26 December 2017
⇐20171225 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171227⇒

NOAA
1 Active Region
12692

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 W17S54
(163",-766") 		E54-W46
(100) 		5.0 -1.3 -4.9e33
2 E43N33
(-557",561") 		E66-E20
(46) 		2.0 1.2 1.9e33
3 E25N12
(-397",243") 		E38-E11
(27) 		1.6 0.6 2.6e32
4 E34N60
(-273",864") 		E70-E34
(36) 		1.0 0.6 1.3e33
5 W57S02
(819",-20") 		W45-W73
(28) 		0.5 -1.3 -6.0e32
6 E10S38
(-129",-570") 		E17-W00
(17) 		0.4 -0.6 -9.1e31
7 W30S06
(492",-64") 		W29-W32
(3) 		0.1 -0.9 -1.4e31
8 E07S21
(-103",-321") 		E08-E04
(4) 		0.0 -1.1 -1.3e31

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 26-Dec-2017 20:30 UT .