24 February 2019
⇐20190223 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190225⇒

NOAA
0 Active Regions

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 E17S21
(-258",-246") 		E54-W33
(87) 		14.6 -0.5 -1.7e21
2 E16S67
(-109",-838") 		E59-W88
(147) 		4.3 -1.2 -6.0e21
3 E02N62
(-18",907") 		E49-W35
(84) 		1.3 0.6 2.0e21

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 24-Feb-2019 20:30 UT .