Cococubed.com Ephemeris
Home Astronomy research Software instruments    Stellar equation of states    EOS with ionization    EOS for supernovae    Chemical potentials    Stellar atmospheres    Voigt Function    Jeans escape    Polytropic stars    Cold white dwarfs    Adiabatic white dwarfs    Cold neutron stars    Stellar opacities    Neutrino energy loss rates    Ephemeris routines    Fermi-Dirac functions    Polyhedra volume    Plane - cube intersection    Coating an ellipsoid    Nuclear reaction networks    Nuclear statistical equilibrium    Laminar deflagrations    CJ detonations    ZND detonations    Fitting to conic sections    Unusual linear algebra    Derivatives on uneven grids    Pentadiagonal solver    Quadratics, Cubics, Quartics    Supernova light curves    Exact Riemann solutions    1D PPM hydrodynamics    Hydrodynamic test cases    Galactic chemical evolution    Universal two-body problem    Circular and elliptical 3 body    The pendulum    Phyllotaxis    MESA    MESA-Web    FLASH    Zingale's software    Brown's dStar    GR1D code    Iliadis' STARLIB database    Herwig's NuGRID    Meyer's NetNuc Presentations Illustrations cococubed YouTube Bicycle adventures Public Outreach Education materials 2023 ASU Solar Systems Astronomy 2023 ASU Energy in Everyday Life AAS Journals AAS YouTube 2023 MESA VI 2023 MESA Marketplace 2023 MESA Classroom 2022 Earendel, A Highly Magnified Star 2022 White Dwarfs & 12C(α,γ)16O 2022 Black Hole Mass Spectrum 2022 MESA in Don't Look Up 2021 Bill Paxton, Tinsley Prize Contact: F.X.Timmes my one page vitae, full vitae, research statement, and teaching statement.	The instrument public_ephem.tbz computes the state vectors for the major bodies of the solar system, two martian satellites, four Galilean satellites, eight of Saturn's moons, six Uranian moons, thousands of comets, and half a million asteroids. The tool combines the JPL DE430 ephemeris, JPL osculatory orbital elements, and the Naval Observatory NOVAS positional astronomy package. The results thus compare favorably with those from JPL Horizons. A brief guide is in this README. Xephem by Elwood Downey is excellent, open, and is a lot of fun. Starry Night is not free or open, but visually yummy. public_ephem.tbz contains seven data files: ☊ unxp1950-2050.430 - JPL DE430 little-endian binary file for the major bodies in the solar system from 1950 to 2050. Most fortran compilers can convert to big-endian on-the-fly if desired, or visit JPL to roll your own binary files. ☊ comet_elements.dat - JPL osculatory orbital elements for comets. Current as of 25Sep2019; get updated versions from the JPL small-body database. ☊ numasteroids_elements.dat - JPL osculatory orbital elements for asteroids. Current as of 25Sep2019; get updated versions from the JPL small-body database. ☊ ephem.e15 - J2000 parameters for the Galilean satellites; from Jay Lieske's article. ☊ redtass7.dat - time series arguments for eight of saturn's satellites; from BDL. ☊ leap_second.dat - (TAI - UTC) timescale offsets; get updated versions from IERS or IERS. ☊ deltat.dat - (TT - UT1) timescale offsets; get updated versions from IERS or IERS. public_ephem.tbz contains twelve library files: ☊ novas_routines.f90 -a semi-custom USNO NOVAS. ☊ jpl_routines.f90 - read and interpolate JPL ephemeris files. ☊ position_routine.f90 - returns the state vector. ☊ ephem.dek - common block communications. ☊ initialize_routine.f90 - initializations. ☊ fxt_routines.f90 - state vectors to orbital elements and more. ☊ marsat_routines.f90 - state vectors of the martian satellites. ☊ lieske_routines.f90 - state vectors of the jovian satellites. ☊ satsat_routines.f90 - state vectors of saturn's satellites. ☊ gust86_routines.f90 - state vectors of the uranian satellites. ☊ glue.f90 - string parsers, converters, and more. public_ephem.tbz contains 14 applications: ☊ analemma.f90 - position of the sun to make an analemma. ☊ conjunction.f90 - conjunctions, quadratures, and more. ☊ ephem.f90 - combines several of the applications. ☊ equinox.f90 - times of equinoxes and solstices. ☊ moon_phases.f90 - lunar events including eclipses. ☊ orbit.f90 - state vectors over time. ☊ perihelion.f90 - times of apheleions and periheleions. ☊ position.f90 - state vectors in different coordinate systems. ☊ retrograde.f90 - times of retrograde motion. ☊ rise.f90 - rise, transit, and set time of any object. ☊ solar_eclipse.f90 - track of a solar eclipse centerline. ☊ sunrise.f90 - quicky rise, transit and set of the sun and moon. ☊ sunrise_over_year.f90 - the sun over a year. ☊ within.f90 - times of objects within a given angular seperation.
	Please cite the relevant references if you publish a piece of work that use these codes, pieces of these codes, or modified versions of them. Offer co-authorship as appropriate.