20 July 2013
⇐20130719 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130721⇒

NOAA
7 Active Regions
11791
11793
11796
11797
11798
11799
11800

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W34N33
(444",456") 		E14-W69
(83) 		8.2 -2.6 -9.8e33
2 E41N02
(-616",-27") 		E47-E34
(13) 		1.2 5.1 2.7e33
3 E19S51
(-194",-775") 		E27-E11
(16) 		0.2 -2.3 -5.5e32
4 E19N48
(-202",656") 		E25-E13
(12) 		0.2 -1.0 -1.1e32
5 E05N57
(-49",747") 		E11-W02
(13) 		0.2 -0.3 -4.5e31
6 E29N52
(-284",701") 		E34-E27
(7) 		0.1 -1.2 -4.7e31
7 E50S49
(-479",-741") 		E51-E45
(6) 		0.0 -1.5 -1.4e32

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 20-Jul-2013 21:00 UT .