29 December 2019
⇐20191228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191230⇒

NOAA
2 Active Regions
12753
12754

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 E07S63
(-53",-848") 		E74-W56
(130) 		4.6 -0.8 -4.6e21
2 W19S19
(304",-275") 		E07-W34
(41) 		2.5 -0.2 -1.3e20
3 W17N14
(282",274") 		W02-W27
(25) 		2.5 0.1 4.7e19
4 E16S12
(-265",-162") 		E25-E03
(22) 		2.2 -0.1 -6.6e19
5 E03N10
(-58",208") 		E13-W11
(24) 		1.4 -0.2 -6.6e19
6 E26N68
(-159",922") 		E55-W26
(81) 		0.9 1.0 3.3e21
7 E52S44
(-550",-660") 		E56-E47
(9) 		0.1 -1.0 -9.7e19
8 W37S02
(595",-3") 		W36-W40
(4) 		0.1 -0.7 -1.5e19
9 W50S04
(748",-36") 		W48-W52
(4) 		0.0 -0.4 -1.3e19
10 E50S01
(-753",18") 		E52-E48
(4) 		0.0 -0.9 -2.7e19
11 W33S09
(522",-117") 		W31-W34
(3) 		0.0 -1.0 -1.5e19

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 29-Dec-2019 20:30 UT .