Night Light of Progress (Pennsylvania) from space (United States) Src. Average luminocity for 10x10km area is 85.6293% and for 50x50km: 26.3634%.
Square area 10x10 km:
 25.51%
 29.25%
 10.37%
 11.05%
 16.16%
 7.65%
 0%
 0%
 0%
 0%
 0%Square area 50x50 km:
 3.85%
 4.14%
 3.64%
 3.57%
 3.86%
 3.91%
 3.56%
 4.32%
 7.38%
 17.22%
 44.54%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
40° 49' 9.6" North, 77° 32' 4.2" West
40° 17' 6.3" North, 76° 49' 52.9" West
39° 44' 47.7" North, 76° 7' 41.7" West
Some cities around Progress sort by population:
• Harrisburg
		4.7 km =2.9 mi, 
254°
• Colonial Park
		2.5 km =1.6 mi, 
46°
• New Cumberland
		7.4 km =4.6 mi, 
217°
• Lower Allen
		8.8 km =5.5 mi, 
222°
• Linglestown
		6.5 km =4 mi, 
33°
• Enola
		8.7 km =5.4 mi, 
273°
• Steelton
		5.6 km =3.5 mi, 
188°
• Paxtonia
		4.8 km =3 mi, 
41°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016