31 December 2018
20181230 Week Rotation Today Rotation Week 20190101

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S19
(-345",-278")
E50-W15
(65)
14.0 -0.6 -2.5e21
2 W42N61
(317",872")
W21-W59
(38)
0.8 1.0 2.4e21
3 E34S75
(-144",-930")
E67-E39
(28)
0.1 -1.0 -4.8e20
4 E54N06
(-790",128")
E57-E51
(6)
0.1 -1.5 -1.4e20
5 E13N25
(-204",453")
E16-E11
(5)
0.1 -1.2 -2.2e19
6 E29S43
(-348",-639")
E33-E26
(7)
0.1 2.2 6.5e19
7 W30N29
(431",517")
W28-W33
(5)
0.0 -1.7 -3.5e19

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-2018 20:30 UT .