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Jai Shree Ram!

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b154e0 (1) No.1947 [Watch Thread][Show All Posts]

With the National Map Policy of 2005, two series of maps were introduced for India:

1. Open Series Map (OSM) - for civilian use.

2. Defense Series Map (DSM) - for defense use.

DSM maps (and projection system) have following properties:

1. Datum: WGS84

2. Projection: LCC

India has been broken into twenty four zones. Each zone is 8 degrees wide (west to east) and 6 degrees high (south to north). Arrangement of zones is as in image.

Rough derived projection properties:

1. Central Latitude for zones are:

_C N39:00:40

_D N33:00:32

_E N27:00:25

_F N21:00:19

_G N15:00:13

_H N09:00:08

2. Central Longitude for zones are:

5_ E72

6_ E80

7_ E88

8_ E96

3. Scale factor for zones are:

_C 0.999304

_D 0.999304

_E 0.999304

_F 0.999305

_G 0.999305

_H 0.999305

4. False easting/northing is 500000m.

Refer: https://dst.gov.in/sites/default/files/nationalmappolicy.pdf

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