16 August 2012
⇐20120815 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120817⇒

NOAA
3 Active Regions
11542
11543
11546

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07S18
(-111",-403") 		E24-W08
(32) 		3.1 2.4 2.0e33
2 E22N53
(-215",690") 		E45-W07
(52) 		1.3 0.5 3.9e32
3 E43S40
(-493",-670") 		E51-E34
(17) 		0.7 0.4 3.7e32

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 16-Aug-2012 21:00 UT .