Am 16.01.2012 23:57, schrieb waldo kitty:
anyway, the format is like this...
*_TLE Epoch Format_*
eg: 12013.93338171
1. there are always 5 digits to the left of the decimal. the first two
digits
are the year of the epoch.
if year<57 then year:=year+2000 else year:=year+1900
in the above, 12
On 1/16/2012 14:49, Sven Barth wrote:
On 16.01.2012 20:06, waldo kitty wrote:
with this TLE epoch number, 12013.93338171, ya feed it like so...
var
JEpoch : double;
DT : TDateTime;
[...]
JEpoch := getJulianDay_SatEpoch(12,013.93338171);
[...]
if TryJulianDateToDateTime(JEpoch,DT) then
writeln(
waldo kitty wrote:
Don't know whether any of this will help
that actually looks very similar to some of my old TP/BP 6/7 time
libraries that i created because there was not much available out there
when i needed it... the one part that hit me the most was that the
fractional days stuff is l
On 16.01.2012 20:06, waldo kitty wrote:
with this TLE epoch number, 12013.93338171, ya feed it like so...
var
JEpoch : double;
DT : TDateTime;
[...]
JEpoch := getJulianDay_SatEpoch(12,013.93338171);
[...]
if TryJulianDateToDateTime(JEpoch,DT) then
writeln(FormatDateTime(' MM DD hh:mm:ss',DT
On 1/16/2012 13:38, Mark Morgan Lloyd wrote:
waldo kitty wrote:
i think i might be able to do something with the JulianToDateTime once i get
the base year portion converted to a true julian... i spotted some C# code
while doing a bit of research earlier (see below)... it appears to convert the
On 1/16/2012 12:54, Ralf A. Quint wrote:
At 09:40 AM 1/16/2012, Sven Barth wrote:
Well... I would say the same as FPC's "floor" routine (
http://www.freepascal.org/docs-html/rtl/math/floor.html ) does ;)
Well... someone might want to check the example for that function ;)
+1
especially sinc
On 1/16/2012 12:40, Sven Barth wrote:
On 16.01.2012 17:57, waldo kitty wrote:
[TRIM]
looks like it should be easy to convert to pascal, too ;) just gotta
find out what that "floor" routine does ;)
Well... I would say the same as FPC's "floor" routine (
http://www.freepascal.org/docs-html/rtl/
waldo kitty wrote:
i think i might be able to do something with the JulianToDateTime once i
get the base year portion converted to a true julian... i spotted some
C# code while doing a bit of research earlier (see below)... it appears
to convert the year to a julian year and then add the decim
At 09:40 AM 1/16/2012, Sven Barth wrote:
Well... I would say the same as FPC's "floor" routine (
http://www.freepascal.org/docs-html/rtl/math/floor.html ) does ;)
Well... someone might want to check the example for that function ;)
Ralf
___
fpc-pa
On 16.01.2012 17:57, waldo kitty wrote:
Especially you can try JulianToDateTime and UnixToDateTime. Both return a
TDateTime which you can convert to a string using FormatDateTime
(
http://www.freepascal.org/docs-html/rtl/sysutils/datetimetostring.html
) or
DateTimeToStr (
http://www.freepascal.or
On 1/16/2012 09:44, edgar jordan wrote:
12 == 2012
013 == 13th day of the year
.9338171 * 24 == 22.4116104 hours
i typoed the above... it should be
.93338171 * 24 == 22.40116104 hours
.4114104 * 60 == 24.696624 minutes
so this becomes
.40116104 * 60 == 24.0696624 minutes
which then leads
On 1/16/2012 06:22, Sven Barth wrote:
Am 16.01.2012 04:10 schrieb "waldo kitty"
>
>
> i'm needing to convert a "UTC epoch" date to a "standard time string"... by
> that, i mean that i want to get something like "2011-01-13 22:24:04" out of
> the "epoch" number 12013.9338171...
TYPO ALERT!
12 == 2012
013 == 13th day of the year
.9338171 * 24 == 22.4116104 hours
.4114104 * 60 == 24.696624 minutes
The decimal portion of hours doesn't match the one multiplied by 60. I just
thought it's the one causing the discrepancy.
___
fpc-pascal maillist
Am 16.01.2012 04:10 schrieb "waldo kitty" :
>
>
> i'm needing to convert a "UTC epoch" date to a "standard time string"...
by that, i mean that i want to get something like "2011-01-13 22:24:04" out
of the "epoch" number 12013.9338171...
>
> the above "epoch" number is (supposedly) built like this.
i'm needing to convert a "UTC epoch" date to a "standard time string"... by
that, i mean that i want to get something like "2011-01-13 22:24:04" out of the
"epoch" number 12013.9338171...
the above "epoch" number is (supposedly) built like this...
12 == 2012
013 == 13th day of the year
.9338
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