2 May 2023
⇐20230501 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230503⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E17S43
(-199",-598") 		E52-W24
(76) 		5.4 2.6 2.8e21
2 E20N09
(-328",217") 		E31-E07
(24) 		1.5 1.6 4.0e20
3 E20S06
(-332",-42") 		E23-E17
(6) 		0.2 3.2 1.2e20
4 W02N05
(31",146") 		E01-W04
(5) 		0.1 -1.1 -2.3e19
5 W45N41
(510",659") 		W40-W47
(7) 		0.1 -0.5 -1.6e19
6 W57N35
(651",580") 		W55-W60
(5) 		0.1 -1.4 -2.9e19
7 W40S66
(254",-845") 		W36-W46
(10) 		0.1 -1.0 -2.1e19

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 2-May-2023 23:30 UT .