12 March 2017
⇐20170311 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170313⇒

NOAA
0 Active Regions

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 W06N49
(71",802") 		E44-W27
(71) 		4.9 0.6 2.7e33
2 W40S71
(199",-878") 		E74-W89
(163) 		2.1 -1.5 -7.3e33
3 E34S20
(-516",-232") 		E39-E30
(9) 		0.4 0.6 7.6e31

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 12-Mar-2017 20:30 UT .