28 October 2016
⇐20161027 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161029⇒

NOAA
1 Active Region
12603

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 W22N43
(272",597") 		E78-W75
(153) 		28.8 0.9 1.3e34
2 W20S32
(277",-572") 		W17-W22
(5) 		0.0 -1.0 -2.1e31

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 28-Oct-2016 19:30 UT .