25 December 2016
⇐20161224 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161226⇒

NOAA
1 Active Region
12619

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 W07N61
(57",871") 		E61-W41
(102) 		3.6 0.8 4.1e33
2 W44S25
(613",-383") 		W16-W70
(54) 		2.6 1.6 2.4e33
3 E22S72
(-115",-916") 		E57-W25
(82) 		0.6 -1.3 -2.1e33
4 E53S08
(-775",-109") 		E59-E45
(14) 		0.4 0.9 2.5e32
5 E40S05
(-621",-61") 		E45-E34
(11) 		0.3 0.7 8.9e31

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 25-Dec-2016 20:30 UT .