22 March 2018
⇐20180321 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180323⇒

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 W17S50
(175",-667") 		E72-W45
(117) 		12.0 -1.0 -6.3e33
2 E57N20
(-763",386") 		E64-E50
(14) 		0.2 1.4 3.3e32
3 W36S09
(567",-54") 		W34-W38
(4) 		0.1 -0.6 -1.4e31
4 W55S26
(715",-354") 		W52-W58
(6) 		0.1 -0.9 -4.3e31

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 22-Mar-2018 20:30 UT .