16 June 2023
⇐20230615 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230617⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W37N09
(565",129") 		E03-W65
(68) 		6.2 -0.7 -8.8e20
2 E17S34
(-232",-552") 		E27-W02
(29) 		3.8 -2.9 -2.1e21
3 W04N37
(48",558") 		E08-W13
(21) 		0.9 3.3 6.0e20
4 W29S55
(263",-787") 		W13-W39
(26) 		0.9 0.4 1.1e20
5 E09N14
(-149",216") 		E15-W01
(16) 		0.4 -1.2 -8.0e19
6 W34N27
(475",418") 		W32-W36
(4) 		0.2 -1.8 -7.2e19
7 W02S09
(27",-172") 		E03-W05
(8) 		0.2 -3.7 -1.0e20
8 E06N10
(-100",144") 		E09-E03
(6) 		0.1 -2.8 -5.0e19

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 16-Jun-2023 23:30 UT .