26 February 2020
⇐20200225 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200227⇒

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 E14S64
(-106",-813") 		E83-W36
(119) 		5.9 -0.8 -4.7e21
2 E17S19
(-274",-206") 		E29-W10
(39) 		5.0 -0.4 -4.2e20
3 W12S24
(180",-279") 		E04-W20
(24) 		1.7 -0.3 -1.0e20
4 E22N18
(-348",403") 		E31-E05
(26) 		1.4 -0.1 -6.5e19
5 E48S07
(-719",-31") 		E51-E46
(5) 		0.1 -0.8 -2.6e19
6 W13N29
(195",566") 		W12-W15
(3) 		0.0 -0.5 -1.0e19

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 26-Feb-2020 20:30 UT .