19 March 2022
⇐20220318 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220320⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 -337
(154",W09S07") 		54
(1.1e05) 		0.9 5.0 5.5e21
2 W30S63
(216",-811") 		E84-W62
(146) 		4.2 -1.0 -1.3e21
3 W04S49
(48",-646") 		E02-W07
(9) 		0.2 -1.8 -7.0e19
4 E70S10
(-892",-128") 		E73-E66
(7) 		0.0 1.9 3.1e19

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-Mar-2022 20:30 UT .