5 May 2018
⇐20180504 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180506⇒

NOAA
1 Active Region
12708

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 W14N08
(236",186") 		E37-W44
(81) 		10.6 -1.3 -3.1e33
2 W26N59
(218",843") 		E46-W58
(104) 		3.2 0.8 4.6e33
3 E06S73
(-27",-890") 		E75-W64
(139) 		1.3 -1.5 -4.7e33
4 W62S71
(276",-886") 		W63-W78
(15) 		0.0 -1.2 -3.3e32

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 5-May-2018 15:30 UT .