24 March 2020
⇐20200323 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200325⇒

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 E11S21
(-173",-233") 		E39-W39
(78) 		9.2 -0.3 -6.5e20
2 E02S64
(-12",-811") 		E45-W74
(119) 		4.7 -1.0 -4.5e21

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 24-Mar-2020 20:30 UT .