5 January 2024
⇐20240104 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240106⇒

NOAA
4 Active Regions
13534
13536
13537
13538

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 E07S34
(-100",-504") 		E31-W25
(56) 		3.6 1.2 7.8e20
2 E31S58
(-268",-801") 		E41-W06
(47) 		1.2 0.7 2.5e20
3 E23N48
(-253",759") 		E38-E12
(26) 		0.5 2.0 2.9e20
4 E30S36
(-393",-531") 		E33-E25
(8) 		0.1 -0.7 -1.8e19
5 E38S31
(-520",-466") 		E41-E36
(5) 		0.0 2.6 2.5e19

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-2024 20:30 UT .