12 April 2021
⇐20210411 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210413⇒

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 E42S51
(-402",-698") 		E69-E01
(68) 		5.2 -1.1 -1.6e21
2 E19S02
(-312",50") 		E38-W03
(41) 		4.2 -0.7 -5.1e20
3 E30S04
(-472",25") 		E32-E28
(4) 		0.0 1.2 9.6e18
4 E38S19
(-558",-242") 		E40-E35
(5) 		0.0 -4.5 -3.4e19

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-Apr-2021 23:30 UT .