Re: ITL library & kprayertime

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

jazaakallaahu khairan, I'll download the latest and greatest.

The library is excellent and makes a big improvement to kprayertime. In shaa' 
allaah I'll finish the integration over the next couple of weeks (relating to 
summer time and things like that).

wassalaam
abdulhaq
PS is ITL rounding the minutes up or down? I saw a cast to (int) which would 
indicate a rounding down. If so, can I suggest that you round up for all 
times except shuruq?

On Saturday 01 May 2004 12:20, Thamer Mahmoud wrote:
> abdulhaq writes:
>  > salaam
>  >
>  > a few times harvested off the internet for 52.6432   -1.1.0333
>  >
>  > http://www.marsbase.net/m/sunrise-sunset-marsrise-marsset.php
>  >
>  > 5:36 13:01 20:26 using VSOP87
>  >
>  > http://www.yanabi.com/praytimes/
>  >
>  > 5:35 13:03 20:29 using VSOP87 and Dhuhr/Maghrib has been adjusted so
>  > that the entire disc of the sun has moved off the noon/sunset position
>  >
>  > ITL
>  >
>  > 5:37 13:01 20:25
>  >
>  > Abdali
>  >
>  > 5:36 13:02 20:28
>  >
>  > What I think is worth stressing is that shuruq must not be too late and
>  > maghrib must not be too early.
>  >
>  > wassalaam
>  > abdulhaq
>
> Salaam,
>
> I have taken another look at this. It seems that some of the
> values/astronomical equations used were not accurate enough. I did
> some testing last year but since the problem is more visible on leap
> years, like this year, I did not notice this until now. This is now
> fixed on CVS. Thanks for your excellent feedback.
>
> Just to summarize your findings and to also add the fixed ITL results,
> Here are the times again for 20040429:
>
> 5:35   13:01   20:28  libnova
> 5:35   13:03   20:29  yanabi.com
> 5:36   13:02   20:28  Abdali
> 5:36   13:01   20:26  marsbase.net
> 5:37   13:01   20:25  ITL
> 5:35   13:01   20:27  ITL-CVS
>
> Of course these are not the perpetual amounts of difference. These
> differences of minutes vary (up or down) through the year based on the
> equations used as well as the other factor's that I've previously
> mentioned on another post. I guess what I'm trying to say is that
> there will always be differences either below or above any of these
> tools on any given day.
>
> For example, if someone is concerned of Maghrib being one minute early
> on the ITL-CVS and late on hdate (from the list above), the reverse
> does happen. Here is a list of Sunrise/Sunset times of 20041103 on
> some of these tools:
>
> 7:04	11:47	16:30  marsbase.net
> 7:04	11:49	16:31  yanabi.com
> 7:05    11:48   16:31  ITL-CVS
> 7:05    11:48   16:30  Abdali (hdate)
>
>
> Regards,
> Thamer Mahmoud
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