22 October 2014
⇐20141021 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141023⇒

NOAA
7 Active Regions
12187
12192
12193
12194
12189
12190
12191

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W47N53
(421",733") 		E10-W63
(73) 		4.6 0.2 9.6e32
2 W23S09
(368",-236") 		W02-W37
(35) 		2.0 13.3 7.4e33
3 E44N50
(-433",696") 		E59-E21
(38) 		1.6 0.5 7.9e32
4 W05S13
(84",-300") 		W04-W07
(3) 		0.1 -5.4 -8.3e31

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 22-Oct-2014 23:35 UT .