1 March 2013
⇐20130228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130302⇒

NOAA
6 Active Regions
11680
11681
11682
11683
11684
11685

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29N07
(470",231") 		W18-W38
(20) 		1.8 -1.0 -6.0e32
2 E40S29
(-544",-391") 		E51-E28
(23) 		1.4 1.0 7.1e32
3 E47N37
(-564",648") 		E67-E25
(42) 		0.8 -0.5 -5.8e32
4 E01N18
(-23",411") 		E07-W04
(11) 		0.4 -7.8 -9.0e32
5 W03N09
(43",265") 		E01-W05
(6) 		0.1 -2.0 -4.9e31
6 W26S35
(347",-466") 		W24-W30
(6) 		0.1 -1.6 -5.0e31

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-Mar-2013 22:00 UT .