3 October 2020
⇐20201002 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201004⇒

NOAA
1 Active Region
12773

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 W11N05
(187",-25") 		E31-W47
(78) 		8.2 0.1 8.7e19
2 W17S58
(146",-862") 		E51-W43
(94) 		2.1 -0.3 -2.7e20
3 W31N31
(420",411") 		W20-W38
(18) 		0.5 -1.8 -1.9e20
4 E54N75
(-195",907") 		E84-E03
(81) 		0.5 0.8 2.2e20
5 E08S20
(-120",-434") 		E10-E06
(4) 		0.0 -1.5 -9.6e18
6 E44N12
(-649",124") 		E46-E41
(5) 		0.0 -0.8 -5.8e18

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 3-Oct-2020 23:30 UT .