5 March 2019
⇐20190304 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190306⇒

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 W22S20
(339",-226") 		E09-W39
(48) 		8.1 -0.3 -6.1e20
2 W12S71
(64",-868") 		E46-W81
(127) 		3.3 -1.4 -6.9e21
3 W42N12
(631",292") 		W38-W48
(10) 		0.2 -0.5 -5.8e19
4 E21S17
(-336",-172") 		E24-E19
(5) 		0.1 -0.9 -1.6e19
5 W48S41
(541",-567") 		W43-W53
(10) 		0.1 -0.6 -3.0e19

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 5-Mar-2019 20:30 UT .