2 July 2020
⇐20200701 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200703⇒

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 W01S03
(16",-97") 		E33-W41
(74) 		6.7 0.1 8.1e19
2 W05N67
(33",849") 		E78-W65
(143) 		2.9 1.0 9.9e20
3 W18N37
(228",529") 		E09-W33
(42) 		2.8 0.5 2.6e20
4 W13S65
(90",-877") 		E19-W57
(76) 		1.2 -1.0 -5.2e20
5 W42N23
(589",329") 		W37-W47
(10) 		0.1 -0.5 -1.6e19
6 E43S69
(-232",-892") 		E55-E38
(17) 		0.1 -0.9 -7.4e19

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 2-Jul-2020 19:00 UT .