10 March 2018
⇐20180309 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180311⇒

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 E32N12
(-505",303") 		E60-W06
(66) 		4.0 -2.0 -3.0e33
2 W01S74
(3",-886") 		E77-W86
(163) 		2.0 -1.1 -4.0e33
3 W23N65
(161",914") 		E16-W31
(47) 		0.7 0.9 2.6e33
4 W50N53
(451",809") 		W35-W75
(40) 		0.7 0.9 2.4e33
5 W07S03
(126",69") 		W06-W09
(3) 		0.0 -7.0 -6.0e31

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 10-Mar-2018 20:30 UT .