Problems using files jpl: DE406 and DE431

[blucobalto]

Hi, I think there is a problem using the files jpl: DE406 and DE431. The results are not correct.

I have tested the results jpl using this: 1) SweWin.exe (swissEph); 2) http://www.astro.com/swisseph/swetest.htm and comparing them with SweWin.exe (SwissEphNet).

Thanks a lot, blu

[ygrenier]

Hi,

Could you indicate some values for testing it's more easy for me.

Thanks,

Yanos

[blucobalto]

Hi, for the test: 1) Run Swewin.exe (SwissEphNet). 2) Leave the default data; 3) Select "Swiss Eph"; 4) Run. 5) All ok; 6) Select "DE406"; 7) Run.

The values ​​do not change. I expect, however, that the values ​​of the last decimal places are changed. I tested the problem with SweWin.exe (SwissEph). In this case the last decimal places change.

Thanks a lot, Antonio

[ygrenier]

Hi,

I can't reproduce the issue ! I have the same behavior between the two applications.

Perhaps it's a problem with the ephemeris path that I just correct (a few minutes).

Now the application search the ephemeris files in "c:\sweph\ephe" path like original application.

Try this.

Thanks.

Yanos

[blucobalto]

Hi, I downloaded the latest version from Github. I use the default path: "c:\sweph\ephe".

I have two problems with SweWin.exe (SwissEphNet): 1) If I choose "Moshier" or "Swiss Eph" or "DE406" I always get the same results. I expect that the last decimal places are different.

2) I tried to debug with the parameter "DE406". In the file: SweJpl.cs - function: swi_open_jpl_file the line "retc = read_const_jpl (ss, ref serr);" returns -2.

I hope I have not created any confusion.

Thanks. Antonio

[ygrenier]

How I'm a stupid guy !! I correct the default search path in SweWin, look at the last code version.

Normally SwissEph and JPL have same behavior and Moshier have differents results now.

Sorry, I think I was so tired yesterday when I define the default path :(

Yanos

[blucobalto]

No problem. Stuff happens. You're doing so much already.

The problem between Moshier and "Swiss Eph / DE406" is solved.

The problem between the "Swiss Eph" and "DE406" remains. Test If I enter the following parameters: Date: 07/05/2014 Time: 10:31:49 Type: JPL Ephemeris DE406 I get:

SweWin (original) Saturn 20 sc 16' 5.9163 2°29' 5.2078 8.901383263 -0° 4'30.0268 4.4696

SweWin (Net) Saturn 20 sc 16' 6.0006 2°29' 5.2541 8,901385122 -0° 4'30.0267 4,4696

Thanks a lot, Antonio

[ygrenier]

When I do the test I have exactely the same values :

Original : Saturn 20 sc 16' 6.0006 2°29' 5.2541 8.901385122 -0° 4'30.0267 4.4696 .Net : Saturn 20 sc 16' 6.0006 2°29' 5.2541 8,901385122 -0° 4'30.0267 4,4696

For all planets. The only différences i have between Original et .Net version is for Moshier method on Mean/True node and Mean/Osc. apogee.

Perhaps we don't have the same files that explain the difference calculations between our tests ! Personnly I use the last files downloaded from "ftp://ftp.astro.ch/pub/swisseph/ephe/" but only the files, the Subfolders are missing on my computer and I added directly three asteroid files. Here my list :

03/05/2014  20:37               235 .message
03/05/2014  20:34           119 336 fixstars.cat
03/05/2014  20:36           107 400 fixstars.cat.1
03/05/2014  20:40           101 457 fixstars.txt
03/05/2014  20:39             2 568 LICENSE.TXT
03/05/2014  20:41             2 538 md5sum.txt
03/05/2014  20:37             6 249 README.TXT
04/05/2014  19:20           105 656 se00433s.se1
04/05/2014  18:19            41 407 se03045s.se1
04/05/2014  19:21            23 009 se07066s.se1
03/05/2014  20:35           225 432 seasm06.se1
03/05/2014  20:37           222 642 seasm102.se1
03/05/2014  20:35           222 363 seasm108.se1
03/05/2014  20:33           222 388 seasm114.se1
03/05/2014  20:36           226 922 seasm12.se1
03/05/2014  20:33           222 577 seasm120.se1
03/05/2014  20:40           222 724 seasm126.se1
03/05/2014  20:35           223 235 seasm132.se1
03/05/2014  20:41           228 057 seasm18.se1
03/05/2014  20:34           228 975 seasm24.se1
03/05/2014  20:34           229 539 seasm30.se1
03/05/2014  20:40           229 518 seasm36.se1
03/05/2014  20:35           228 933 seasm42.se1
03/05/2014  20:34           227 954 seasm48.se1
03/05/2014  20:38           226 670 seasm54.se1
03/05/2014  20:40           225 519 seasm60.se1
03/05/2014  20:40           224 589 seasm66.se1
03/05/2014  20:40           223 760 seasm72.se1
03/05/2014  20:36           223 297 seasm78.se1
03/05/2014  20:36           222 929 seasm84.se1
03/05/2014  20:39           222 879 seasm90.se1
03/05/2014  20:36           222 694 seasm96.se1
03/05/2014  20:39         7 528 290 seasnam.txt
03/05/2014  20:38         1 682 841 seasnam2.txt
03/05/2014  20:33           224 354 seas_00.se1
03/05/2014  20:35           223 809 seas_06.se1
03/05/2014  20:37           229 041 seas_102.se1
03/05/2014  20:33           229 615 seas_108.se1
03/05/2014  20:36           229 816 seas_114.se1
03/05/2014  20:41           223 396 seas_12.se1
03/05/2014  20:38           229 960 seas_120.se1
03/05/2014  20:35           230 536 seas_126.se1
03/05/2014  20:37           229 995 seas_132.se1
03/05/2014  20:34           229 328 seas_138.se1
03/05/2014  20:37           228 501 seas_144.se1
03/05/2014  20:36           227 639 seas_150.se1
03/05/2014  20:37           226 805 seas_156.se1
03/05/2014  20:34           225 935 seas_162.se1
03/05/2014  20:34           223 002 seas_18.se1
03/05/2014  20:35           222 673 seas_24.se1
03/05/2014  20:34           222 208 seas_30.se1
03/05/2014  20:40           221 567 seas_36.se1
03/05/2014  20:34           221 190 seas_42.se1
03/05/2014  20:41           221 138 seas_48.se1
03/05/2014  20:40           221 392 seas_54.se1
03/05/2014  20:40           221 950 seas_60.se1
03/05/2014  20:37           222 906 seas_66.se1
03/05/2014  20:39           223 798 seas_72.se1
03/05/2014  20:35           224 916 seas_78.se1
03/05/2014  20:41           226 330 seas_84.se1
03/05/2014  20:40           227 170 seas_90.se1
03/05/2014  20:36           228 105 seas_96.se1
03/05/2014  20:36           107 546 sefstars.txt
03/05/2014  20:34         1 332 945 semom06.se1
03/05/2014  20:33         1 457 499 semom102.se1
03/05/2014  20:34         1 466 886 semom108.se1
03/05/2014  20:40         1 476 216 semom114.se1
03/05/2014  20:39         1 347 197 semom12.se1
03/05/2014  20:37         1 490 638 semom120.se1
03/05/2014  20:40         1 499 802 semom126.se1
03/05/2014  20:36         1 514 331 semom132.se1
03/05/2014  20:36         1 356 379 semom18.se1
03/05/2014  20:35         1 365 357 semom24.se1
03/05/2014  20:33         1 371 740 semom30.se1
03/05/2014  20:40         1 380 820 semom36.se1
03/05/2014  20:41         1 390 210 semom42.se1
03/05/2014  20:35         1 398 880 semom48.se1
03/05/2014  20:37         1 403 463 semom54.se1
03/05/2014  20:36         1 409 454 semom60.se1
03/05/2014  20:36         1 414 798 semom66.se1
03/05/2014  20:34         1 423 009 semom72.se1
03/05/2014  20:40         1 427 325 semom78.se1
03/05/2014  20:36         1 433 946 semom84.se1
03/05/2014  20:41         1 443 026 semom90.se1
03/05/2014  20:35         1 453 178 semom96.se1
03/05/2014  20:41         1 322 594 semo_00.se1
03/05/2014  20:39         1 316 045 semo_06.se1
03/05/2014  20:39         1 411 422 semo_102.se1
03/05/2014  20:41         1 416 577 semo_108.se1
03/05/2014  20:39         1 420 469 semo_114.se1
03/05/2014  20:36         1 305 931 semo_12.se1
03/05/2014  20:40         1 424 162 semo_120.se1
03/05/2014  20:37         1 432 625 semo_126.se1
03/05/2014  20:34         1 442 619 semo_132.se1
03/05/2014  20:39         1 450 003 semo_138.se1
03/05/2014  20:38         1 459 433 semo_144.se1
03/05/2014  20:38         1 474 021 semo_150.se1
03/05/2014  20:37         1 495 817 semo_156.se1
03/05/2014  20:38         1 505 928 semo_162.se1
03/05/2014  20:39         1 304 771 semo_18.se1
03/05/2014  20:33         1 308 123 semo_24.se1
03/05/2014  20:41         1 312 208 semo_30.se1
03/05/2014  20:35         1 326 257 semo_36.se1
03/05/2014  20:35         1 339 659 semo_42.se1
03/05/2014  20:37         1 349 937 semo_48.se1
03/05/2014  20:37         1 358 320 semo_54.se1
03/05/2014  20:35         1 366 885 semo_60.se1
03/05/2014  20:40         1 375 610 semo_66.se1
03/05/2014  20:34         1 383 983 semo_72.se1
03/05/2014  20:41         1 391 143 semo_78.se1
03/05/2014  20:37         1 397 403 semo_84.se1
03/05/2014  20:36         1 402 879 semo_90.se1
03/05/2014  20:36         1 407 105 semo_96.se1
03/05/2014  20:40             4 832 seorbel.txt
03/05/2014  20:37               389 sepl.memo
03/05/2014  20:41           484 266 seplm06.se1
03/05/2014  20:39           630 636 seplm102.se1
03/05/2014  20:34           641 587 seplm108.se1
03/05/2014  20:36           650 870 seplm114.se1
03/05/2014  20:40           483 990 seplm12.se1
03/05/2014  20:35           656 541 seplm120.se1
03/05/2014  20:34           662 357 seplm126.se1
03/05/2014  20:38           665 907 seplm132.se1
03/05/2014  20:35           488 142 seplm18.se1
03/05/2014  20:35           489 846 seplm24.se1
03/05/2014  20:34           493 416 seplm30.se1
03/05/2014  20:35           500 226 seplm36.se1
03/05/2014  20:41           513 210 seplm42.se1
03/05/2014  20:34           521 081 seplm48.se1
03/05/2014  20:35           531 230 seplm54.se1
03/05/2014  20:34           541 501 seplm60.se1
03/05/2014  20:38           553 441 seplm66.se1
03/05/2014  20:39           565 716 seplm72.se1
03/05/2014  20:37           582 598 seplm78.se1
03/05/2014  20:34           609 773 seplm84.se1
03/05/2014  20:41           617 973 seplm90.se1
03/05/2014  20:38           625 668 seplm96.se1
03/05/2014  20:33           483 871 sepl_00.se1
03/05/2014  20:34           482 953 sepl_06.se1
03/05/2014  20:34           566 462 sepl_102.se1
03/05/2014  20:37           574 871 sepl_108.se1
03/05/2014  20:40           589 817 sepl_114.se1
03/05/2014  20:38           483 757 sepl_12.se1
03/05/2014  20:40           598 274 sepl_120.se1
03/05/2014  20:39           605 675 sepl_126.se1
03/05/2014  20:38           619 007 sepl_132.se1
03/05/2014  20:37           623 354 sepl_138.se1
03/05/2014  20:35           628 335 sepl_144.se1
03/05/2014  20:36           644 186 sepl_150.se1
03/05/2014  20:33           652 910 sepl_156.se1
03/05/2014  20:35           658 153 sepl_162.se1
03/05/2014  20:34           484 055 sepl_18.se1
03/05/2014  20:40           483 402 sepl_24.se1
03/05/2014  20:39           484 373 sepl_30.se1
03/05/2014  20:40           484 686 sepl_36.se1
03/05/2014  20:40           483 628 sepl_42.se1
03/05/2014  20:34           485 517 sepl_48.se1
03/05/2014  20:34           488 956 sepl_54.se1
03/05/2014  20:33           493 649 sepl_60.se1
03/05/2014  20:36           501 136 sepl_66.se1
03/05/2014  20:37           508 815 sepl_72.se1
03/05/2014  20:34           516 226 sepl_78.se1
03/05/2014  20:38           530 714 sepl_84.se1
03/05/2014  20:34           543 316 sepl_90.se1
03/05/2014  20:39           554 703 sepl_96.se1
             166 fichier(s)      119 028 228 octets

Yanos

[blucobalto]

Maybe I understand the problem. The software SwissEph reads three types of files.

Swiss Ephemeris The core part of Swiss Ephemeris is a compression of the JPL-DE431 ephemeris, All Swiss Ephemeris files have the file suffix. Se1.

Moshier This is a semi-analytical approximation of the JPL planetary and lunar ephemerides DE404, developed by Steve Moshier.

JPL This is the full precision state-of-the-art ephemeris. It provides the highest precision and is the basis of the Astronomical Almanac. Filename is: de406.eph or de431.eph.

Problem When I select the type in SweWin.exe "JPL DE406" the software to read the file data jpl de406.eph. If not found try to use the Swiss Eph file (*.se1). I noticed that in your folder does not exist the file de406.eph (194MB) or de431.eph (2700MB). That's why you see the same results.

Antonio

[ygrenier]

OK it's that I supposed.

I looking for that tomorrow.

Thanks.

Yanos

[ygrenier]

OK I just fix the DE406 file reading.

I waiting to download the DE431 file for more tests.

Yanos

[ygrenier]

Now I just fix an error for reading the DE431 file that very large and crash the applications.

My tests are now same than the test page. So I close this issue.