24 July 2022
⇐20220723 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220725⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E37S01
(-573",-87") 		E58-E15
(43) 		2.0 0.2 5.9e19
2 E28N16
(-430",187") 		E36-E21
(15) 		0.6 2.0 2.2e20
3 W12N10
(196",81") 		W07-W17
(10) 		0.3 -1.2 -4.7e19
4 W39S33
(501",-574") 		W35-W45
(10) 		0.2 -6.4 -2.9e20
5 W53S32
(640",-542") 		W45-W60
(15) 		0.1 -1.6 -7.8e19
6 W21S42
(247",-692") 		W18-W24
(6) 		0.1 -0.7 -2.2e19
7 E24S68
(-140",-903") 		E33-E13
(20) 		0.1 -0.3 -2.4e19

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 24-Jul-2022 23:30 UT .