16 March 2012
⇐20120315 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120317⇒

NOAA
6 Active Regions
11429
11432
11433
11434
11435
11436

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W32S05
(509",22") 		W15-W48
(33) 		5.2 -2.0 -3.3e33
2 W33S39
(410",-522") 		W01-W56
(55) 		2.2 -1.6 -1.8e33
3 E61S29
(-742",-406") 		E65-E57
(8) 		0.2 4.9 1.0e33

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-Mar-2012 22:00 UT .