6 April 2019
⇐20190405 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190407⇒

NOAA
1 Active Region
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 E15S62
(-115",-798") 		E53-W75
(128) 		6.4 -0.9 -5.3e21
2 E17S12
(-274",-105") 		E29-W09
(38) 		2.5 -0.7 -4.0e20
3 W40S22
(574",-291") 		W39-W42
(3) 		0.0 -1.2 -2.7e19

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 6-Apr-2019 19:30 UT .