23 September 2016
⇐20160922 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160924⇒

NOAA
3 Active Regions
12593
12596
12592

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 E52N53
(-450",720") 		E83-W49
(132) 		9.3 1.1 1.4e34
2 W04S00
(58",-125") 		E03-W07
(10) 		0.9 2.4 3.8e32
3 E62S08
(-836",-192") 		E78-E49
(29) 		0.7 0.8 7.9e32
4 W34N58
(282",754") 		W32-W40
(8) 		0.3 0.3 1.2e32
5 W42S65
(270",-897") 		W36-W58
(22) 		0.1 -0.8 -8.1e32

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-Sep-2016 20:30 UT .