24 November 2017
⇐20171123 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171125⇒

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 E32S45
(-367",-700") 		E44-E22
(22) 		2.9 -1.9 -4.6e33
2 W42N67
(253",888") 		3.2e05
(1.0) 		5.8 -5.2 -1.7e34
3 W07N11
(118",152") 		E02-W15
(17) 		0.9 -1.8 -3.2e32
4 W10S76
(39",-949") 		E19-W23
(42) 		0.1 -0.7 -4.7e32

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 24-Nov-2017 20:30 UT .