[TUHS] [OT] azel - was Re: In Memoriam: J.F.Ossanna

Toby Thain toby at telegraphics.com.au
Fri Nov 30 06:11:30 AEST 2018

On 2018-11-29 1:04 PM, Ken Thompson wrote:
> its name became astro and it is on the old backup tapes.
> written in c. it has old elements for everything. published


Was it rewritten? Your story has it dating at least back to 1966, which
made me think it might not have been C.


> elements are now in a different form and a different time
> base, so it needs updating to bring it into the 21st century.
> if all you want is the earth, moon, and sun, then it might
> be ok. the earth rotation fudge (delta-t) might need to be
> re-estimated to get second accuracy.
> On Thu, Nov 29, 2018 at 9:54 AM, Toby Thain <toby at telegraphics.com.au> wrote:
>> On 2018-11-27 11:48 PM, Ken Thompson via TUHS wrote:
>>> ...
>>> a version of azel was maintained all the time
>>> i was at bell labs.
>> As soon as I read this it's been on my mind to ask: Does this program
>> survive? Presumably it was Fortran? What did it run on?
>> --Toby

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