1 April 2020
⇐20200331 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200402⇒

NOAA
1 Active Region
12759

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 E11S65
(-73",-823") 		E64-W69
(133) 		5.3 -0.7 -4.3e21
2 W17S07
(282",-10") 		E06-W29
(35) 		4.4 0.3 2.7e20
3 E21N65
(-142",909") 		E36-W10
(46) 		0.5 0.9 1.6e21

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 1-Apr-2020 19:30 UT .