16 October 2012
⇐20121015 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121017⇒

NOAA
7 Active Regions
11586
11589
11590
11591
11592
11593
11594

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W24N25
(354",322") 		W15-W39
(24) 		2.5 -4.2 -3.2e33
2 W07S41
(91",-707") 		E01-W13
(14) 		0.3 1.5 2.6e32
3 E29N22
(-429",273") 		E33-E23
(10) 		0.2 -11.1 -8.9e32
4 W49N26
(649",370") 		W45-W54
(9) 		0.2 -0.4 -5.4e31
5 W51N37
(600",524") 		W48-W55
(7) 		0.0 -1.8 -8.0e31

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 16-Oct-2012 21:00 UT .