16 May 2019
⇐20190515 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190517⇒

NOAA
2 Active Regions
12741
12740

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 E10S56
(-90",-768") 		E77-W73
(150) 		5.3 -0.7 -2.9e21
2 E26S15
(-405",-217") 		E43-E05
(38) 		3.0 -0.0 -3.6e19
3 W32N64
(220",867") 		E39-W68
(107) 		1.8 0.9 4.3e21
4 E12N23
(-179",405") 		E24-W04
(28) 		1.4 0.3 1.2e20
5 E46S36
(-555",-530") 		E59-E35
(24) 		0.4 -1.5 -5.0e20
6 E41N20
(-582",356") 		E44-E38
(6) 		0.1 -0.5 -2.7e19

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 16-May-2019 22:00 UT .