29 June 2018
⇐20180628 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180630⇒

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 W02N05
(32",42") 		E36-W35
(71) 		9.6 -0.3 -4.6e20
2 E19N62
(-141",813") 		E48-W25
(73) 		4.6 0.9 5.0e21
3 W43S63
(295",-853") 		E37-W67
(104) 		1.5 -0.8 -4.3e21

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-Jun-2018 23:10 UT .