25 November 2018
⇐20181124 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181126⇒

NOAA
1 Active Region
12728

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 E32N04
(-514",51") 		E51-E17
(34) 		4.4 1.2 1.7e21
2 W28N64
(199",865") 		E57-W48
(105) 		2.6 0.8 3.9e21
3 W28S60
(226",-857") 		E41-W39
(80) 		2.0 -0.7 -2.5e21
4 W29S09
(471",-172") 		W25-W35
(10) 		0.7 -1.4 -2.9e20

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 25-Nov-2018 20:30 UT .