2 September 2018
⇐20180901 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180903⇒

NOAA
0 Active Regions

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 W19N68
(115",835") 		E71-W52
(123) 		4.0 1.1 6.0e21
2 E21S08
(-331",-242") 		E32-W03
(35) 		3.8 -1.0 -9.6e20
3 E15N31
(-212",391") 		E19-E12
(7) 		0.1 -1.0 -1.7e19

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 2-Sep-2018 23:10 UT .