Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /nfs/aesop1/hw00/d22/dasc/WikiRoiPac/inc/parser/handler.php on line 1376
Warning: preg_match(): Compilation failed: invalid range in character class at offset 3106 in /nfs/aesop1/hw00/d22/dasc/WikiRoiPac/inc/parser/lexer.php on line 118
A PCRE internal error occured. This might be caused by a faulty plugin
Warning: Cannot modify header information - headers already sent by (output started at /nfs/aesop1/hw00/d22/dasc/WikiRoiPac/inc/parser/handler.php:1376) in /nfs/aesop1/hw00/d22/dasc/WikiRoiPac/inc/actions.php on line 657
Warning: Cannot modify header information - headers already sent by (output started at /nfs/aesop1/hw00/d22/dasc/WikiRoiPac/inc/parser/handler.php:1376) in /nfs/aesop1/hw00/d22/dasc/WikiRoiPac/inc/actions.php on line 657
Warning: Cannot modify header information - headers already sent by (output started at /nfs/aesop1/hw00/d22/dasc/WikiRoiPac/inc/parser/handler.php:1376) in /nfs/aesop1/hw00/d22/dasc/WikiRoiPac/inc/actions.php on line 657
===== Orbit Files =====
ROI_PAC is compatible with either ODR or PRC orbits.
==== ODR Orbit Files ====
From the [[http://www.deos.tudelft.nl/ers/precorbs/|Precise Orbit Determination]] web-page, click the "Orbits" link under the content heading. Choose the link for "precise orbits" for the appropriate satellite and follow the download instructions for ODR files **and the arclist**. Remember to also download the program [[http://www.deos.tudelft.nl/ers/precorbs/tools/|getorb]] and install it on your system.
:!:The ''getorb'' executable must be located in the ''INT_BIN'' directory with the other ROI_PAC executables.
==== PRC Orbit Files ====
A password is required to download PRC orbits from ESA's website.
The file name for PRC orbits can be interpreted as follows:
PPP_yymmdd_no_revi.Z
|PPP|PRC|
|yymmdd|start date of the orbit: year (yy), month (mm), day (dd)|
|no|absolute orbit number (revolutions since launch) at orbit begin|
|revi|revision id|
Retrieve the orbit file with the date and orbit number that most closely __precedes__ the date and orbit of the given SAR scene. After downloading the necessary files, update the list of orbit files by running arclist_PRC.pl in the same directory.