22 May 2016
⇐20160521 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160523⇒

NOAA
2 Active Regions
12546
12547

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W52N38
(592",598") 		W18-W69
(51) 		2.8 0.0 1.4e32
2 E21S17
(-321",-245") 		E30-E02
(28) 		0.8 -2.3 -5.1e32
3 E53N23
(-693",394") 		E57-E45
(12) 		0.6 -1.4 -7.5e32
4 E43S72
(-201",-893") 		E68-E33
(35) 		0.4 0.7 1.1e33
5 W14N69
(85",894") 		E03-W30
(33) 		0.2 -1.2 -7.1e32
6 W13N59
(109",828") 		W06-W23
(17) 		0.1 -2.2 -4.0e32
7 W46S14
(663",-208") 		W42-W49
(7) 		0.1 -0.5 -4.0e31
8 W39N71
(190",905") 		W46-W62
(16) 		0.1 -1.6 -1.1e33

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-May-2016 23:17 UT .