23 February 2024
⇐20240222 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240224⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19S21
(303",-234") 		E11-W32
(43) 		3.0 -5.3 -2.6e21
2 W24N48
(264",787") 		E09-W41
(50) 		2.4 -2.5 -1.8e21
3 E25S34
(-340",-445") 		E31-E19
(12) 		0.3 -4.0 -1.9e20
4 W39S55
(355",-734") 		W35-W45
(10) 		0.1 -0.3 -8.6e18
5 W16S44
(190",-587") 		W11-W20
(9) 		0.1 -1.5 -2.7e19
6 E05S69
(-28",-857") 		E09-W04
(13) 		0.1 -0.6 -1.2e19
7 E30S73
(-136",-894") 		E35-E21
(14) 		0.0 -0.7 -1.1e19

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 23-Feb-2024 20:30 UT .