From tommaso.pino at me.com Tue Dec 7 04:35:54 2021 From: tommaso.pino at me.com (Tommaso Pino) Date: Tue, 07 Dec 2021 12:35:54 -0000 Subject: [Spice_discussion] Producing personal BPC Message-ID: <999e42b6-5805-432c-8ba7-e579c0bb108b@me.com> Hello everyone,For my activity I have to use the IERS EOP (Earth Orientation Pole) data and I would like to produce a pck binary file to fastly handle the transformations between reference frames. The latest algortim used to compute the EOP data are different from the one used by NAIF to produce the earth_high_fidelity pck kernels. I have to work and update the binary kernel everytime the IERS produce a new bulletinA. I have some trouble producing my own BPC, the pck, frame, rotation required readings and relative examples are quite enough if one works with pck in text form. Any one has produced its own binary pck and could give a practical example?Thanks in advance to everyone.BestTommaso -------------- next part -------------- An HTML attachment was scrubbed... URL: From sylvain.guillet at live.com Tue Dec 7 08:56:17 2021 From: sylvain.guillet at live.com (Sylvain Guillet) Date: Tue, 7 Dec 2021 16:56:17 +0000 Subject: [Spice_discussion] Producing personal BPC In-Reply-To: <999e42b6-5805-432c-8ba7-e579c0bb108b@me.com> References: <999e42b6-5805-432c-8ba7-e579c0bb108b@me.com> Message-ID: <66ebff627dd3c38cd35d7f9120b40ea88246984d.camel@live.com> Hello Tommaso, I never transformed PCK text file to binary but you can find some informations here : https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/req/pck.html#Creating%20Binary%20PCKs I hope it can help you. Sylvain On Tue, 2021-12-07 at 12:35 +0000, Tommaso Pino wrote: > Hello everyone, > > For my activity I have to use the IERS EOP (Earth Orientation Pole) > data and I would like to produce a pck binary file to fastly handle the > transformations between reference frames. The latest algortim used to > compute the EOP data are different from the one used by NAIF to produce > the earth_high_fidelity pck kernels. I have to work and update the > binary kernel everytime the IERS produce a new bulletinA. > > I have some trouble producing my own BPC, the pck, frame, rotation > required readings and relative examples are quite enough if one works > with pck in text form. Any one has produced its own binary pck and > could give a practical example? > > Thanks in advance to everyone. > Best > Tommaso > > > From tommaso.pino at me.com Tue Dec 7 13:55:48 2021 From: tommaso.pino at me.com (Tommaso Pino) Date: Tue, 7 Dec 2021 22:55:48 +0100 Subject: [Spice_discussion] Producing personal BPC In-Reply-To: <66ebff627dd3c38cd35d7f9120b40ea88246984d.camel@live.com> References: <66ebff627dd3c38cd35d7f9120b40ea88246984d.camel@live.com> Message-ID: Thank you for replaying. I have already read all requirements guides but I can create a working file. A useful example could be the file used to generate the earth high fidelity ITRF93 provided by NAIF. I do not know where I get wrong: chebyshev coefficients? Angular quantities? Thanks to anyone could help me. Tommaso > Il giorno 7 dic 2021, alle ore 17:56, Sylvain Guillet ha scritto: > > ?Hello Tommaso, > > I never transformed PCK text file to binary but you can find some > informations here : > https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/req/pck.html#Creating%20Binary%20PCKs > > I hope it can help you. > > Sylvain > >> On Tue, 2021-12-07 at 12:35 +0000, Tommaso Pino wrote: >> Hello everyone, >> >> For my activity I have to use the IERS EOP (Earth Orientation Pole) >> data and I would like to produce a pck binary file to fastly handle the >> transformations between reference frames. The latest algortim used to >> compute the EOP data are different from the one used by NAIF to produce >> the earth_high_fidelity pck kernels. I have to work and update the >> binary kernel everytime the IERS produce a new bulletinA. >> >> I have some trouble producing my own BPC, the pck, frame, rotation >> required readings and relative examples are quite enough if one works >> with pck in text form. Any one has produced its own binary pck and >> could give a practical example? >> >> Thanks in advance to everyone. >> Best >> Tommaso >> >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: