Hi,
In the frame of Sentinel2 , we use IERS bulletinA through EOP loader in processing chain to preform location function :
File[] files = iersDir.listFiles();
if (files != null) {
for (File file : files) {
String fileName = file.getName();
FramesFactory.addDefaultEOP2000HistoryLoaders(null, null, null, null, fileName);
}
if (files.length > 0) {
DataContext.getDefault().getDataProvidersManager().addProvider(new DirectoryCrawler(iersDir));
}
}
// When using a single IERS A bulletin some gaps may arise : to allow the use of such bulletin,
// we fix the EOP continuity threshold to one year instead of the normal gap ...
FramesFactory.setEOPContinuityThreshold(Constants.JULIAN_YEAR);
We save one UT1-UTC, POLE x y directly from IERS bulletin in metadata (at the line corresponding to acqusition date).
These products are fomatted at the end of L1B chain.
We want to reload the geometric model to ehance L1B products with location grids. However we have only access to one EOP value (UT1-UTC, POLE x y at acquisition date), and not to IERS bulletin.
Is there a way to use directly this EOPEntry, and how if it is possible ? (without precision loss ?)
Does orekit perform an EOP interpolation at acquisition date using IERS bulletin ?
Thanks a lot
Jonathan