4 July 2013
⇐20130703 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130705⇒

NOAA
6 Active Regions
11780
11781
11784
11785
11786
11787

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W22N49
(231",679") 		E64-W50
(114) 		8.2 1.0 5.0e33
2 W04S30
(56",-520") 		E12-W15
(27) 		1.5 4.2 2.2e33
3 E30S27
(-418",-466") 		E32-E27
(5) 		0.1 -0.8 -5.2e31
4 E16S39
(-207",-639") 		E19-E14
(5) 		0.1 -0.5 -1.5e31
5 E24S40
(-295",-640") 		E25-E23
(2) 		0.0 -7.7 -1.7e32

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 4-Jul-2013 13:00 UT .