15 October 2020
⇐20201014 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201016⇒

NOAA
3 Active Regions
12776
12774
12775

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 E05N69
(-30",861") 		E77-W69
(146) 		3.1 1.2 1.3e21
2 E16S63
(-118",-897") 		E40-W23
(63) 		1.2 -0.6 -3.5e20
3 E29S24
(-428",-475") 		E41-E18
(23) 		1.1 -1.3 -3.1e20
4 W21S15
(337",-342") 		W09-W30
(21) 		0.8 -1.2 -1.7e20
5 W34S66
(219",-907") 		W23-W47
(24) 		0.2 -0.4 -4.4e19
6 W25N39
(315",541") 		W21-W29
(8) 		0.1 -0.7 -1.4e19
7 E53S61
(-366",-869") 		E64-E40
(24) 		0.1 -0.6 -3.5e19

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-2020 15:05 UT .