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VSOP2013.NET
  • VSOP2013.NET
    • Quick Start
    • Change Logs
    • Requirements
  • VSOP2013
    • Original Readme
      • Introduction
      • Files Description
      • Terms of Series
      • Record Organization
        • Header Records
        • Terms Records
      • Time Scale and Reference System
      • Precision of the Series VSOP2013
      • Computation
      • Truncation of the Series
    • VSOP2013.f
    • VSOP2013.ctl
    • VSOP2013-secular.dat
  • API Reference
    • VSOP2013 Namespace
      • Calculator Class
        • GetVariable
        • GetVariableAsync
        • GetPlanetPosition
        • GetPlanetPositionAsync
      • Utility Class
        • MultiplyMatrix
        • XYZtoLBR
        • LBRtoXYZ
        • ELLtoXYZ
        • ELLtoLBR
        • DynamicaltoICRS
        • ICRStoDynamical
      • VSOPResult Class
        • VSOPResult_ELL Class
        • VSOPResult_XYZ Class
        • VSOPResult_LBR Class
      • VSOPTime Class
      • Data Structs
      • Enums
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  1. VSOP2013
  2. Original Readme
  3. Record Organization

Header Records

Fortran Format:

read (ifile,1001) ip,iv,it,nt

1001 format (9x,3i3,i7)

Specifications:

  • ip : planete index (integer)

  • iv : variable index (integer)

  • it : time power a (integer)

  • nt : number of terms in series (integer)

Planet index (ip):

  1. Mercury

  2. Venus

  3. Earth-Moon Barycenter

  4. Mars

  5. Jupiter

  6. Saturn

  7. Uranus

  8. Neptune

  9. Pluto

Variable index (iv):

  1. a = semi-major axis (ua)

  2. l = mean longitude (radian)

  3. k = e cos ω

  4. h = e sin ω

  5. q = sin(i/2) cos Ω

  6. p = sin(i/2) sin Ω

Time power α (it):

  • it=0 : Periodic terms

  • it>0 : Poisson terms

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Last updated 1 year ago