13 April 2022
⇐20220412 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220414⇒

NOAA
4 Active Regions
12988
12989
12985
12987

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E11N12
(-176",298") 		E38-W27
(65) 		12.3 0.7 1.5e21
2 E57S62
(-384",-814") 		E60-E56
(4) 		1.2 -0.7 -3.4e20
3 E28N46
(-316",745") 		E30-E27
(3) 		0.1 -0.4 -8.1e18

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

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, and the region positions are valid on 13-Apr-2022 23:30 UT .