25 November 2017
⇐20171124 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171126⇒

NOAA
1 Active Region
12687

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 E16S32
(-231",-540") 		E35-W06
(41) 		3.4 -1.7 -2.2e33
2 E40S64
(-273",-885") 		E59-W26
(85) 		1.2 -0.6 -2.5e33
3 W18N10
(304",142") 		W13-W28
(15) 		0.8 -2.3 -4.2e32
4 W57N65
(336",879") 		W57-W59
(2) 		0.1 1.0 5.2e32

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-Nov-2017 20:30 UT .