Re: [amsat-bb] WiSP32 keps problem

[Roy Welch <rdwelch@xxxxxxxxxx>]

Hi Chris,

Chris Hill wrote:
> 
> Hi Roy,
> 
> Can you please confirm that when you change the epoch year and day values,
> you also have to change the checksum digit at the end of the line.

No you do not, blanks and zeroes carry the same checksum value. 

> If not, then this would suggest that WiSP doesn't perform a checksum test
> to catch corrupt data.

Not so. 

> If the checksum does need changing, do you have an automated way of doing
> this?  I have a program here which is ready to roll if you need it.

Doesn't need changing.
 
> 73 Chris vk6kch
> 
> At 18:28 2000/01/01 +0000, you wrote:
> >Hi Guys,
> >
> >Well after trying several different ways to get the 2000 epoch keps to work
> >in WiSP32, I agree with Assi Friedman that the only way it can be done is
> >to change the epoch year/day value to 99365 plus the epoch day number from
> >the 2000 keps.  For example NOAA-11 has an epoch year/day value of 00009 in
> >the latest keps.  This has to be changed to 99374 (365+9) and will track
> >accurately.  I suggest you edit the keplerian data file directly before you
> >use the Database Update function in WiSP.  If you edit this data with the
> >WiSP Edit Database function be sure to leave a blank between the year and
> >day values, such as 99 374 in the above example.  Chris has been notified.
> >
> >--
> >73, Roy
> >
> 
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-- 
73, Roy

Internet: w0sl@amsat.org
Home Page: http://home.swbell.net/rdwelch
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