1 November 2020
⇐20201031 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201102⇒

NOAA
2 Active Regions
12778
12779

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 E08S23
(-118",-450") 		E47-W41
(88) 		27.9 -0.2 -7.9e20
2 W43S02
(657",-82") 		10
(4.7e03) 		0.6 4.6 2.1e20
3 E40S22
(-574",-420") 		E45-E35
(10) 		0.2 -0.8 -3.0e19
4 W34S24
(496",-454") 		W30-W38
(8) 		0.1 -0.5 -1.2e19
5 E19S16
(-297",-327") 		E20-E16
(4) 		0.1 3.2 2.8e19

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-Nov-2020 20:30 UT .