2 April 2022
⇐20220401 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220403⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E00N06
(-5",213") 		E21-W26
(47) 		3.5 0.1 8.1e19
2 W43S32
(549",-445") 		W27-W57
(30) 		1.5 -1.8 -5.9e20
3 E01S75
(-4",-895") 		E24-W76
(100) 		1.2 -1.1 -5.6e20
4 E58S09
(-805",-98") 		E65-E53
(12) 		0.2 -1.0 -5.7e19
5 W46N04
(696",139") 		W43-W49
(6) 		0.2 -1.0 -4.4e19
6 W03S42
(32",-562") 		E02-W06
(8) 		0.2 -1.9 -5.8e19
7 W32S49
(334",-657") 		W26-W34
(8) 		0.1 -0.4 -7.9e18
8 W38S61
(283",-797") 		W29-W48
(19) 		0.1 -1.0 -2.5e19
9 W28N10
(440",253") 		W25-W30
(5) 		0.0 -0.7 -5.9e18
10 E02N26
(-24",522") 		E03-E00
(3) 		0.0 -1.5 -1.0e19

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 2-Apr-2022 23:30 UT .