25 January 2016
⇐20160124 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160126⇒

NOAA
4 Active Regions
12487
12488
12485
12486

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21N43
(-254",730") 		E71-W43
(114) 		11.1 1.4 1.1e34
2 E10S76
(-40",-918") 		E61-W77
(138) 		1.4 -1.2 -4.4e33
3 E39S17
(-582",-221") 		E41-E35
(6) 		0.0 -1.0 -1.8e31
4 E18S30
(-268",-406") 		E21-E16
(5) 		0.0 -4.6 -5.6e31

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 25-Jan-2016 21:35 UT .