4 February 2022
20220203 Week Rotation Today Rotation Week 20220205



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W30S15
(473",-163")
W13-W44
(31)
2.4 -0.6 -2.8e20
2 W13S34
(185",-450")
E02-W24
(26)
1.9 -1.8 -5.8e20
3 W03N40
(36",703")
E06-W06
(12)
0.5 1.6 1.9e20
4 E26N63
(-193",907")
E43-E07
(36)
0.3 0.5 8.5e19
5 E34S80
(-97",-936")
E82-E43
(39)
0.1 -0.4 -3.2e19
6 W56S05
(805",-21")
W52-W61
(9)
0.1 -0.5 -7.4e18

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 4-Feb-2022 20:30 UT .