19 June 2016
⇐20160618 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160620⇒

NOAA
4 Active Regions
12553
12555
12556
12557

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 E16S23
(-238",-391") 		E32-W12
(44) 		2.8 -0.8 -6.8e32
2 E42N21
(-596",315") 		E55-E32
(23) 		0.9 -1.2 -5.6e32
3 E35S68
(-205",-883") 		E67-W17
(84) 		0.8 0.3 1.1e33
4 W31N74
(130",904") 		W09-W47
(38) 		0.2 -1.2 -1.4e33

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 19-Jun-2016 23:20 UT .