6 February 2022
⇐20220205 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220207⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W40S36
(510",-496") 		W29-W48
(19) 		1.1 -1.4 -3.4e20
2 E55S20
(-750",-268") 		E63-E49
(14) 		0.8 -3.3 -6.9e20
3 W09N64
(67",919") 		E16-W17
(33) 		0.3 0.4 5.6e19
4 E27S03
(-441",45") 		E28-E26
(2) 		0.0 -0.7 -4.7e18

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 6-Feb-2022 20:30 UT .