22 February 2015
⇐20150221 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150223⇒

NOAA
5 Active Regions
12287
12288
12289
12290
12284

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W16S72
(82",-884") 		E79-W78
(157) 		2.0 -0.6 -2.1e33
2 W16S13
(257",-109") 		W03-W30
(27) 		1.3 5.1 1.4e33
3 E14N06
(-238",210") 		E18-E09
(9) 		0.1 7.0 2.3e32

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-Feb-2015 22:35 UT .