28 February 2022
⇐20220227 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220301⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E27S18
(-413",-198") 		E48-W04
(52) 		6.4 -0.9 -9.5e20
2 W46S14
(682",-150") 		W25-W70
(45) 		2.5 0.3 1.6e20
3 E23S44
(-275",-582") 		E29-E14
(15) 		0.4 1.3 9.2e19
4 W48S38
(574",-526") 		W36-W53
(17) 		0.3 2.0 1.7e20
5 W55S27
(706",-378") 		W48-W62
(14) 		0.3 3.9 2.9e20
6 W38S60
(299",-783") 		W18-W64
(46) 		0.2 -0.9 -5.9e19
7 E10S29
(-144",-363") 		E14-E04
(10) 		0.1 -2.1 -5.1e19
8 E03S39
(-44",-517") 		E07-W02
(9) 		0.1 -1.4 -3.1e19
9 W03S28
(49",-345") 		W01-W05
(4) 		0.0 -2.1 -1.6e19

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 28-Feb-2022 20:30 UT .