5 January 2020
⇐20200104 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200106⇒

NOAA
1 Active Region
12755

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E06S09
(-95",-97") 		E38-W25
(63) 		12.0 -0.3 -6.1e20
2 W18S63
(134",-844") 		E70-W51
(121) 		4.6 -1.0 -5.7e21
3 W37S09
(578",-98") 		W23-W50
(27) 		1.9 0.1 7.4e19
4 W20N61
(159",883") 		W03-W63
(60) 		0.6 0.8 9.4e20
5 E30N68
(-180",925") 		E53-W02
(55) 		0.4 1.0 1.8e21
6 W22N26
(336",471") 		W20-W25
(5) 		0.2 -0.7 -4.2e19
7 W21S36
(279",-524") 		W18-W24
(6) 		0.1 -0.9 -3.5e19

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 5-Jan-2020 20:30 UT .