2 October 2021
⇐20211001 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211003⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E16N06
(-270",-3") 		E31-W04
(35) 		3.9 0.1 4.9e19
2 W26N70
(147",860") 		E91-W81
(172) 		2.4 1.1 9.3e20
3 W37N18
(555",203") 		W25-W46
(21) 		2.0 -0.4 -1.4e20
4 E27S37
(-343",-654") 		E40-E14
(26) 		1.0 -1.3 -3.4e20
5 W25S19
(390",-408") 		W16-W32
(16) 		0.7 -1.6 -2.0e20

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 2-Oct-2021 23:30 UT .