16 January 2018
⇐20180115 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180117⇒

NOAA
1 Active Region
12696

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 E16N13
(-259",298") 		E34-W08
(42) 		3.4 -3.0 -2.6e33
2 E20S71
(-108",-898") 		E49-W37
(86) 		1.4 -1.2 -3.7e33
3 E42S03
(-648",8") 		E47-E36
(11) 		0.4 -0.7 -1.2e32
4 W10N05
(170",166") 		W08-W13
(5) 		0.1 -1.8 -2.5e31
5 W61S73
(253",-916") 		W64-W64
(3.5e04) 		-1.1 4.9 1.7e33

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 16-Jan-2018 20:30 UT .