laplace3(1) --- Imcat Users Guide --- section: imcattools_orbits --- last changed: Sun Apr 13 HST
laplace3 - compute an approximate orbit from 3 observationsSYNOPSIS
laplace3DESCRIPTION
laplace3 reads an lc format catalog (probably generated by makeobs) from stdin. This calatog must contain 3 lines, each containing at least: t time sigma astrometry precision in radians re[] earth's position ve[] earth's velocity rho[] position of observatory vs earth ra[] asteroid's position va[] asteroid's velocity
It then solves for the phase space coordinates of the asteroid at t=0. Currently it does this graphically. Times are given in units of earths dynamical time (approx 57.21 days in this model). Distances are expressed in AU. SEE ALSOmaketestpscoordspl(1), makeobs(1).
AUTHOR
Nick Kaiser --- kaiser@hawaii.edu