5 October 2021
⇐20211004 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211006⇒

NOAA
3 Active Regions
12880
12882
12878

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 E33N61
(-250",792") 		E32-W37
(69) 		3.1 0.6 5.4e20
2 E20N02
(-331",-75") 		E29-E04
(25) 		1.6 0.3 8.8e19
3 W00S68
(1",-924") 		E20-W28
(48) 		0.4 -0.6 -1.4e20
4 E20N26
(-297",322") 		E25-E15
(10) 		0.2 5.8 2.0e20
5 E47S16
(-678",-338") 		E51-E44
(7) 		0.1 0.6 7.4e18
6 E27N02
(-439",-57") 		E28-E26
(2) 		0.0 -1.0 -7.1e18

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 5-Oct-2021 19:30 UT .