26 May 2015
⇐20150525 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150527⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15N45
(-169",692") 		E74-W25
(99) 		8.5 2.9 1.5e34
2 W16S70
(90",-883") 		E75-W74
(149) 		1.6 -0.8 -3.2e33
3 W20S13
(316",-184") 		W06-W26
(20) 		1.3 8.4 2.7e33
4 W03S22
(49",-333") 		E05-W07
(12) 		0.3 11.7 8.2e32
5 E24S20
(-366",-305") 		E30-E18
(12) 		0.1 4.5 7.2e31
6 E08N12
(-133",213") 		E11-E05
(6) 		0.0 -5.2 -5.2e31
7 E13S14
(-213",-214") 		E16-E11
(5) 		0.0 -8.3 -8.8e31

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 26-May-2015 23:35 UT .