39° 7.5'
-77° 30'		 39° 7.5'
-77° 22.5'
 DCA
91 - C
 
39° 0'
-77° 30'		Mag Variation:
10.7° W		39° 0'
-77° 22.5'
←
DCA 90 - D
←		DCA 91 - C →
DCA 91 - D
→
39° 7.5'
-77° 30'		↑  DCA 91 - A  ↑39° 7.5'
-77° 22.5'
39° 0'
-77° 30'		 ↓ DCA 119 - A  ↓ 39° 0'
-77° 22.5'
 
Avg Mag Variation: 10.7° W
For:NorthEastSouthWest
Steer:011101191281

Start of AM Civil Twilight:

05:31 EDT

End of PM Civil Twilight:

18:29 EDT