22 January 2018
20180121 Week Rotation Today Rotation Week 20180123

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E18S57
(-166",-769")
E64-W23
(87)
5.5 -0.9 -4.1e33
2 E29N23
(-433",450")
E72-E07
(65)
2.8 0.7 8.3e32
3 E37N55
(-336",838")
E52-E45
(7)
0.6 0.5 6.4e32
4 W68N09
(891",183")
W58-W83
(25)
0.3 -0.7 -5.2e32
5 W41S10
(630",-96")
W37-W45
(8)
0.2 -1.8 -1.3e32
6 W40S16
(602",-196")
W38-W41
(3)
0.1 -1.5 -5.7e31
7 W56S03
(811",-1")
W54-W60
(6)
0.1 -2.7 -1.4e32
8 E37S08
(-580",-66")
E39-E35
(4)
0.1 -1.1 -2.4e31

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 22-Jan-2018 20:30 UT .