11 July 2021
⇐20210710 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210712⇒

NOAA
3 Active Regions
12841
12842
12839

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 W16S34
(219",-581") 		E31-W53
(84) 		20.5 -0.8 -3.2e21
2 W01N70
(3",863") 		E79-W75
(154) 		1.8 0.9 6.4e20

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-Jul-2021 23:30 UT .