19 November 2023
⇐20231118 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231120⇒

NOAA
4 Active Regions
13486
13489
13490
13488

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 W18N16
(282",229") 		W08-W27
(19) 		1.9 2.7 8.3e20
2 E55N11
(-780",165") 		E62-E45
(17) 		0.6 4.4 6.6e20
3 E10S37
(-136",-613") 		E17-W03
(20) 		0.5 -3.7 -3.7e20
4 W16N65
(114",866") 		W03-W22
(19) 		0.4 -0.9 -1.2e20

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 19-Nov-2023 20:30 UT .