11 September 2019
20190910 Week Rotation Today Rotation Week 20190912

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Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07N69
(-39",844")
E64-W76
(140)
3.5 1.7 1.8e21
2 W02N24
(23",268")
E15-W18
(33)
3.3 -0.1 -2.9e19
3 E23S29
(-325",-555")
E36-E04
(32)
1.7 -0.8 -2.9e20
4 W16N48
(174",628")
W04-W22
(18)
0.4 0.7 5.5e19
5 E20S57
(-175",-854")
E29-E10
(19)
0.2 -0.7 -6.5e19
6 W31S24
(448",-485")
W26-W36
(10)
0.2 -0.7 -3.1e19
7 E38S19
(-558",-394")
E42-E34
(8)
0.1 -1.0 -3.2e19
8 E32S18
(-481",-396")
E34-E29
(5)
0.1 -0.7 -1.3e19
9 W27S32
(371",-588")
W23-W31
(8)
0.1 -0.6 -7.8e18
10 E35S06
(-549",-192")
E39-E33
(6)
0.1 -0.7 -8.1e18
11 W20N04
(331",-39")
W18-W22
(4)
0.1 -1.1 -1.0e19
12 E11N08
(-184",15")
E13-E10
(3)
0.0 -1.0 -6.5e18
13 W21S30
(298",-574")
W20-W22
(2)
0.0 -0.7 -5.1e18

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 11-Sep-2019 23:40 UT .