19 August 2022
⇐20220818 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220820⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E33N13
(-498",120") 		E51-E11
(40) 		3.0 -0.1 -3.4e19
2 W39N40
(462",537") 		W17-W60
(43) 		1.8 -3.1 -1.3e21
3 W26S35
(334",-628") 		W10-W35
(25) 		1.2 -2.3 -6.6e20
4 W12S11
(189",-288") 		W04-W17
(13) 		0.6 -1.7 -1.6e20
5 E21S67
(-131",-907") 		E31-W02
(33) 		0.3 -0.5 -8.6e19
6 E40S63
(-279",-877") 		E45-E40
(5) 		0.1 -0.8 -5.1e19
7 W04N03
(61",-71") 		W02-W05
(3) 		0.0 1.1 6.8e18
8 E40N25
(-554",312") 		E42-E38
(4) 		0.0 -1.4 -1.2e19

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 19-Aug-2022 23:30 UT .