2 January 2020
⇐20200101 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200103⇒

NOAA
1 Active Region
12753

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 W01S41
(13",-603") 		E42-W52
(94) 		23.0 -0.3 -2.8e21
2 W16N72
(82",941") 		E21-W38
(59) 		0.3 1.0 1.7e21
3 E44S37
(-543",-558") 		E44-E43
(1) 		0.3 -1.4 -3.3e20
4 E19N27
(-290",489") 		E24-E14
(10) 		0.3 -0.7 -8.2e19
5 W28N04
(463",115") 		W24-W32
(8) 		0.1 -0.7 -2.5e19
6 E53N07
(-778",150") 		E57-E50
(7) 		0.1 -1.0 -5.7e19
7 W12N42
(147",687") 		W07-W16
(9) 		0.1 -0.6 -2.5e19
8 W61S62
(402",-847") 		W56-W70
(14) 		0.1 -1.3 -2.8e20
9 W03S24
(45",-348") 		W01-W04
(3) 		0.0 -1.0 -9.1e18

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 2-Jan-2020 20:30 UT .