11 August 2018
⇐20180810 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180812⇒

NOAA
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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 E16N54
(-152",697") 		E53-W83
(136) 		11.1 1.1 7.7e21
2 W55S04
(771",-123") 		W50-W60
(10) 		0.2 -0.5 -7.7e19
3 E25S24
(-363",-476") 		E26-E23
(3) 		0.0 -0.7 -1.4e19

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 11-Aug-2018 23:10 UT .