3 August 2019
⇐20190802 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190804⇒

NOAA
0 Active Regions

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 E05N66
(-33",822") 		E75-W78
(153) 		5.1 1.2 1.9e21
2 W25N20
(376",231") 		W09-W40
(31) 		4.4 2.0 1.6e21
3 E20S61
(-156",-869") 		E52-W02
(54) 		0.8 -0.6 -2.1e20
4 E42S30
(-552",-533") 		E54-E31
(23) 		0.6 -1.0 -1.6e20
5 E20S16
(-307",-355") 		E23-E15
(8) 		0.1 -0.9 -2.0e19
6 W18S25
(267",-489") 		W15-W20
(5) 		0.0 -0.9 -8.2e18

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 3-Aug-2019 23:30 UT .