30 November 2018
⇐20181129 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181201⇒

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 E07S19
(-106",-339") 		E43-W31
(74) 		9.7 -0.1 -1.3e20
2 W36N23
(534",368") 		W00-W56
(56) 		6.2 1.0 2.8e21
3 E24N66
(-166",880") 		E57-W15
(72) 		2.0 0.8 3.0e21
4 E57S16
(-780",-284") 		E72-E48
(24) 		0.6 -0.5 -3.1e20
5 E41N08
(-631",117") 		E45-E37
(8) 		0.2 -0.7 -6.6e19
6 E65S03
(-881",-53") 		E73-E56
(17) 		0.2 -0.6 -1.7e20
7 W22S75
(93",-944") 		W11-W31
(20) 		0.1 -0.9 -5.8e20

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 30-Nov-2018 20:30 UT .