23 March 2022
⇐20220322 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220324⇒

NOAA
4 Active Regions
12972
12974
12971
12973

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 W19S08
(316",-22") 		E26-W58
(84) 		11.6 0.9 1.7e21
2 W60S70
(279",-881") 		W43-W73
(30) 		0.7 -1.0 -4.0e20

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 23-Mar-2022 20:30 UT .