23 October 2014
⇐20141022 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141024⇒

NOAA
7 Active Regions
12187
12192
12193
12194
12195
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 W33N57
(283",771") 		W03-W59
(56) 		3.6 0.3 1.2e33
2 E44N57
(-366",773") 		E61-W11
(72) 		2.9 0.2 6.7e32
3 W36S08
(561",-205") 		W17-W52
(35) 		1.3 10.7 5.5e33
4 E04N51
(-42",697") 		E06-E01
(5) 		0.1 -2.3 -9.7e31

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 23-Oct-2014 23:35 UT .