23 July 2012
⇐20120722 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120724⇒

NOAA
5 Active Regions
11525
11526
11527
11528
11529

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W25N52
(246",699") 		E14-W60
(74) 		3.8 0.6 1.7e33
2 E47N07
(-688",57") 		E63-E33
(30) 		1.7 -1.1 -1.0e33
3 W43S22
(594",-408") 		W33-W48
(15) 		0.4 4.8 1.3e33
4 W29S32
(393",-561") 		W25-W33
(8) 		0.1 7.3 4.9e32
5 W25N36
(322",491") 		W23-W26
(3) 		0.0 -0.7 -1.2e31

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-Jul-2012 23:00 UT .