29 August 2020
⇐20200828 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200830⇒

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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 W12N58
(107",737") 		E74-W72
(146) 		6.9 0.8 1.4e21
2 W58N38
(631",535") 		W51-W64
(13) 		0.4 0.5 7.1e19
3 W38S04
(580",-159") 		W33-W42
(9) 		0.1 -0.7 -2.1e19
4 W34S29
(469",-546") 		W31-W38
(7) 		0.1 -0.6 -1.8e19
5 W22S14
(342",-329") 		W20-W23
(3) 		0.1 -0.9 -8.5e18

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 29-Aug-2020 19:00 UT .