16 July 2020
⇐20200715 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200717⇒

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 W10N68
(64",843") 		E47-W74
(121) 		3.7 1.0 1.3e21
2 W28S57
(238",-829") 		E00-W52
(52) 		1.6 -0.8 -5.0e20
3 W36S18
(526",-346") 		W32-W40
(8) 		0.1 -0.5 -1.3e19
4 E23N26
(-328",346") 		E25-E20
(5) 		0.1 -0.7 -1.0e19
5 W28N13
(428",142") 		W26-W29
(3) 		0.1 -2.0 -1.9e19
6 W30S24
(428",-445") 		W28-W31
(3) 		0.0 -2.3 -1.7e19

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 16-Jul-2020 19:00 UT .