1 September 2010
⇐20100831 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20100902⇒

NOAA
4 Active Regions
11101
11102
11103
11104

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E11N01
(-186",-101") 		E21-W04
(25) 		1.6 0.4 1.3e32
2 W59N46
(564",643") 		W51-W70
(19) 		0.2 -1.2 -3.9e32
3 E03S20
(-39",-429") 		E04-W01
(5) 		0.1 -0.9 -3.1e31
4 E16S14
(-253",-334") 		E18-E12
(6) 		0.1 -0.7 -1.4e31

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 1-Sep-2010 23:30 UT .