Cococubed.com Ephemeris
Home Astronomy Research    Radiative Opacity    2024 Neutrino Emission from Stars    2023 White Dwarfs & 12C(α,γ)16O    2023 MESA VI    2022 Earendel, A Highly Magnified Star    2022 Black Hole Mass Spectrum    2021 Skye Equation of State    2021 White Dwarf Pulsations & 22Ne    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 AAS Journals    2024 AAS YouTube    2024 AAS Peer Review Workshops 2024 ASU Energy in Everyday Life 2024 MESA Classroom Outreach and Education Materials Other Stuff:    Bicycle Adventures    Illustrations    Presentations 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.