13 January 2012
⇐20120112 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120114⇒

NOAA
5 Active Regions
11391
11395
11396
11397
11398

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W06N06
(105",177") 		E04-W13
(17) 		2.1 -4.1 -1.7e33
2 E14S30
(-201",-433") 		E23-E06
(17) 		0.4 -6.3 -8.0e32
3 E02N25
(-34",477") 		E04-E00
(4) 		0.0 -41.7 -4.7e32

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 13-Jan-2012 22:00 UT .