18 April 2020
⇐20200417 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200419⇒

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 E09S11
(-142",-97") 		E41-W23
(64) 		13.6 0.1 3.1e20
2 E01S63
(-6",-807") 		E64-W46
(110) 		6.0 -1.1 -6.4e21
3 W15N66
(98",906") 		E39-W52
(91) 		0.9 1.0 3.0e21
4 E41S10
(-617",-105") 		E43-E38
(5) 		0.1 -1.0 -2.8e19
5 E23N23
(-347",453") 		E25-E21
(4) 		0.1 -2.1 -3.9e19
6 E37S18
(-550",-228") 		E39-E35
(4) 		0.0 -0.7 -1.1e19

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 18-Apr-2020 19:30 UT .