3 September 2019
⇐20190902 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190904⇒

NOAA
1 Active Region
12748

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 E10S23
(-157",-483") 		E27-W20
(47) 		10.0 -0.5 -8.6e20
2 W08N69
(44",841") 		E90-W56
(146) 		4.3 1.4 1.9e21
3 E31S63
(-218",-890") 		E55-E11
(44) 		0.3 -0.2 -4.3e19
4 W07S65
(46",-908") 		E02-W09
(11) 		0.2 -1.1 -1.0e20
5 W27N15
(412",147") 		W24-W29
(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 3-Sep-2019 23:40 UT .