17 September 2018
20180916 Week Rotation Today Rotation Week 20180918

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E33N54
(-309",710")
E88-W00
(88)
4.6 0.9 3.2e21
2 W35S19
(519",-403")
W15-W47
(32)
2.8 -0.9 -1.3e21
3 E05S56
(-49",-852")
E43-W24
(67)
2.0 -0.6 -1.6e21
4 W08S28
(120",-544")
W01-W14
(13)
0.5 -0.6 -9.8e19
5 E52S07
(-744",-190")
E57-E48
(9)
0.1 -0.9 -9.3e19
6 W23S28
(323",-546")
W20-W27
(7)
0.1 -0.6 -3.1e19

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 17-Sep-2018 23:10 UT .