21 March 2020
⇐20200320 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200322⇒

NOAA
0 Active Regions

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 E12S16
(-192",-162") 		E40-W27
(67) 		4.8 -0.0 -4.7e19
2 W31S66
(204",-833") 		E49-W72
(121) 		3.8 -1.4 -7.4e21
3 E07N12
(-111",312") 		E14-W08
(22) 		1.5 0.2 5.4e19
4 W21N68
(132",927") 		E10-W36
(46) 		0.4 1.0 2.3e21
5 E58S65
(-343",-841") 		E68-E40
(28) 		0.4 -0.4 -3.4e20
6 W34S36
(437",-480") 		W30-W39
(9) 		0.2 -0.9 -8.5e19

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 21-Mar-2020 20:30 UT .