7 January 2020
⇐20200106 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200108⇒

NOAA
1 Active Region
12755

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 W13S02
(228",32") 		E44-W47
(91) 		12.4 -0.1 -3.3e20
2 E01S66
(-4",-864") 		E69-W70
(139) 		4.0 -1.1 -6.0e21
3 W34N68
(207",921") 		E31-W53
(84) 		0.9 1.0 4.1e21
4 E34S04
(-541",-22") 		E49-E24
(25) 		0.6 0.9 1.8e20
5 E41N14
(-624",285") 		E43-E40
(3) 		0.0 -0.7 -1.3e19

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 7-Jan-2020 20:30 UT .