22 February 2024
⇐20240221 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240223⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W07S19
(112",-196") 		E24-W31
(55) 		3.9 -3.9 -2.4e21
2 W02N48
(27",793") 		E37-W15
(52) 		2.6 -2.7 -1.8e21
3 W34S55
(316",-733") 		W24-W42
(18) 		0.3 0.3 2.7e19
4 E38S33
(-505",-447") 		E44-E32
(12) 		0.1 -2.2 -6.8e19
5 W52S55
(445",-743") 		W44-W57
(13) 		0.1 1.4 3.6e19

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 22-Feb-2024 20:30 UT .