1 June 2020
⇐20200531 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200602⇒

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 E06N03
(-106",57") 		E41-W39
(80) 		8.3 0.0 2.1e18
2 W28S24
(409",-372") 		W09-W48
(39) 		4.3 -0.3 -5.5e20
3 E03S65
(-22",-852") 		E64-W75
(139) 		2.9 -0.8 -3.9e21
4 W05N64
(35",857") 		E70-W45
(115) 		2.6 0.9 3.9e21
5 E28N44
(-319",666") 		E36-E23
(13) 		0.3 0.5 1.1e20

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 1-Jun-2020 11:30 UT .