31 December 2016
⇐20161230 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170101⇒

NOAA
1 Active Region
12622

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 E38S22
(-556",-335") 		E54-E14
(40) 		9.9 -1.3 -5.8e33
2 W07N60
(61",867") 		E55-W69
(124) 		3.2 0.7 3.1e33
3 E45S67
(-273",-883") 		E69-W38
(107) 		1.9 -1.0 -5.8e33
4 W37S10
(586",-127") 		W29-W48
(19) 		1.4 0.4 2.4e32
5 E09S10
(-149",-121") 		E12-E05
(7) 		0.3 -1.8 -1.1e32
6 E12N24
(-181",436") 		E13-E09
(4) 		0.0 -1.4 -1.5e31

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 31-Dec-2016 20:30 UT .