23 February 2015
⇐20150222 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150224⇒

NOAA
5 Active Regions
12287
12289
12290
12291
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 E48S73
(-211",-896") 		E88-W21
(109) 		1.0 -0.8 -2.6e33
2 W28S13
(438",-119") 		W18-W42
(24) 		1.0 5.1 1.4e33
3 E72S50
(-595",-712") 		E78-E67
(11) 		0.9 -1.2 -4.2e33
4 E01N06
(-15",225") 		E04-W04
(8) 		0.2 6.8 2.7e32

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 23-Feb-2015 22:35 UT .