29 October 2020
⇐20201028 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201030⇒

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 E11S13
(-185",-288") 		E32-W19
(51) 		6.1 0.1 1.5e20
2 W39N71
(201",891") 		E61-W86
(147) 		1.8 0.9 7.6e20
3 E34S60
(-273",-867") 		E63-W17
(80) 		1.4 -0.6 -3.8e20
4 W37N05
(582",15") 		W34-W41
(7) 		0.1 -0.7 -1.7e19
5 E44S38
(-532",-638") 		E47-E41
(6) 		0.1 -1.9 -6.6e19
6 W11N05
(180",15") 		W09-W13
(4) 		0.1 1.2 1.4e19
7 E22N28
(-324",397") 		E25-E20
(5) 		0.1 1.2 1.4e19

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 29-Oct-2020 20:30 UT .