21 June 2020
⇐20200620 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200622⇒

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 E08S60
(-63",-832") 		E71-W69
(140) 		3.0 -0.7 -2.8e21
2 E27S13
(-425",-241") 		E40-E08
(32) 		2.6 -0.5 -4.0e20
3 E11N03
(-181",23") 		E20-W03
(23) 		2.4 0.1 4.2e19
4 W20N71
(106",882") 		E68-W78
(146) 		1.4 1.1 4.0e21
5 E14N15
(-215",216") 		E16-E11
(5) 		0.1 -1.4 -2.9e19
6 W24S34
(313",-554") 		W21-W26
(5) 		0.1 -0.5 -1.6e19

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 21-Jun-2020 19:00 UT .