26 May 2020
⇐20200525 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200527⇒

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 W10S60
(85",-812") 		E76-W77
(153) 		4.2 -1.0 -4.7e21
2 E15S01
(-241",7") 		E28-W04
(32) 		3.0 -0.3 -2.1e20
3 E39N03
(-596",67") 		E41-E37
(4) 		0.0 -0.8 -1.7e19

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 26-May-2020 19:30 UT .