9 December 2017
20171208 Week Rotation Today Rotation Week 20171210

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E04N55
(-44",797")
E54-W31
(85)
7.3 0.7 4.4e33
2 E25S20
(-382",-338")
E41-E11
(30)
2.7 -1.0 -8.4e32
3 W25N22
(385",365")
W13-W33
(20)
0.7 1.9 4.1e32
4 E56N13
(-793",214")
E62-E50
(12)
0.2 0.3 5.4e31
5 W43S74
(181",-936")
W32-W61
(29)
0.1 -1.6 -1.1e33
6 E04S39
(-48",-612")
E07-W00
(7)
0.1 -0.8 -2.0e31

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 9-Dec-2017 20:30 UT .