Coordsys Statement Explanation

Pete Smyth

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Feb 21, 2008, 6:56:40 PM2/21/08

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G'day Listers

Could someone explain or point me to some documentation (preferably) where I caan find out what the different components of the Cordsys statement (bleow) means:

CoordSys Earth Projection 8, 33, "m", 153, 0, 0.9996, 500000, 10000000

eg what does the 8 mean, what does the 33 mean, what does the 153 mean etc

Thanks

Pete

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steve...@abs.gov.au

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Feb 21, 2008, 7:56:22 PM2/21/08

to mapi...@googlegroups.com, Pete....@brisbane.qld.gov.au

In the Ver 9 MI_UG.pdf you will find a section near the end of the document
called "Elements of a Coordinate System". In the sub section Projections
and their parameters (page 524) there is a table that tells you what to
expect for the different projection & datum combinations.

The "m" is the units.
The 33 to the left of the units is the datum = Geodetic Reference System
1980 (GRS 80).
The 8 to the left of the 33 is the Projection type. 8 = Transverse
Mercator, (also known as Gauss-Kruger).

So after the "m" we have the Origin Long or the central meridian (153 deg)
= east coast Australia.
To the right of 153 we have 0 = Origin Latitude , Scale factor (0.9996) ,
False East in "m" , False Northing in "m".

Hope this helps.

Regards

Steve Smith
Australian Bureau of Statistics (ABS)
Post: Locked Bag 10 Belconnen ACT 2616
Location: ABS House, 45 Benjamin Way, Belconnen ACT 2617
Geography / Spatial Data Management and Research
ABS Level 2 South 232 , Wk: (02) 6252-6824
wk email: steve...@abs.gov.au

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G'day Listers

Thanks

Pete

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Tony Pilkington

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Feb 21, 2008, 11:37:21 PM2/21/08

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----- Original Message -----

From: Pete Smyth

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Sent: Thursday, February 21, 2008 11:56 PM

Subject: [MI-L] Coordsys Statement Explanation

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