23 January 2012
⇐20120122 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120124⇒

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 E35S48
(-381",-671") 		E63-W03
(66) 		10.4 1.9 1.4e34
2 E32N44
(-369",728") 		E67-W04
(71) 		2.4 1.3 3.0e33
3 W07S14
(108",-146") 		E00-W10
(10) 		0.6 1.4 1.5e32
4 W35S51
(354",-712") 		W26-W47
(21) 		0.3 0.6 1.8e32
5 W03S32
(39",-435") 		W00-W05
(5) 		0.1 -4.0 -8.1e31
6 W15S09
(252",-63") 		W13-W17
(4) 		0.0 -1.4 -1.4e31

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-Jan-2012 22:00 UT .