9 July 2019
⇐20190708 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190710⇒

NOAA
1 Active Region
12744

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 E15S13
(-231",-270") 		E40-W23
(63) 		8.0 -0.3 -3.8e20
2 E09N63
(-68",816") 		E83-W81
(164) 		5.2 1.1 1.7e21
3 E01S66
(-4",-883") 		E47-W49
(96) 		1.1 -1.1 -5.1e20
4 W54N25
(691",360") 		W40-W65
(25) 		0.8 1.3 2.6e20
5 W28N09
(435",85") 		W22-W33
(11) 		0.7 0.8 9.8e19
6 E41N26
(-561",370") 		E44-E39
(5) 		0.1 0.8 2.5e19
7 E33N09
(-503",88") 		E34-E31
(3) 		0.0 -0.8 -5.6e18

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 9-Jul-2019 23:30 UT .