15 October 2012
⇐20121014 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121016⇒

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 W13N26
(189",328") 		E00-W22
(22) 		2.7 -4.7 -3.2e33
2 W42N38
(514",530") 		W25-W55
(30) 		1.7 0.2 1.7e32
3 W59S16
(792",-311") 		W50-W73
(23) 		0.6 1.3 1.1e33
4 E11S41
(-134",-702") 		E18-E01
(17) 		0.4 2.1 5.0e32
5 W14N59
(120",772") 		W06-W21
(15) 		0.2 -0.3 -3.9e31
6 W35N59
(285",781") 		W31-W37
(6) 		0.1 -0.5 -6.0e31
7 W26N23
(392",299") 		W23-W29
(6) 		0.1 -1.9 -5.7e31
8 E44N22
(-626",286") 		E47-E41
(6) 		0.1 -10.4 -5.0e32
9 W28N29
(397",385") 		W25-W31
(6) 		0.0 -2.2 -3.4e31

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 15-Oct-2012 21:00 UT .