25. BASE MAP:BASE MAP:
AT PRESENT 1:50,000 SCALE
FUTURE 1:25,000 SCALE
Geodetic Reference System : WGS 84
Projection System : BUTM/BUTM 2010
( Origin : Lon 90 , Lat 0 )
OTHER TYPE OF MAPS:OTHER TYPE OF MAPS:
@1:5000; 1:250,000; 1:500,000; 1:1,000,000 SCALE MAP
@DIVISIONAL, DISTRICT MAP
@SHORE LINE OR COAST LINE MAP
@COMMUNICATION MAP
@CITY GUIDE MAP
@THEMATIC MAP
@WORLD MAP
26. GPS PILLARS ESTABLISHED 1991 C 1995 (140) -----------
GPS PILLARS ESTABLISHED 2001 C 2003 (135) -----------
GEODETIC CONTROL
POINTS (GCP)- 278,
AVERAGE BASELINE
LENGTH 20/30 KM
GPS CONTROL POINTS VERTICAL CONTROL POINTS
27. ESTABLISHMENT OF NATIONAL HORIZONTAL DATUMESTABLISHMENT OF NATIONAL HORIZONTAL DATUM
HORIZONTAL DATUM
6.429 M
ABOVE MSL
VERTICAL
GEODETIC DATUM