15 January 2020
⇐20200114 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200116⇒

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 W10N18
(164",377") 		E17-W33
(50) 		4.4 0.0 1.8e19
2 E22S24
(-340",-327") 		E37-W01
(38) 		3.3 -0.4 -3.5e20
3 W10S71
(57",-894") 		E77-W69
(146) 		2.4 -1.0 -4.4e21
4 E21N67
(-132",925") 		E48-E05
(43) 		0.4 1.2 1.8e21

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 15-Jan-2020 20:30 UT .