9 March 2012
⇐20120308 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120310⇒

NOAA
5 Active Regions
11428
11429
11430
11431
11432

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W45S50
(437",-681") 		E63-W70
(133) 		3.7 3.0 1.0e34
2 E66S07
(-876",-59") 		E75-E54
(21) 		0.8 -0.6 -7.5e32
3 E62S36
(-692",-519") 		E69-E51
(18) 		0.6 -0.4 -3.6e32
4 E05S39
(-70",-517") 		E08-E01
(7) 		0.2 -1.0 -5.5e31

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 9-Mar-2012 22:00 UT .