29 November 2018
⇐20181128 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181130⇒

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 W01S13
(21",-240") 		E44-W40
(84) 		11.8 0.4 1.0e21
2 E33N66
(-211",885") 		E58-W16
(74) 		1.4 0.9 2.8e21
3 E10N35
(-135",542") 		E18-W03
(21) 		1.3 0.8 3.9e20
4 W09N29
(127",455") 		E00-W14
(14) 		0.7 0.8 1.6e20
5 E35S33
(-471",-547") 		E38-E33
(5) 		0.0 -1.6 -3.1e19

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 29-Nov-2018 20:30 UT .