Night Light of Dūsi (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 28.9437% and for 50x50km: 16.6212%.
Square area 10x10 km:
 0%
 6.71%
 1.95%
 2.6%
 1.52%
 3.68%
 10.82%
 5.41%
 13.85%
 37.45%
 16.02%Square area 50x50 km:
 0.25%
 1.63%
 2.89%
 1.88%
 1.71%
 3.02%
 3.96%
 4.36%
 6.89%
 13.04%
 60.37%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
13° 27' 37.8" North, 78° 58' 32.9" East
12° 46' 32.7" North, 79° 40' 44.1" East
12° 5' 20.8" North, 80° 22' 55.4" East
Some cities around Dūsi sort by population:
• Kanchipuram
		7 km =4.3 mi, 
19°
• Arakkonam
		34.3 km =21.3 mi, 
358°
• Chingleput
		33.6 km =20.9 mi, 
106°
• Cheyyar
		19.5 km =12.1 mi, 
228°
• Vandavāsi
		31.2 km =19.4 mi, 
194°
• Uttiramerūr
		19.9 km =12.4 mi, 
154°
• Wallajahbad
		15.8 km =9.8 mi, 
84°
• Kalavai
		28.1 km =17.5 mi, 
268°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016