31 December 2019
20191230 Week Rotation Today Rotation Week 20200101

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05S13
(-87",-164")
E55-W46
(101)
11.8 -0.1 -2.1e20
2 E03S64
(-25",-855")
E77-W58
(135)
4.4 -0.9 -4.7e21
3 W02N68
(15",924")
E46-W41
(87)
0.9 1.0 2.9e21

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 31-Dec-2019 20:30 UT .