7 April 2022
⇐20220406 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220408⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W07S15
(120",-143") 		E16-W23
(39) 		4.4 -1.8 -1.3e21
2 E12S03
(-206",48") 		E17-E09
(8) 		0.3 -1.7 -7.0e19
3 W09N17
(149",381") 		W07-W11
(4) 		0.1 -3.6 -8.2e19
4 W07S43
(81",-582") 		E00-W10
(10) 		0.1 6.8 1.4e20

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 7-Apr-2022 23:30 UT .