17 December 2018
20181216 Week Rotation Today Rotation Week 20181218

NOAA
2 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W21S27
(307",-432")
E07-W43
(50)
5.7 -0.4 -7.3e20
2 E15N66
(-103",897")
E70-W59
(129)
2.0 0.7 2.8e21
3 W29S68
(175",-898")
E65-W58
(123)
1.6 -1.1 -4.4e21
4 E35S01
(-554",-4")
E45-E21
(24)
0.8 -1.0 -2.9e20
5 W22S46
(253",-684")
W15-W28
(13)
0.3 -0.6 -1.2e20
6 W09N20
(136",350")
W07-W10
(3)
0.0 -1.2 -1.3e19
7 W28N25
(412",436")
W27-W30
(3)
0.0 -0.6 -9.9e18

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-Dec-2018 20:30 UT .