24 January 2022
⇐20220123 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220125⇒

NOAA
3 Active Regions
12933
12934
12932

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 E14N05
(-241",177") 		E24-E03
(21) 		2.5 1.0 4.2e20
2 W37S10
(583",-95") 		W32-W43
(11) 		0.4 1.3 1.1e20

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 24-Jan-2022 20:30 UT .