23 March 2012
⇐20120322 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120324⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E45S51
(-429",-695") 		E57-E21
(36) 		2.0 0.4 8.8e32
2 E23S08
(-373",-19") 		E37-E01
(36) 		1.6 -4.0 -1.6e33
3 E16S73
(-79",-881") 		E84-W32
(116) 		1.3 1.1 2.9e33
4 W17N45
(203",757") 		E09-W29
(38) 		1.0 2.5 2.1e33
5 E42N20
(-603",414") 		E46-E38
(8) 		0.2 2.1 2.1e32

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 23-Mar-2012 20:00 UT .