22 January 2015
⇐20150121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150123⇒

NOAA
6 Active Regions
12265
12266
12267
12261
12263
12264

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W23N46
(258",760") 		E23-W44
(67) 		5.3 0.3 1.6e33
2 E02S65
(-12",-842") 		E84-W58
(142) 		5.1 -0.8 -4.7e33
3 E26N21
(-397",417") 		E32-E20
(12) 		0.7 -8.0 -2.0e33

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-Jan-2015 22:35 UT .