7 January 2019
⇐20190106 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190108⇒

NOAA
1 Active Region
12732

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 E04S62
(-28",-832") 		E80-W32
(112) 		4.2 -0.7 -3.2e21
2 E16S20
(-260",-274") 		E25-W00
(25) 		3.6 -0.2 -1.4e20
3 E34N63
(-250",892") 		E59-W09
(68) 		1.1 1.1 3.8e21
4 W44N05
(681",138") 		W36-W51
(15) 		0.5 -0.9 -2.2e20
5 E07S41
(-84",-589") 		E12-E00
(12) 		0.3 -0.6 -7.7e19
6 W15S02
(248",20") 		W11-W17
(6) 		0.2 -1.3 -4.5e19
7 W45S02
(690",9") 		W42-W48
(6) 		0.1 -1.0 -4.3e19
8 E60S16
(-814",-240") 		E63-E56
(7) 		0.0 -0.6 -2.6e19

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 7-Jan-2019 20:30 UT .