10 October 2019
⇐20191009 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191011⇒

NOAA
1 Active Region
12749

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 W03S20
(49",-428") 		E15-W20
(35) 		4.7 -0.4 -3.1e20
2 E17N68
(-103",850") 		E82-W89
(171) 		3.1 1.1 1.1e21
3 E26S04
(-424",-160") 		E40-E08
(32) 		1.9 0.0 1.0e19
4 W21N22
(316",266") 		E02-W32
(34) 		1.8 0.2 5.2e19
5 E25S62
(-191",-886") 		E42-W15
(57) 		1.0 -0.6 -2.9e20
6 W30S62
(223",-886") 		W21-W46
(25) 		0.5 -0.5 -1.2e20
7 W31S27
(445",-508") 		W28-W36
(8) 		0.2 -0.8 -3.9e19
8 W19N31
(267",416") 		W16-W22
(6) 		0.1 -0.7 -1.0e19
9 W33S19
(492",-398") 		W30-W34
(4) 		0.1 -0.7 -9.4e18
10 W37S21
(543",-426") 		W34-W40
(6) 		0.1 -0.9 -1.3e19
11 E12N07
(-196",20") 		E14-E10
(4) 		0.0 -1.6 -1.1e19
12 W40N16
(593",188") 		W37-W42
(5) 		0.0 -0.9 -6.7e18
13 E26N14
(-414",139") 		E27-E25
(2) 		0.0 0.9 5.7e18

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 10-Oct-2019 23:40 UT .