12 May 2022
⇐20220511 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220513⇒

NOAA
4 Active Regions
13006
13007
13008
13009

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 E26N22
(-387",402") 		E71-W31
(102) 		15.3 0.5 1.6e21
2 W29N09
(452",186") 		W26-W32
(6) 		0.1 -1.2 -2.2e19

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 12-May-2022 23:30 UT .