12 September 2017
⇐20170911 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170913⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07N51
(-77",666") 		E65-W39
(104) 		15.0 1.7 1.3e34
2 E04S21
(-69",-445") 		E34-W25
(59) 		5.7 -0.0 -3.3e31

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 12-Sep-2017 19:30 UT .