3 May 2024
⇐20240502 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240504⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W31N16
(467",313") 		W11-W45
(34) 		1.7 4.9 1.5e21
2 W12S14
(193",-163") 		W06-W20
(14) 		1.0 6.5 1.0e21
3 E03N58
(-25",838") 		E09-W06
(15) 		0.2 -1.1 -6.9e19
4 W18S44
(210",-618") 		W13-W21
(8) 		0.1 -1.0 -2.7e19
5 W02S27
(31",-370") 		E01-W04
(5) 		0.1 4.1 6.5e19
6 W25S38
(319",-546") 		W22-W28
(6) 		0.1 -2.7 -5.2e19
7 W32S67
(195",-855") 		W26-W40
(14) 		0.1 -0.5 -1.6e19
8 W11S60
(89",-796") 		W07-W13
(6) 		0.1 -0.4 -7.4e18

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 3-May-2024 23:30 UT .