10 March 2021
⇐20210309 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210311⇒

NOAA
2 Active Regions
12807
12808

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 E24N07
(-397",232") 		E41-W07
(48) 		4.8 0.1 9.4e19
2 W30N05
(481",183") 		W07-W60
(53) 		4.7 -0.1 -5.4e19
3 E19S66
(-129",-830") 		E78-W53
(131) 		4.4 -0.9 -1.3e21
4 W06S31
(82",-396") 		E20-W20
(40) 		2.4 -1.5 -5.8e20
5 E41N35
(-526",622") 		E42-E37
(5) 		0.6 1.2 2.2e20
6 W23N36
(311",652") 		W15-W30
(15) 		0.3 0.9 5.8e19
7 W07N07
(124",240") 		W05-W10
(5) 		0.1 1.7 3.0e19

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-Mar-2021 20:30 UT .