# assert(16);
alias mars.fcmonth = marsForecastMonth;
alias mars.number  = perturbationNumber;
alias mars.origin  = centre;
alias mars.method  = methodNumber;

unalias mars.step;

if (class is "od") { alias mars.system = systemNumber; }
if (class is "me") { alias mars.system = systemNumber; }
if (class is "en") { alias mars.system = systemNumber; }
