23 January 2015
⇐20150122 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150124⇒

NOAA
7 Active Regions
12265
12266
12267
12268
12269
12263
12264

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W04S66
(26",-847") 		E84-W65
(149) 		5.0 -0.9 -5.3e33
2 W37N47
(394",763") 		E03-W50
(53) 		3.6 0.4 2.0e33
3 E11N19
(-178",399") 		E16-E04
(12) 		0.5 -11.5 -1.6e33

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 23-Jan-2015 22:35 UT .