26 March 2017
⇐20170325 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170327⇒

NOAA
1 Active Region
12643

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 E14S44
(-174",-580") 		E58-W25
(83) 		15.4 -1.2 -7.4e33
2 W20N11
(330",281") 		W17-W24
(7) 		0.3 -3.4 -2.7e32
3 W20N17
(313",389") 		W17-W23
(6) 		0.1 -1.4 -3.4e31

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 26-Mar-2017 19:30 UT .