17 November 2017
⇐20171116 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171118⇒

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 W13N15
(204",208") 		E10-W26
(36) 		5.2 1.2 1.3e33
2 E40N63
(-285",850") 		E71-E11
(60) 		1.7 1.0 3.2e33
3 W47S70
(249",-919") 		E00-W59
(59) 		0.4 -1.1 -3.9e33
4 W48S17
(693",-315") 		W45-W51
(6) 		0.1 -1.2 -8.1e31
5 W15S20
(235",-374") 		W13-W17
(4) 		0.1 -1.0 -2.0e31

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 17-Nov-2017 20:30 UT .