16 February 2013
⇐20130215 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130217⇒

NOAA
7 Active Regions
11670
11671
11672
11673
11674
11675
11676

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W04S36
(57",-475") 		E13-W09
(22) 		1.3 -3.4 -1.4e33
2 E57S46
(-567",-649") 		E81-E27
(54) 		0.8 -1.6 -1.8e33

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-Feb-2013 22:00 UT .