18 March 2022
⇐20220317 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220319⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E20S07
(-334",-5") 		E46-W17
(63) 		4.7 1.1 8.0e20
2 W16S62
(121",-793") 		E84-W51
(135) 		4.4 -1.1 -1.3e21
3 E45N01
(-688",106") 		E50-E42
(8) 		0.1 -0.7 -1.6e19
4 E28N07
(-458",217") 		E30-E27
(3) 		0.0 2.6 1.9e19

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 18-Mar-2022 20:30 UT .