14 September 2019
20190913 Week Rotation Today Rotation Week 20190915

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E02N69
(-14",842")
E86-W87
(173)
4.0 1.3 1.7e21
2 E17N08
(-281",25")
E31-W12
(43)
3.6 -0.3 -1.5e20
3 E30S54
(-284",-825")
E49-W10
(59)
2.4 -0.6 -5.6e20
4 W18S31
(249",-586")
W04-W26
(22)
2.0 -0.6 -2.5e20
5 W13S68
(83",-921")
E11-W30
(41)
0.2 -0.7 -1.1e20
6 W33N17
(504",180")
W30-W37
(7)
0.1 -1.0 -2.0e19
7 W01S07
(19",-232")
E02-W03
(5)
0.1 -0.9 -1.4e19
8 W31N07
(485",18")
W29-W33
(4)
0.1 -0.8 -9.8e18
9 E41S01
(-629",-109")
E44-E38
(6)
0.1 -0.5 -7.7e18
10 W36N02
(562",-65")
W33-W40
(7)
0.1 -0.8 -9.7e18
11 W13S41
(163",-708")
W10-W16
(6)
0.0 -0.9 -1.0e19
12 W03N19
(48",202")
W02-W05
(3)
0.0 1.6 9.7e18
13 E09N17
(-135",168")
E10-E07
(3)
0.0 -1.7 -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 14-Sep-2019 23:40 UT .