15 October 2021
⇐20211014 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211016⇒

NOAA
3 Active Regions
12882
12885
12884

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 E28S36
(-364",-629") 		E48-W08
(56) 		10.1 -1.1 -2.5e21
2 E06N68
(-40",849") 		E87-W84
(171) 		3.7 0.9 1.1e21
3 E09N31
(-123",414") 		E18-W07
(25) 		1.5 3.1 8.0e20
4 W54S11
(771",-232") 		W51-W60
(9) 		0.2 -0.5 -3.0e19
5 W29N36
(375",499") 		W26-W30
(4) 		0.0 -1.5 -1.3e19

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 15-Oct-2021 23:30 UT .