29 June 2017
⇐20170628 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170630⇒

NOAA
1 Active Region
12664

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 -664
(-457",-262") 		8.2e04
(2.4) 		5.3 -5.9 -4.9e33
2 -375
(-101",-865") 		4.4e05
(2.2) 		5.1 -7.1 -3.2e34
3 -394
(-93",871") 		4.5e05
(2.1) 		6.7 -5.5 -2.5e34

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 29-Jun-2017 23:30 UT .