1 November 2022
⇐20221031 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221102⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05S01
(-80",-86") 		E17-W17
(34) 		4.0 2.0 1.2e21
2 W39N33
(511",472") 		W18-W55
(37) 		2.2 3.2 1.5e21
3 W09N71
(47",888") 		E46-W27
(73) 		1.3 0.8 4.1e20
4 W09N42
(109",590") 		E01-W15
(16) 		0.6 1.5 1.8e20
5 W65N08
(872",99") 		W57-W83
(26) 		0.4 0.9 1.2e20
6 W56N46
(556",665") 		W46-W66
(20) 		0.3 -0.4 -4.0e19
7 W40N53
(375",731") 		W37-W46
(9) 		0.2 -0.5 -2.7e19
8 W59S51
(520",-772") 		W49-W67
(18) 		0.2 -0.8 -8.8e19
9 W27N46
(308",651") 		W23-W32
(9) 		0.1 -0.9 -2.7e19
10 E13N09
(-222",72") 		E15-E12
(3) 		0.1 4.3 5.6e19
11 E16N64
(-120",837") 		E23-E12
(11) 		0.0 -1.7 -2.6e19
12 E08N57
(-76",769") 		E11-E06
(5) 		0.0 -1.4 -1.4e19

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 1-Nov-2022 04:30 UT .