23 June 2016
⇐20160622 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160624⇒

NOAA
4 Active Regions
12553
12556
12557
12558

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 W17N24
(249",361") 		E04-W28
(32) 		3.2 0.3 2.8e32
2 W14S66
(95",-876") 		E65-W48
(113) 		1.7 0.3 1.0e33
3 W50S20
(684",-338") 		W40-W64
(24) 		0.6 2.6 1.2e33
4 E57N22
(-735",332") 		E59-E55
(4) 		0.2 -2.3 -4.2e32
5 E27N76
(-102",909") 		E39-E31
(8) 		0.1 -2.9 -1.5e33

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-Jun-2016 23:20 UT .