20 March 2015
⇐20150319 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150321⇒

NOAA
6 Active Regions
12297
12299
12302
12303
12304
12301

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W36S62
(264",-804") 		E87-W71
(158) 		5.6 -1.0 -7.1e33
2 E13S21
(-208",-234") 		E29-W10
(39) 		2.2 4.9 2.4e33
3 W32N52
(313",819") 		W08-W48
(40) 		1.1 1.0 1.8e33

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 20-Mar-2015 22:35 UT .