2 June 2018
⇐20180601 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180603⇒

NOAA
2 Active Regions
12712
12710

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 E06N05
(-103",90") 		E23-W23
(46) 		6.1 -0.1 -1.6e32
2 W35S17
(516",-268") 		W07-W65
(58) 		5.7 -1.0 -2.3e33
3 W03N59
(22",813") 		E29-W31
(60) 		4.5 0.9 4.2e33
4 W35S74
(150",-907") 		E35-W62
(97) 		0.5 -1.0 -2.9e33
5 E01S39
(-8",-597") 		E03-W03
(6) 		0.1 -0.5 -1.3e31

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-Jun-2018 15:30 UT .