27 August 2015
⇐20150826 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150828⇒

NOAA
2 Active Regions
12403
12404

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W13S43
(153",-723") 		E44-W29
(73) 		5.8 -1.9 -7.8e33
2 W20N09
(316",36") 		W10-W28
(18) 		1.7 -8.8 -3.5e33
3 E43N00
(-646",-84") 		E50-E36
(14) 		0.5 1.6 3.6e32
4 E12S17
(-191",-387") 		E16-E10
(6) 		0.1 3.7 1.2e32

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 27-Aug-2015 23:35 UT .