The Basics The Two-Body Problem Coordinate Systems and Time Systems Corrections to Coordinates Odds and Ends Other Soluble Problems Laplacian-Type Initial Orbit Determination Gaussian-Type Initial… Expand

Using data from Hubble Space Telescope observations, we report the first optical measurement of the annual parallax of a neutron star. This is the counterpart of the X-ray/γ-ray pulsar Geminga, for… Expand

The classical methods of initial orbit determination are brought together within a larger viewpoint. This new synthesis stresses that all such techniques follow one of three approaches. Either they… Expand

A new estimation principle is presented that is designed to deal with both types of errors and allows one to make predictions regarding the "observability" of various aspects of the kinematic state of the target.Expand

The M dwarf star L722-22 (LHS 1047, GJ 1005) was discovered to be a binary in 1979. Analysis of ground-based data indicated a mass near 0.06 M⊙ for the secondary star, well below the nominal stellar… Expand

This paper presents the results of the photometric calibration of the F538W filter in astrometer Fine Guidance Sensor on the Hubble Space Telescope. Dozens of observations of the 99.m58 Fine Guidance… Expand

This work attacks Kepler's equation with the unified derivation of all known bounds and several starting values, a proof of the optimality of these bounds, a very thorough numerical exploration of a large variety of starting values and solution techniques, and finally the best and simplest starting value/solution algorithm: M + e and Wegstein's secant modification of the method of successive substitutions.Expand