4 July 2017
⇐20170703 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170705⇒

NOAA
0 Active Regions

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 -654
(-376",109") 		1.7e05
(6.6) 		7.9 -5.5 -9.5e33
2 -477
(-122",804") 		6.1e05
(5.5) 		6.4 -5.5 -3.4e34
3 -132
(224",-885") 		4.7e05
(1.0) 		5.2 -6.8 -3.2e34
4 556
(649",-117") 		1.1e04
(0.2) 		5.4 -7.0 -7.9e32
5 -144
(-106",-411") 		1.3e03
(0.0) 		5.3 -6.2 -8.1e31
6 104
(119",-514") 		1.5e03
(0.0) 		4.9 -5.3 -7.9e31
7 -210
(-170",-904") 		2.6e04
(0.0) 		5.5 -6.9 -1.8e33

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 4-Jul-2017 23:30 UT .