13 April 2024
⇐20240412 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240414⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W42N32
(544",559") 		W32-W55
(23) 		0.5 2.8 3.6e20
2 E03S57
(-28",-753") 		E12-W08
(20) 		0.3 0.3 2.9e19
3 W43S29
(572",-406") 		W38-W47
(9) 		0.3 -15.6 -9.8e20
4 E05S47
(-52",-627") 		E11-W04
(15) 		0.2 -1.0 -4.3e19
5 E21N00
(-351",88") 		E23-E19
(4) 		0.1 -1.0 -1.8e19
6 E53S11
(-748",-124") 		E56-E50
(6) 		0.1 -4.9 -1.1e20
7 W55S22
(726",-306") 		W49-W62
(13) 		0.1 -7.9 -1.5e20
8 E37S53
(-344",-717") 		E38-E33
(5) 		0.0 -0.4 -4.9e18

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 13-Apr-2024 23:30 UT .