19 January 2022
20220118 Week Rotation Today Rotation Week 20220120



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W11S64
(82",-841")
E76-W68
(144)
2.7 -1.1 -9.6e20
2 E32N04
(-521",145")
E47-E15
(32)
2.3 0.5 2.0e20
3 W25S04
(406",7")
W12-W37
(25)
1.1 -0.9 -1.7e20
4 E09N21
(-144",433")
E14-E02
(12)
0.4 2.5 1.8e20
5 W10N03
(162",138")
W04-W13
(9)
0.1 -1.8 -4.3e19

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 19-Jan-2022 20:30 UT .