31 October 2022
⇐20221030 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221101⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E11S00
(-190",-81") 		E22-W10
(32) 		4.0 2.1 1.3e21
2 W35N33
(467",469") 		W13-W50
(37) 		2.6 3.5 1.9e21
3 E02N71
(-9",885") 		E21-W44
(65) 		1.4 0.6 3.4e20
4 W63N07
(853",87") 		W50-W80
(30) 		0.8 1.0 2.7e20
5 E01N43
(-10",599") 		E09-W09
(18) 		0.5 1.3 1.4e20
6 W53N45
(549",649") 		W41-W61
(20) 		0.3 -0.3 -2.6e19
7 W53S51
(484",-780") 		W47-W63
(16) 		0.3 -0.7 -8.3e19
8 W24N47
(271",654") 		W19-W30
(11) 		0.2 -1.2 -4.1e19
9 E14N56
(-126",763") 		E18-E09
(9) 		0.1 -1.8 -2.5e19

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 31-Oct-2022 20:30 UT .