29 June 2019
20190628 Week Rotation Today Rotation Week 20190630

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19N17
(301",237")
E05-W35
(40)
4.0 0.1 7.0e19
2 W24N67
(145",855")
E56-W59
(115)
2.7 1.2 1.2e21
3 E32S09
(-499",-190")
E40-E19
(21)
1.5 -1.8 -5.1e20
4 W15S19
(225",-347")
W04-W23
(19)
1.4 -0.0 -1.5e18
5 W40S64
(259",-865")
69
(4.2e04)
-0.5 2.7 1.1e21
6 W29N42
(341",601")
W17-W33
(16)
0.4 -0.5 -3.8e19
7 W38S13
(569",-252")
W35-W42
(7)
0.1 -1.5 -2.5e19
8 W31N32
(410",470")
W29-W34
(5)
0.1 -0.6 -9.9e18
9 W17S54
(168",-784")
W13-W22
(9)
0.1 -0.4 -6.8e18
10 E35S50
(-343",-748")
E36-E31
(5)
0.0 -0.5 -7.1e18
11 E44S68
(-245",-887")
E52-E42
(10)
0.0 -0.8 -2.3e19
12 E45S61
(-324",-840")
E48-E39
(9)
0.0 -1.6 -3.3e19
13 W27S11
(420",-218")
W26-W28
(2)
0.0 -0.7 -4.7e18

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-Jun-2019 22:55 UT .