17 May 2020
⇐20200516 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200518⇒

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 W22S51
(222",-710") 		E42-W47
(89) 		10.3 -0.4 -2.6e21
2 E15N11
(-239",212") 		E33-W15
(48) 		6.5 -0.1 -1.1e20
3 E18S19
(-283",-277") 		E29-E05
(24) 		1.7 -0.0 -1.6e19
4 E07N68
(-40",895") 		E65-W32
(97) 		1.0 0.9 2.5e21
5 E62S62
(-393",-829") 		E76-E48
(28) 		0.1 -1.1 -5.8e20
6 W44S54
(394",-748") 		W37-W49
(12) 		0.1 -0.9 -1.5e20

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 17-May-2020 19:30 UT .