7 October 2013
⇐20131006 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131008⇒

NOAA
5 Active Regions
11855
11856
11857
11859
11854

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27N30
(-379",389") 		E58-W03
(61) 		2.7 -4.7 -4.5e33
2 W19N20
(292",231") 		W07-W26
(19) 		0.6 -1.4 -2.2e32
3 W42N57
(346",760") 		W32-W46
(14) 		0.5 0.6 3.4e32
4 W16N36
(212",485") 		W03-W24
(21) 		0.4 1.5 2.4e32
5 E34S38
(-421",-661") 		E51-E23
(28) 		0.3 -1.3 -3.7e32
6 W25S25
(368",-490") 		W21-W29
(8) 		0.2 5.8 5.3e32

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 7-Oct-2013 23:35 UT .