AUSPOS system development plan and software bugs

• Data by date
• Software development plans
• AUSPOS known software bugs
• AUSPOS user suggestions

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Data by date

• 15/08/2003 NEW FEATURE! --- new antennas added to AUSPOS.
• 10/08/2003 NEWS! --- AUSPOS move from www.auslig.gov.au to www.ga.gov.au.
• 07/08/2002 NEW FEATURE! --- AUSPOS now provides height above Geoid for stations outside of Australia using EGM96. Stations within Australia still use AUSgeoid98.
• 26/02/2002 NEW FEATURE! --- AUSPOS now uses elevation dependent weights for improved GPS heightening.
• 07/02/2002 BUG FIX! --- Users can now copy and paste from the AUSPOS PDF report file to other applications.
• 06/12/2001 IMPORTANT NOTICE! --- AUSPOS moves from ITRF97 to ITRF2000
• 09/11/2001 IMPORTANT NOTICE! --- Australian Surveying and Land Information Group (AUSLIG) becomes National Mapping Division (NMD), Geoscience Australia.
• 11/10/2001 NEW FEATURE! --- Added the Trimble Zephyr geodetic antennas to the antenna list.
• 08/09/2001 NEW FEATURE! --- MGA94 grid coordinates are now supplied for all Australian users.
• 01/09/2001 BUG FIX! --- Email delivery system improved, now functions with greater reliability to all known email servers.
• 21/06/2001 NEW FEATURE! --- New IGS phase centre antenna models added.
• 14/02/2001 NEW FEATURE! --- The User Profile page has been upgraded to automatically update every 30 minutes.
• 06/02/2001 NEW FEATURE! --- The IGS filename convention constraint has now been removed.
• 06/02/2001 NEW FEATURE! --- ZIP files can now be submitted (limited to one file per ZIP archive).
• 06/02/2001 NEW FEATURE! --- Non-anonymous ftp file retrieval now included in ftp file retrieval option (see the Step by Step User Guide).
• 20/12/2000 NEW FEATURE! --- Some commercial RINEXing software products produce RINEX with an incorrect LEAP SECOND RINEX header record. The strict RINEX format check process has now been modified to ignore this header record regardless of it value.
• 08/12/2000 NEW FEATURE! --- The height above the geoid is now provided for all sites within the AUSGeoid98 extents.
• 06/12/2000 NEW FEATURE! --- Our software will now detect if a RINEX file APPROX XYZ header record is bad and if so will replace it with a pseudo-range derived APPROX XYZ.
• 05/12/2000 NEW FEATURE! --- The service now makes use of the IGS ultra-rapid product, the predicted IGS product is no longer in use.
• 05/12/2000 BUG FIX! --- In the case of multiple file solutions for the same site, with different antenna heights, the antenna height of the first file was incorrectly applied to all the input files with the same site name.
• 28/11/2000 BUG FIX! --- A new map plotting routine has now been implemented, previously the site map in some circumstances was obstructed by the world map.
• 09/11/2000 RELEASE! --- The AUSPOS Online GPS Processing System, released 9th November 2000. Service opened by The Hon Warren Entsch MP, Parliamentary Secretary to the Minister for Industry, Science and Resources.
• 06/11/2000 BUG FIX! --- Individual RINEX files longer than 48 hours can now be submitted.
• 02/11/2000 BUG FIX! --- Some users have noted that the GPS processing PDF report had not attached correctly to the email message sent to users. The PDF file encoding now has been upgraded to the MIME standard and should be compatible with most mail servers.
• 01/11/2000 BUG FIX! --- In certain circumstances processing jobs were terminated incorrectly with the reported error being "not enough dual frequency observations".

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Software development plans

• The IGS site selection algorithm will be modified so that it considers network geometry.
• Aesthetic changes to the report format are planned.
• A new email report format is planned. Results will be delivered in a text report with the option to download the complete PDF report. The PDF report will NOT be attached to the results email.
• A new processing strategy will be implemented to allow processing of data sets as small as 15 minutes in length (± 1m accuracy).
• Provision of EGM96 geoidal heights for stations outside Australia.

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AUSPOS known software bugs

Thanks to all those who participate in our ongoing software bug identification.

Current known bugs include:

• 24 hour x 1 second data files causes system to fail (an empty report is returned) -- Under investigation.

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AUSPOS user suggestions

We welcome user suggestions as to ways we can improve this service. Please let us know if this service is not meeting your needs, resources permitting we will try to improve this service. Below are some user suggestions that we are considering:

• don't attach PDF report to results email -- provide the results in a simple ASCII format within the email and provide a link to the full report for those users that need it;
• process single frequency GPS;
• additional format results output, ie NEWGAN observation file format;
• extra processing options on the submission page; and
• short time span processing.

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