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<body class='hmmessage'><div dir='ltr'>Hey everyone,<br><br>I would like to ask about the required files that someone needs in order to estimate PPP solutions.<br><br>Besides the precise orbit and clock products (sp3 and clk), observation and navigation files, is there any other file that someone should use for PPP estimation ? Is it mandatory to include ANTEX files (atx, pcv) for antenna phase center variations, or DCB files ?<br><br>Afterwards, in the case of multi-GNSS post-processing PPP, MGEX has not published any MGEX ANTEX files, so is it fine if igs08.atx file is used within the processing ?<br><br>Thank you in advance.<br><br>Best regards,<br>Dimitris Psychas<br><br><br> </div></body>
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