9 lines
22 KiB
JavaScript
9 lines
22 KiB
JavaScript
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/*!
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* satellite-js v5.0.0
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* (c) 2013 Shashwat Kandadai and UCSC
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* https://github.com/shashwatak/satellite-js
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* License: MIT
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*/
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!function(o,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(o="undefined"!=typeof globalThis?globalThis:o||self).satellite=t()}(this,(function(){"use strict";var o=Math.PI,t=2*o,e=o/180,s=180/o,a=1440,n=398600.8,d=6378.135,r=60/Math.sqrt(650942.9922085947),i=d*r/60,c=1/r,h=.001082616,m=-253881e-11,l=-165597e-11,p=m/h,x=2/3;function g(o,t){for(var e=[31,o%4==0?29:28,31,30,31,30,31,31,30,31,30,31],s=Math.floor(t),a=1,n=0;s>n+e[a-1]&&a<12;)n+=e[a-1],a+=1;var d=a,r=s-n,i=24*(t-s),c=Math.floor(i);i=60*(i-c);var h=Math.floor(i);return{mon:d,day:r,hr:c,minute:h,sec:60*(i-h)}}function M(o,t,e,s,a,n){var d=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0;return 367*o-Math.floor(7*(o+Math.floor((t+9)/12))*.25)+Math.floor(275*t/9)+e+1721013.5+((d/6e4+n/60+a)/60+s)/24}function f(o,t,e,s,a,n,d){if(o instanceof Date){var r=o;return M(r.getUTCFullYear(),r.getUTCMonth()+1,r.getUTCDate(),r.getUTCHours(),r.getUTCMinutes(),r.getUTCSeconds(),r.getUTCMilliseconds())}return M(o,t,e,s,a,n,d)}function u(e,s){var a,n,d,r,i,c,h,m,l,p,x,g,M,f,u,z,v,y,b=e.e3,q=e.ee2,w=e.peo,T=e.pgho,j=e.pho,E=e.pinco,F=e.plo,A=e.se2,C=e.se3,L=e.sgh2,S=e.sgh3,U=e.sgh4,D=e.sh2,I=e.sh3,R=e.si2,_=e.si3,k=e.sl2,O=e.sl3,P=e.sl4,Z=e.t,G=e.xgh2,H=e.xgh3,Y=e.xgh4,$=e.xh2,B=e.xh3,J=e.xi2,K=e.xi3,N=e.xl2,Q=e.xl3,V=e.xl4,W=e.zmol,X=e.zmos,oo=s.init,to=s.opsmode,eo=s.ep,so=s.inclp,ao=s.nodep,no=s.argpp,ro=s.mp;y=X+119459e-10*Z,"y"===oo&&(y=X),v=y+.0335*Math.sin(y);var io=A*(h=.5*(f=Math.sin(v))*f-.25)+C*(m=-.5*f*Math.cos(v)),co=R*h+_*m,ho=k*h+O*m+P*f,mo=L*h+S*m+U*f,lo=D*h+I*m;return y=W+.00015835218*Z,"y"===oo&&(y=W),v=y+.1098*Math.sin(y),l=io+(q*(h=.5*(f=Math.sin(v))*f-.25)+b*(m=-.5*f*Math.cos(v))),g=co+(J*h+K*m),M=ho+(N*h+Q*m+V*f),p=mo+(G*h+H*m+Y*f),x=lo+($*h+B*m),"n"===oo&&(M-=F,p-=T,x-=j,so+=g-=E,eo+=l-=w,r=Math.sin(so),d=Math.cos(so),so>=.2?(no+=p-=d*(x/=r),ao+=x,ro+=M):(a=r*(c=Math.sin(ao)),n=r*(i=Math.cos(ao)),a+=x*i+g*d*c,n+=-x*c+g*d*i,(ao%=t)<0&&"a"===to&&(ao+=t),u=ro+no+d*ao,u+=M+p-g*ao*r,z=ao,(ao=Math.atan2(a,n))<0&&"a"===to&&(ao+=t),Math.abs(z-ao)>o&&(ao<z?ao+=t:ao-=t),no=u-(ro+=M)-d*ao)),{ep:eo,inclp:so,nodep:ao,argpp:no,mp:ro}}function z(o){var s=(o-2451545)/36525,a=-62e-7*s*s*s+.093104*s*s+3164400184.812866*s+67310.54841;return(a=a*e/240%t)<0&&(a+=t),a}function v(){return(arguments.length<=0?void 0:arguments[0])instanceof Date||arguments.length>1?z(f.apply(void 0,arguments)):z.apply(void 0,arguments)}function y(e,s){var a,n,c,m,l,g,M,f,z,v,y,b,q,w,T,j,E,F,A,C,L,S,U,D,I,R;e.t=s,e.error=0;var _=e.mo+e.mdot*e.t,k=e.argpo+e.argpdot*e.t,O=e.nodeo+e.nodedot*e.t;f=k,C=_;var P=e.t*e.t;if(S=O+e.nodecf*P,j=1-e.cc1*e.t,E=e.bstar*e.cc4*e.t,F=e.t2cof*P,1!==e.isimp){g=e.omgcof*e.t;var Z=1+e.eta*Math.cos(_);C=_+(T=g+e.xmcof*(Z*Z*Z-e.delmo)),f=k-T,b=(y=P*e.t)*e.t,j=j-e.d2*P-e.d3*y-e.d4*b,E+=e.bstar*e.cc5*(Math.sin(C)-e.sinmao),F=F+e.t3cof*y+b*(e.t4cof+e.t*e.t5cof)}L=e.no;var G=e.ecco;if(A=e.inclo,"d"===e.method){q=e.t;var H=function(o){var e,s,a,n,d,r,i,c,h=o.irez,m=o.d2201,l=o.d2211,p=o.d3210,x=o.d3222,g=o.d4410,M=o.d4422,f=o.d5220,u=o.d5232,z=o.d5421,v=o.d5433,y=o.dedt,b=o.del1,q=o.del2,w=o.del3,T=o.didt,j=o.dmdt,E=o.dnodt,F=o.domdt,A=o.argpo,C=o.argpdot,L=o.t,S=o.tc,U=o.gsto,D=o.xfact,I=o.xlamo,R=o.no,_=o.atime,k=o.em,O=o.argpm,P=o.inclm,Z=o.xli,G=o.mm,H=o.xni,Y=o.nodem,$=o.nm,B=.13130908,J=2.8843198,K=.37448087,N=5.7686396,Q=.95240898,V=1.8014998,W=1.050833,X=4.4108898,oo=259200,to=0,eo=0,so=(U+.0043752690880113*S)%t;if(k+=y*L,P+=T*L,O+=F*L,Y+=E*L,G+=j*L,0!==h){(0===_||L*_<=0||Math.abs(L)<Math.abs(_))&&(_=0,H=R,Z=I),e=L>0?720:-720;for(var ao=381;381===ao;)2!==h?(i=b*Math.sin(Z-B)+q*Math.sin(2*(Z-J))+w*Math.sin(3*(Z-K)),d=H+D,r=b*Math.cos(Z-B)+2*q*Math.cos(2*(Z-J))+3*w*Math.cos(3*(Z-K)),r*=d):(a=(c=A+C*_)+c,s=Z+Z,i=m*Math.sin(a+Z-N)+l*Math.sin(Z-N)+p*Math.sin(c+Z-Q)+x*Math.sin(-c+Z-Q)+g*Math.sin(a+s-V)+M*Math.sin(s-V)+f*Math.sin(c+Z-W)+u*Math.sin(-c+Z-W)+z*Math.sin(c+s-X)+v*Math.sin(-c+s-X),d=H+D,r=m*Math.cos(a+Z-N)+l*Math.cos(Z-N)+p*Math.cos(c+Z-Q)+x*Math.cos(-c+Z-Q)+f*Math.cos(c+Z-W)+u*Math
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