14 April 2021
⇐20210413 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210415⇒

NOAA
1 Active Region
12814

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 E26S53
(-255",-715") 		E51-W29
(80) 		10.0 -1.2 -2.9e21
2 W24S08
(388",-47") 		W11-W33
(22) 		1.8 -1.2 -3.6e20
3 E21N09
(-342",238") 		E25-E16
(9) 		0.1 -1.6 -2.7e19
4 E65S07
(-864",-76") 		E69-E62
(7) 		0.1 -0.7 -1.9e19
5 E23N03
(-378",134") 		E25-E21
(4) 		0.0 2.8 2.1e19

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 14-Apr-2021 19:31 UT .