18 November 2019
⇐20191117 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191119⇒

NOAA
1 Active Region
12752

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 W21N17
(327",246") 		E14-W47
(61) 		7.9 0.9 1.2e21
2 E15N64
(-106",858") 		E62-W77
(139) 		3.5 1.1 1.4e21
3 E28N00
(-456",-31") 		E39-E14
(25) 		1.5 0.1 2.0e19
4 E16S22
(-248",-397") 		E23-E06
(17) 		0.5 0.7 6.0e19
5 E17S72
(-84",-936") 		E43-W11
(54) 		0.3 -0.7 -1.1e20
6 W38S70
(201",-925") 		W26-W51
(25) 		0.0 0.5 1.1e19

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 18-Nov-2019 23:40 UT .