10 April 2019
⇐20190409 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190411⇒

NOAA
2 Active Regions
12738
12737

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 W16S61
(126",-789") 		E85-W51
(136) 		6.6 -0.8 -5.1e21
2 W11S14
(175",-127") 		E12-W29
(41) 		2.5 0.1 4.0e19
3 E17N62
(-133",887") 		E37-W05
(42) 		0.9 1.0 2.4e21
4 W08S29
(112",-380") 		W06-W09
(3) 		0.1 -1.0 -1.6e19
5 W06S22
(87",-264") 		W02-W08
(6) 		0.0 -3.6 -2.9e19

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 10-Apr-2019 19:30 UT .