19 June 2020
⇐20200618 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200620⇒

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 W17S15
(265",-266") 		E01-W32
(33) 		5.9 -0.0 -4.5e19
2 E01N67
(-3",858") 		E60-W74
(134) 		2.0 0.8 2.9e21
3 W20S65
(132",-868") 		E61-W67
(128) 		2.0 -0.7 -3.1e21
4 E36S17
(-538",-290") 		E42-E30
(12) 		0.2 -0.7 -5.1e19

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 19-Jun-2020 19:00 UT .