Function dscom

procedure dscom

this procedure provides deep space common items used by both the secular and periodics subroutines. input is provided as shown. this routine used to be called dpper, but the functions inside weren't well organized.

author : david vallado 719-573-2600 28 jun 2005

inputs : epoch - ep - eccentricity argpp - argument of perigee tc - inclp - inclination nodep - right ascension of ascending node np - mean motion

outputs : sinim , cosim , sinomm , cosomm , snodm , cnodm day - e3 - ee2 - em - eccentricity emsq - eccentricity squared gam - peo - pgho - pho - pinco - plo - rtemsq - se2, se3 - sgh2, sgh3, sgh4 - sh2, sh3, si2, si3, sl2, sl3, sl4 - s1, s2, s3, s4, s5, s6, s7 - ss1, ss2, ss3, ss4, ss5, ss6, ss7, sz1, sz2, sz3 - sz11, sz12, sz13, sz21, sz22, sz23, sz31, sz32, sz33 - xgh2, xgh3, xgh4, xh2, xh3, xi2, xi3, xl2, xl3, xl4 - nm - mean motion z1, z2, z3, z11, z12, z13, z21, z22, z23, z31, z32, z33 - zmol - zmos -

locals : a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 - betasq - cc - ctem, stem - x1, x2, x3, x4, x5, x6, x7, x8 - xnodce - xnoi - zcosg , zsing , zcosgl , zsingl , zcosh , zsinh , zcoshl , zsinhl , zcosi , zsini , zcosil , zsinil , zx - zy -

coupling : none.

references : hoots, roehrich, norad spacetrack report #3 1980 hoots, norad spacetrack report #6 1986 hoots, schumacher and glover 2004 vallado, crawford, hujsak, kelso 2006