26 October 2020
⇐20201025 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201027⇒

NOAA
1 Active Region
12776

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 W05S08
(88",-209") 		E19-W31
(50) 		4.0 0.0 2.6e18
2 W22N68
(135",862") 		E57-W55
(112) 		3.6 1.1 1.5e21
3 W36N43
(409",615") 		W14-W52
(38) 		1.1 0.7 1.8e20
4 W06S66
(43",-914") 		E31-W37
(68) 		0.9 -0.6 -2.5e20
5 W53N32
(654",475") 		W44-W65
(21) 		0.5 0.9 1.2e20
6 W34S12
(525",-264") 		W32-W36
(4) 		0.1 -0.7 -7.2e18

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 26-Oct-2020 20:30 UT .