5 March 2012
⇐20120304 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120306⇒

NOAA
6 Active Regions
11423
11427
11428
11429
11430
11431

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19S48
(-213",-640") 		E30-W23
(53) 		5.4 3.1 8.3e33
2 W44S28
(595",-370") 		W36-W50
(14) 		0.5 -0.8 -2.3e32
3 W20N36
(268",656") 		W09-W28
(19) 		0.3 0.7 1.3e32

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 5-Mar-2012 22:00 UT .