10 April 2015
⇐20150409 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150411⇒

NOAA
3 Active Regions
12318
12320
12319

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E34S57
(-294",-750") 		E78-W86
(164) 		6.4 -1.6 -9.9e33
2 E21N27
(-306",516") 		E29-E13
(16) 		0.4 4.0 6.0e32
3 E12N17
(-185",376") 		E13-E10
(3) 		0.0 4.4 5.2e31

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 10-Apr-2015 23:35 UT .