17 October 2020
⇐20201016 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201018⇒

NOAA
2 Active Regions
12776
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 E27N60
(-225",784") 		E46-W34
(80) 		5.5 1.0 1.6e21
2 W05S49
(52",-782") 		E54-W48
(102) 		4.3 -0.8 -8.7e20
3 W37N12
(569",118") 		W27-W47
(20) 		0.5 -1.1 -9.8e19
4 W27S04
(436",-154") 		W25-W29
(4) 		0.1 -1.4 -1.2e19
5 E26N54
(-247",725") 		E28-E23
(5) 		0.0 1.4 1.4e19

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 17-Oct-2020 19:30 UT .