2 January 2017
⇐20170101 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170103⇒

NOAA
2 Active Regions
12622
12623

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 E22S42
(-268",-622") 		E55-W54
(109) 		17.3 -1.4 -1.2e34
2 W33N64
(230",897") 		W03-W56
(53) 		1.0 0.6 2.0e33
3 W20S12
(328",-149") 		W16-W24
(8) 		0.4 -1.5 -1.6e32
4 W13S23
(198",-327") 		W06-W17
(11) 		0.2 -2.1 -9.8e31
5 W29N39
(370",657") 		W25-W34
(9) 		0.0 -0.7 -2.0e31

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 2-Jan-2017 20:30 UT .