Re: ITL Prayer Time

[abdulhaq <al-arabeyes at alinsyria dot fsnet dot co dot uk>]

Thanks for the prompt reply and I look forward to the results and 
incorporating the final version in my program,

جزاك الله خيراً
و السلام

abdulhaq


On Saturday 05 June 2004 07:19, Thamer Mahmoud wrote:

> abdulhaq writes:
>  > Thamer, the new changes sound great, but I still have some concerns
>  > (please be patient with me).
>
> This is just a quick replay. I will be returning to this topic, after
> the coding is done, with more info and testing results. (I will be
> busy for most of next week, so I can't really say when will that
> happen)
>
> [snipped]
>
>  > However, I'd still like to put my mind to rest in this important
>  > matter. The yanabi website claims to have times accurate to +- 2
>  > seconds, and also seems to very closely conform to the libnova
>  > generated data. I can't find any mention of marsbase.net claiming to
>  > use VSOP87 in its calculation.
>
> It's mentioned here (bottom left)
> http://www.marsbase.net/m/sunrise-sunset-marsrise-marsset.php
>
>  > My point is that our times (ITL, abdali etc) are varying, as you
>  > point out, by minutes and yet it seems as if it is possible to
>  > calculate the time to the nearest two seconds.
>  >
>  > The yanabi website only gives its answers to the nearest minute, which
>  > is rounded up for maghrib and down for shuruq. Also, dhuhr time is
>  > adjusted for the full disc of the sun to move off the highest point.
>  > This explains the discrepancy you found between libnova and yanabi for
>  > instance.
>
> I'm aware of this and I did not mention yanabi. In fact, I did not
> test neither yanabi nor libnova. I've mentioned libnova and marsbase
> results based on your own findings in an older post. There might be
> logical reasons that explains why marsbase and libnova are producing
> different results. I do not know and I certainly did not do any
> testing/reading of both tools to figure out why this is actually
> happening.
>
> Of course, there is still a good chance that we might end up with the
> same exact results as libnova (or marsbase ;), I'm not sure for now. I
> will post more info on this as I start testing the new code.
>
> Regards,
> Thamer Mahmoud
>
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