12 May 2020
⇐20200511 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200513⇒

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 E23N04
(-372",105") 		E43-W07
(50) 		5.8 -0.1 -2.1e20
2 E19S53
(-187",-731") 		E25-W24
(49) 		5.3 -0.6 -2.5e21
3 W22S11
(355",-134") 		E11-W35
(46) 		3.7 0.1 1.1e20
4 W23N61
(181",853") 		E16-W36
(52) 		1.0 0.7 1.3e21
5 W55S69
(278",-876") 		W35-W78
(43) 		0.2 -0.7 -5.5e20
6 E51S14
(-723",-198") 		E55-E48
(7) 		0.0 -1.5 -5.0e19
7 E03N33
(-38",565") 		E04-E01
(3) 		0.0 -0.6 -8.4e18

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 12-May-2020 19:30 UT .