29 December 2015
⇐20151228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151230⇒

NOAA
3 Active Regions
12472
12473
12475

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 E23N43
(-278",702") 		E80-W46
(126) 		14.9 1.4 1.4e34
2 W38S26
(544",-402") 		W28-W49
(21) 		0.6 1.1 3.4e32
3 E10S77
(-38",-942") 		E71-W54
(125) 		0.5 -0.6 -1.3e33

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 29-Dec-2015 21:35 UT .