8 January 2012
⇐20120107 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120109⇒

NOAA
7 Active Regions
11388
11389
11391
11392
11393
11394
11395

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W41S22
(594",-315") 		W34-W49
(15) 		1.0 -2.3 -1.2e33
2 E20S24
(-309",-346") 		E27-E11
(16) 		1.0 5.0 1.5e33
3 W08S26
(129",-376") 		W04-W13
(9) 		0.5 0.8 1.1e32

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 8-Jan-2012 22:00 UT .