22 January 2012
⇐20120121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120123⇒

NOAA
6 Active Regions
11401
11402
11405
11407
11408
11409

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E45S47
(-476",-665") 		E69-E09
(60) 		7.7 1.6 1.2e34
2 E37N44
(-421",721") 		E73-E09
(64) 		2.0 1.4 3.0e33
3 E08S14
(-129",-156") 		E11-E03
(8) 		0.3 4.2 2.8e32
4 W28S08
(451",-57") 		W25-W31
(6) 		0.2 -2.1 -9.1e31
5 W22S54
(219",-739") 		W19-W26
(7) 		0.1 -0.8 -3.9e31

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-2012 22:00 UT .