3 March 2021
⇐20210302 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210304⇒

NOAA
3 Active Regions
12806
12807
12803

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 E19S00
(-316",108") 		E40-W17
(57) 		11.6 0.2 3.7e20
2 W20S11
(333",-70") 		E01-W36
(37) 		5.2 0.5 4.4e20
3 E08S31
(-117",-392") 		E12-W00
(12) 		0.4 1.0 6.3e19
4 E41N17
(-607",364") 		E44-E37
(7) 		0.1 -0.6 -1.8e19
5 W43N09
(659",233") 		W41-W47
(6) 		0.1 -0.7 -2.1e19
6 W17N18
(268",416") 		W13-W20
(7) 		0.1 -1.8 -4.2e19

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 3-Mar-2021 20:30 UT .