19 January 2015
⇐20150118 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150120⇒

NOAA
7 Active Regions
12259
12261
12263
12265
12266
12258
12264

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E28N46
(-317",746") 		E53-W08
(61) 		5.2 0.6 2.8e33
2 E38S64
(-258",-848") 		E71-W23
(94) 		3.9 -0.9 -5.7e33
3 W58N10
(817",214") 		W51-W66
(15) 		0.2 -2.9 -7.8e32
4 W61N04
(855",109") 		W56-W66
(10) 		0.1 -0.8 -1.3e32
5 W40S28
(562",-395") 		W36-W46
(10) 		0.1 -6.8 -4.1e32

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 19-Jan-2015 22:35 UT .