30 January 2019
20190129 Week Rotation Today Rotation Week 20190131

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W12S15
(199",-157")
E33-W46
(79)
18.0 -0.5 -1.9e21
2 W01S72
(7",-891")
E78-W61
(139)
2.6 -1.1 -5.0e21
3 E43N06
(-658",174")
E50-E32
(18)
0.8 -0.5 -2.0e20
4 W40N57
(345",853")
W42-W67
(25)
0.3 0.8 7.4e20
5 W38S04
(605",15")
W33-W43
(10)
0.2 -1.2 -1.0e20
6 W14N17
(228",373")
W12-W16
(4)
0.1 -0.9 -1.4e19
7 E01N22
(-22",458")
E03-W01
(4)
0.0 -0.8 -1.0e19
8 W53S17
(749",-228")
W51-W57
(6)
0.0 -1.3 -3.8e19

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/solarmonitor/solarmonitoridl/idl. 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. The region positions are valid on 30-Jan-2019 20:30 UT .