19 June 2012
⇐20120618 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120620⇒

NOAA
6 Active Regions
11504
11505
11506
11507
11508
11510

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E35S17
(-517",-292") 		E44-E28
(16) 		0.4 7.7 1.4e33
2 W21N28
(299",422") 		W10-W30
(20) 		0.3 -5.8 -6.1e32

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-2012 23:00 UT .