9 November 2019
20191108 Week Rotation Today Rotation Week 20191110

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E02S03
(-30",-115")
E24-W29
(53)
8.3 -0.2 -3.1e20
2 E26N62
(-198",834")
E77-W42
(119)
3.2 0.8 8.8e20
3 W13S59
(111",-862")
E50-W51
(101)
2.4 -0.6 -4.8e20
4 W26N14
(408",186")
W10-W40
(30)
2.1 0.1 2.8e19
5 W18S33
(255",-571")
W13-W22
(9)
0.5 -1.0 -9.7e19
6 E46S02
(-702",-71")
E54-E42
(12)
0.4 -0.5 -3.6e19
7 E52S20
(-717",-365")
E59-E45
(14)
0.2 -1.3 -6.8e19
8 W24S05
(395",-144")
W22-W26
(4)
0.1 -0.7 -1.2e19
9 W28N03
(450",2")
W24-W31
(7)
0.1 -1.0 -1.3e19
10 E51S12
(-733",-242")
E53-E48
(5)
0.1 -0.4 -7.3e18
11 E40S65
(-264",-895")
E42-E34
(8)
0.0 -2.0 -4.0e19

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 9-Nov-2019 23:40 UT .