11 April 2019
⇐20190410 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190412⇒

NOAA
1 Active Region
12738

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 W22S61
(173",-793") 		E57-W70
(127) 		5.7 -0.9 -5.2e21
2 E08N63
(-57",892") 		E53-W33
(86) 		1.2 0.8 2.1e21
3 E25N47
(-273",763") 		E27-E22
(5) 		0.1 -0.7 -6.7e19
4 W53S50
(491",-696") 		W48-W57
(9) 		0.1 -1.4 -1.4e20
5 E08S29
(-112",-384") 		E10-E05
(5) 		0.1 -1.3 -2.0e19
6 W23N10
(366",261") 		W21-W25
(4) 		0.0 -1.0 -1.1e19

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 11-Apr-2019 19:30 UT .