10 December 2017
⇐20171209 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171211⇒

NOAA
1 Active Region
12690

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 W08N57
(75",817") 		E65-W46
(111) 		6.6 0.7 4.7e33
2 E13S20
(-208",-325") 		E27-W03
(30) 		2.8 -0.8 -5.5e32
3 E44N13
(-659",223") 		E53-E31
(22) 		1.3 1.0 6.9e32
4 E45S69
(-249",-907") 		E65-E20
(45) 		0.6 -1.1 -2.9e33
5 E20S43
(-250",-658") 		E30-E11
(19) 		0.4 0.5 9.0e31
6 W17S76
(68",-945") 		E05-W42
(47) 		0.1 -1.6 -1.2e33
7 W19S42
(236",-644") 		W15-W21
(6) 		0.1 -0.9 -3.3e31
8 E26S51
(-274",-753") 		E30-E22
(8) 		0.1 -0.9 -4.9e31

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-Dec-2017 20:30 UT .