16 February 2020
⇐20200215 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200217⇒

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 E04S43
(-54",-579") 		E43-W51
(94) 		19.1 -0.4 -2.7e21
2 W37S27
(515",-360") 		W31-W44
(13) 		0.3 -0.7 -1.0e20
3 E28S24
(-417",-291") 		E32-E25
(7) 		0.1 -0.9 -2.9e19
4 E49N14
(-711",313") 		E52-E45
(7) 		0.1 -1.8 -9.2e19

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 16-Feb-2020 20:30 UT .