12 October 2020
⇐20201011 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201013⇒

NOAA
2 Active Regions
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 W21N08
(343",38") 		E06-W37
(43) 		5.1 -0.3 -2.4e20
2 W14N69
(82",857") 		E87-W73
(160) 		2.8 1.1 1.0e21
3 E23N03
(-375",-44") 		E32-E13
(19) 		2.0 -0.2 -6.7e19
4 W22S64
(158",-903") 		E23-W51
(74) 		0.9 -0.6 -2.8e20
5 W32N12
(495",112") 		W23-W40
(17) 		0.5 0.7 6.3e19
6 E12N06
(-191",9") 		E14-E07
(7) 		0.2 -0.9 -2.4e19
7 W37N06
(579",23") 		8
(1.7e03) 		-0.6 3.4 5.8e19
8 E20N21
(-304",251") 		E21-E17
(4) 		0.1 -1.4 -1.4e19
9 E02N22
(-31",272") 		E03-W00
(3) 		0.1 0.9 8.1e18
10 E38S57
(-321",-846") 		E44-E32
(12) 		0.1 -1.0 -2.2e19

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 12-Oct-2020 23:30 UT .