>Not so. I use J2000 when reporting positions. >Others may still use 1950. SGP4/SDP4 use the equinox of date which for the next few years is close enough to J2000. Bruno Tilgner ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/sat/seesat/seesatindex.html
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