7 May 2017
⇐20170506 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170508⇒

NOAA
2 Active Regions
12654
12655

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 W11S66
(69",-847") 		122
(5.4e05) 		-1.4 5.7 3.1e34
2 E09S23
(-144",-316") 		E19-W06
(25) 		2.0 0.2 9.7e31
3 W30N61
(233",853") 		87
(4.2e05) 		0.7 6.8 2.9e34
4 E26N36
(-338",607") 		E35-E17
(18) 		0.6 0.6 1.9e32
5 E23S20
(-354",-267") 		E26-E21
(5) 		0.0 -0.9 -1.1e31

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 7-May-2017 23:30 UT .