The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part BI. Beijing 2008 
Table 3. RMS error of different GCPs and Check points 
number and distribution scheme 
4. CONCLUSIONS 
Based on the experiment and analysis of CARTOSAT-1 stereo 
pair conducted in this paper, it is concluded that the planimetry 
and height accuracy of CARTOSAT-1 stereo pair could reach 
5-meter, which meets the national 1:50,000 topographic maps 
survey specifications. 
The two camera of CARTOSAT-1 has two independent sets of 
imaging system, which could work on orbit synchronously and 
compose continuous stereo swath. And the swath could reach 
several thousands kilometers, which guarantee data acquisition 
in large-scale surveying projects. So further research on large- 
scale triangulation and survey of CARTOSAT-1 will have great 
practical value. 
5. ACKNOWLEDGMENTS 
The experiment data in this paper is provided by Beijing East 
Dawn Information Technology Company Limited, who is the 
primary agency of CARTOSAT-1 satellite data in China. 
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