Hobby Projects:

Geoff

KIWI OSD - Video overlay of precision  timestamps, using GPS with 1PPS

KIWI - Millisecond accurate timestamp utility, using a PC and GPS with 1PPS

TLOG and MLOG  -  Using a PC as a Logging Thermometer

GPS_SKY  -  map your GPS Horizon software

GPS  Almanac to Orbital Position software

GPS  Almanac to TLE software

55 Thousand NZ place names in GPX format

Using "Hat Size" to find the Speed of Light

NZ Aviation VRP's in GPX format

GPS, Time Metrology, Software development

Mapping Asteroid Shadow Paths