19 March 2019
⇐20190318 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190320⇒

NOAA
1 Active Region
12735

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 W23S71
(124",-868") 		E80-W86
(166) 		2.4 -1.3 -5.2e21
2 E42S25
(-586",-319") 		E47-E35
(12) 		0.7 -0.7 -2.2e20
3 E50S25
(-669",-343") 		E53-E47
(6) 		0.1 -1.2 -5.7e19
4 E64S28
(-768",-404") 		E67-E60
(7) 		0.0 -0.9 -5.5e19
5 W29S21
(441",-250") 		W28-W31
(3) 		0.0 -1.3 -1.5e19

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 19-Mar-2019 20:30 UT .