9 May 2017
⇐20170508 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170510⇒

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 -261
(156",-879") 		4.9e05
(1.9) 		5.3 -6.9 -3.4e34
2 -328
(-12",888") 		3.7e05
(1.6) 		5.7 -5.7 -2.1e34
3 81
(316",-172") 		3.7e04
(1.5) 		6.5 -5.6 -2.1e33
4 -814
(-695",-254") 		9.6e04
(1.4) 		7.4 -5.5 -5.3e33
5 90
(165",637") 		1.7e04
(0.3) 		6.9 -5.8 -9.8e32
6 -251
(-228",801") 		4.9e03
(0.0) 		4.4 -7.3 -3.6e32

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-May-2017 23:30 UT .