11 May 2018
⇐20180510 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180512⇒

NOAA
2 Active Regions
12709
12708

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 W08S16
(127",-211") 		E19-W25
(44) 		3.4 -0.2 -1.3e32
2 E35S21
(-509",-301") 		E44-E17
(27) 		2.4 -0.4 -4.0e32
3 E23N67
(-147",890") 		E47-W08
(55) 		0.6 0.8 1.5e33
4 W17S77
(64",-913") 		E24-W46
(70) 		0.4 -1.2 -2.1e33

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 11-May-2018 15:30 UT .