6 February 2013
⇐20130205 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130207⇒

NOAA
3 Active Regions
11665
11667
11669

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E16S39
(-210",-525") 		E31-W10
(41) 		2.6 3.4 3.2e33
2 W37N31
(497",578") 		W10-W54
(44) 		2.6 -2.4 -4.5e33
3 E22S74
(-101",-901") 		E85-W44
(129) 		1.2 0.8 2.2e33
4 W40S28
(550",-375") 		W34-W49
(15) 		0.4 6.3 1.3e33
5 W13S18
(207",-204") 		W08-W18
(10) 		0.1 13.2 4.3e32

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 6-Feb-2013 22:00 UT .