Re: GJD to HJD

[Michael Koppelman <lolife@bitstream.net>]

I'd appreciate if someone could double-check my calculation. As I stated, 
it is based on the same code as the SLA library, so it should be spot on, 
but I did have to do a few date manipulation things and I'd appreciate a 
double-check. Here are two examples:

digital [10:47pm] % ./jd2hjd 2452425.6907291 179.470833 6.375277
correction is 0.001791
digital [10:41pm] % ./jd2hjd 2452431.6260590 179.470833 6.375277
correction is 0.001234

The arguments above are jd, ra and dec.

This matches within 4 seconds of Lew Cook's spread sheet. He claims 
accuracy near 3 seconds. Can anyone check this with something known to be 
perfect?

Thanks!
Michael Koppelman