6 July 2021
⇐20210705 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210707⇒

NOAA
4 Active Regions
12835
12837
12839
12836

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 E22S16
(-337",-312") 		E44-W05
(49) 		7.6 -0.2 -2.1e20
2 W06N62
(49",809") 		E82-W40
(122) 		4.6 0.9 1.2e21
3 E51S23
(-678",-400") 		E64-E29
(35) 		2.7 -0.7 -5.3e20
4 W03S69
(17",-901") 		E38-W23
(61) 		0.6 -0.8 -2.3e20
5 W28N46
(309",643") 		W25-W31
(6) 		0.1 0.8 1.8e19

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 6-Jul-2021 19:30 UT .