • littimthis function computes the position of a solar system body,
  • loacc
  • nodthis function returns the values for nutation in longitude and
  • novas_timesthis function computes the terrestrial time (tt) julian date
  • nut2000_lplow precison nutation based on iau 2000a
  • nut2000anutation based on iau 2000a theory
  • nut2000knutation based on the iau 2000k theory
  • nutatethis function nutates equatorial rectangular coordinates from
  • obliq(t)function to compute mean obliquity of the ecliptic in arcseconds
  • placethis function computes the apparent direction of a star or solar
  • precesthis function precesses equatorial rectangular coordinates from
  • propmothis function applies proper motion, including foreshortening
  • radvlthis function predicts the radial velocity of the observed
  • resume
  • setdtthis function allows for the specification of the delta-t value
  • setmodthis function allows the user to specify the 'mode' value,
  • sidtimthis function computes the greenwich sidereal time
  • sidtim1this function computes the greenwich sidereal time
  • solsyspurpose
  • spinthis function transforms a vector from one coordinate system
  • tercelthis function rotates a vector from the terrestrial to the
  • terrathis function computes the position and velocity vectors of
  • times_novasthis function computes the terrestrial time (tt) julian date
  • tpplantopocentric place of the sun, moon or planet
  • tpstartopocentric place of a star
  • vectrsthis function converts angular quantities related to a star's
  • wobblethis function corrects a vector in the itrs (a rotating earth-
  • View all files
Be the first to rate this file! 20 Downloads (last 30 days) File Size: 71.6 KB File ID: #39149 Version: 1.2

MATLAB Versions of NOVAS

by

David Eagle (view profile)

 

27 Nov 2012 (Updated )

Several NOVAS Fortran subroutines have been ported to MATLAB.

| Watch this File

File Information
Description

MATLAB versions of several NOVAS (Naval Observatory Vector Astrometry Software) subroutines. A MATLAB script that demonstrates how to compute sidereal time using these functions is provided. Additional info about NOVAS, including documentation, can be found at www.usno.navy.mil/USNO/astronomical-applications/software-products/novas.

MATLAB release MATLAB 7.12 (R2011a)
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (1)
08 Apr 2015 Michele Belotti

astcon is required and not provided

Comment only
Updates
07 Jan 2013 1.1

Added additional NOVAS-based MATLAB functions to the novas.zip archive.

04 Feb 2013 1.2

Added new functions; apstar, tpstar, applan, tpplan, place, etc.

Contact us