23 March 2020
⇐20200322 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200324⇒

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 E28S22
(-418",-263") 		E57-E04
(53) 		5.4 -0.3 -4.5e20
2 W08S67
(52",-832") 		E55-W65
(120) 		4.4 -1.0 -5.2e21
3 W07N13
(121",323") 		E08-W20
(28) 		1.9 0.4 1.9e20
4 W11S20
(166",-214") 		W01-W21
(20) 		1.6 0.3 8.8e19

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 23-Mar-2020 20:30 UT .