29 August 2015
⇐20150828 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150830⇒

NOAA
3 Active Regions
12403
12405
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 W40S45
(438",-729") 		W07-W53
(46) 		3.5 -1.7 -8.5e33
2 E14N03
(-237",-67") 		E23-E06
(17) 		1.6 5.3 1.7e33
3 W48N05
(709",8") 		W44-W53
(9) 		0.2 -2.5 -3.0e32
4 E04N41
(-47",528") 		E07-E00
(7) 		0.1 -2.0 -5.5e31

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 29-Aug-2015 23:35 UT .