7 September 2018
⇐20180906 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180908⇒

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 E07N11
(-113",58") 		E26-W14
(40) 		6.7 1.6 2.0e21
2 E27N62
(-207",783") 		E48-W92
(140) 		6.1 0.9 5.4e21
3 W52N00
(754",-70") 		W48-W57
(9) 		0.1 -1.6 -1.3e20

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-Sep-2018 23:10 UT .