10 April 2021
⇐20210409 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210411⇒

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 W15S06
(249",-12") 		E15-W33
(48) 		3.7 0.2 1.3e20
2 E08S66
(-50",-834") 		E63-W48
(111) 		3.1 -0.7 -7.1e20
3 E64S32
(-730",-468") 		E66-E51
(15) 		0.6 -1.3 -2.9e20
4 W39S29
(531",-391") 		W32-W44
(12) 		0.4 -1.8 -1.5e20
5 E36S15
(-541",-164") 		E42-E31
(11) 		0.4 -2.4 -1.7e20
6 E26S07
(-421",-32") 		E29-E24
(5) 		0.0 -1.2 -9.2e18

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 10-Apr-2021 23:30 UT .