26 July 2013
⇐20130725 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130727⇒

NOAA
5 Active Regions
11793
11800
11801
11804
11805

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W45N12
(655",139") 		W36-W52
(16) 		0.8 2.8 1.1e33
2 W18S29
(253",-533") 		W12-W25
(13) 		0.4 7.3 1.2e33
3 E69N37
(-699",546") 		E79-E53
(26) 		0.3 0.5 4.1e32
4 E29N35
(-378",477") 		E33-E23
(10) 		0.1 4.6 2.7e32
5 E23N35
(-297",473") 		E24-E21
(3) 		0.0 4.6 7.3e31

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 26-Jul-2013 21:00 UT .