1 January 2019
⇐20181231 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190102⇒

NOAA
0 Active Regions

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 E00S21
(-6",-302") 		E32-W33
(65) 		15.7 -0.5 -1.9e21
2 E38N06
(-598",142") 		E43-E31
(12) 		0.4 -0.9 -1.4e20
3 E48S68
(-269",-892") 		E57-E41
(16) 		0.2 -1.0 -8.2e20
4 E28S78
(-97",-943") 		E68-W12
(80) 		0.2 -1.7 -1.7e21
5 E39N12
(-598",250") 		E43-E34
(9) 		0.1 -0.9 -5.0e19

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 1-Jan-2019 20:30 UT .