20 September 2017
20170919 Week Rotation Today Rotation Week 20170921

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W46N65
(289",828")
E73-W66
(139)
3.3 1.1 6.5e33
2 E09S22
(-137",-466")
E15-W02
(17)
2.6 -0.4 -3.3e32
3 E17S57
(-154",-859")
E55-W34
(89)
1.7 -0.7 -2.3e33
4 E64N25
(-777",350")
E73-E56
(17)
0.6 0.9 7.4e32
5 W07S16
(106",-378")
W02-W09
(7)
0.2 -1.2 -5.7e31
6 E20S51
(-209",-805")
E25-E14
(11)
0.2 -0.8 -1.6e32

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/solarmonitor/solarmonitoridl/idl. An extensive copy of coronal hole properties are available at: solarmonitor.org/data. The latest positions of the coronal holes are given in heliocentric co-ordinates. The region positions are valid on 20-Sep-2017 19:30 UT .