11 April 2017
⇐20170410 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170412⇒

NOAA
2 Active Regions
12650
12648

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 W35S69
(202",-858") 		E82-W86
(168) 		2.6 -1.4 -7.1e33
2 E19N59
(-162",868") 		E63-W54
(117) 		2.4 0.9 4.0e33
3 E57S20
(-754",-277") 		E73-E44
(29) 		0.7 0.6 3.8e32
4 W03N14
(51",327") 		W00-W05
(5) 		0.0 5.3 5.8e31

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-Apr-2017 19:30 UT .