22 November 2015
⇐20151121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151123⇒

NOAA
4 Active Regions
12454
12456
12457
12455

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 E32S54
(-300",-805") 		E69-W24
(93) 		2.8 -0.9 -3.4e33
2 E29N47
(-325",692") 		E58-E05
(53) 		1.9 0.3 3.9e32
3 W10N23
(148",354") 		E05-W15
(20) 		0.6 5.5 8.5e32

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 22-Nov-2015 21:35 UT .