11 April 2021
20210410 Week Rotation Today Rotation Week 20210412

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08S07
(139",-22")
E02-W14
(16)
2.2 0.3 9.2e19
2 E50S35
(-601",-501")
E71-E39
(32)
1.9 -1.3 -6.6e20
3 E50S65
(-310",-836")
E53-E09
(44)
1.6 -0.6 -4.1e20
4 E25N09
(-407",231")
E36-E15
(21)
1.4 -0.1 -1.9e19
5 E20S13
(-319",-119")
E29-E11
(18)
1.3 -2.2 -4.6e20
6 W50S73
(219",-890")
E02-W60
(62)
0.8 -1.0 -4.1e20
7 W50S52
(456",-712")
W43-W58
(15)
0.4 -0.7 -8.1e19
8 E02S18
(-38",-202")
E05-W01
(6)
0.2 -1.7 -5.3e19
9 W26N28
(378",524")
W23-W29
(6)
0.1 1.6 3.3e19
10 W19N38
(245",666")
W16-W22
(6)
0.1 1.7 2.5e19
11 W12N10
(192",265")
W10-W14
(4)
0.0 1.6 1.0e19

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 11-Apr-2021 23:30 UT .