22 March 2020
⇐20200321 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200323⇒

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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21S13
(-341",-108") 		E66-W20
(86) 		9.3 -0.0 -2.4e19
2 W15S67
(99",-835") 		E59-W63
(122) 		3.9 -1.3 -6.2e21
3 W26S20
(393",-222") 		E02-W42
(44) 		3.3 -0.1 -7.9e19
4 E56S49
(-523",-679") 		E64-E45
(19) 		0.2 -0.9 -2.4e20
5 W45S28
(607",-378") 		W42-W52
(10) 		0.2 -1.0 -1.1e20
6 E37N13
(-565",309") 		E40-E34
(6) 		0.1 -0.6 -1.9e19
7 E43S05
(-657",-2") 		E45-E41
(4) 		0.1 -0.6 -1.6e19
8 W23N08
(381",238") 		W21-W26
(5) 		0.1 -2.0 -3.0e19
9 E13N27
(-194",540") 		E15-E11
(4) 		0.0 -0.8 -1.3e19

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 22-Mar-2020 20:30 UT .