11 January 2022
⇐20220110 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220112⇒

NOAA
4 Active Regions
12924
12925
12927
12926

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 E34S50
(-348",-714") 		E39-W52
(91) 		9.3 -1.3 -3.2e21
2 W26N03
(424",115") 		W10-W45
(35) 		3.6 0.2 1.3e20
3 W20N57
(177",858") 		E30-W52
(82) 		2.3 0.5 3.9e20

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 11-Jan-2022 20:30 UT .