6 January 2012
⇐20120105 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120107⇒

NOAA
7 Active Regions
11388
11389
11390
11391
11392
11393
11394

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20S09
(330",-100") 		W07-W31
(24) 		1.9 -5.7 -2.5e33
2 E49S23
(-679",-347") 		E55-E43
(12) 		0.4 10.1 3.1e33
3 E21S08
(-340",-76") 		E24-E15
(9) 		0.2 -2.2 -1.3e32
4 E11S10
(-187",-106") 		E14-E08
(6) 		0.1 -2.1 -3.1e31

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 6-Jan-2012 22:00 UT .