29 August 2019
⇐20190828 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190830⇒

NOAA
0 Active Regions

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 W09N12
(153",90") 		E30-W33
(63) 		9.4 1.2 1.8e21
2 E20N66
(-129",820") 		E75-W28
(103) 		3.9 1.1 1.3e21
3 E04N34
(-61",432") 		E07-E02
(5) 		0.1 -1.5 -2.9e19
4 E10S27
(-142",-537") 		E12-E08
(4) 		0.0 -0.8 -6.4e18
5 E07S30
(-96",-574") 		E09-E04
(5) 		0.0 -1.5 -1.0e19

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 29-Aug-2019 23:40 UT .