25 March 2020
⇐20200324 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200326⇒

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 E07S25
(-114",-303") 		E37-W24
(61) 		8.0 -0.5 -8.3e20
2 E16S66
(-108",-833") 		E73-W75
(148) 		4.4 -0.9 -4.7e21
3 W18N15
(283",360") 		W14-W21
(7) 		0.1 -0.9 -3.8e19

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 25-Mar-2020 20:30 UT .