5 January 2022
⇐20220104 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220106⇒

NOAA
3 Active Regions
12924
12919
12922

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 W00S08
(6",-82") 		E34-W40
(74) 		6.0 -0.1 -5.2e19
2 W06S48
(70",-682") 		E75-W34
(109) 		5.8 -1.5 -1.8e21
3 E35N62
(-259",885") 		E51-E16
(35) 		0.7 0.5 1.8e20
4 E38S05
(-596",-32") 		E39-E36
(3) 		0.0 -0.9 -6.7e18

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 5-Jan-2022 20:30 UT .