9 October 2018
20181008 Week Rotation Today Rotation Week 20181010

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E26S23
(-391",-460")
E45-E04
(41)
7.6 -0.8 -2.6e21
2 W17N72
(90",876")
E85-W53
(138)
2.5 1.2 5.4e21
3 W62N17
(817",225")
W51-W74
(23)
0.9 1.1 1.2e21
4 W24N31
(339",406")
W18-W31
(13)
0.4 0.6 7.5e19
5 W51N43
(544",604")
W41-W58
(17)
0.3 0.3 9.9e19
6 E38S63
(-271",-887")
E59-E24
(35)
0.3 -0.2 -2.3e20
7 E24N12
(-385",106")
E28-E19
(9)
0.2 -0.8 -3.7e19
8 W38S10
(582",-253")
W36-W40
(4)
0.1 -1.1 -2.8e19
9 W27S10
(435",-250")
W25-W29
(4)
0.1 -0.7 -1.1e19
10 W17N10
(282",75")
W16-W19
(3)
0.0 -1.1 -9.0e18

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 9-Oct-2018 23:10 UT .