Sodankylä Geophysical Observatory

Ionosonde

Sodankylä Ionosonde SO166 ("Alpha-Wolf")

Latest f-plot:

lastday.png

Latest interpreted ionograms:

https://www.sgo.fi/pub_ion/lastday.txt

260719  SODANKYLA       FINLAND      0112 674N 266E100160160S  30E                           SV/TM


LT hour    0      1      2      3      4      5      6      7      8      9     10     11
--------------------------------------------------------------------------------------------------

  F-MIN   10      9      6      6     10      7      8      8      9      9     10     10    F-MIN
  H-ES   100     93     91     93 K   91 K  111        G  139    106     94    106    106    H-ES 
  FOES    17     20     20     18 K   21 K   26     27EG   30     36     46     39     43    FOES 
  TYPES  R      F2     R      K      K      C2            H2     C2     C      C      C      TYPES
  FBES    14     13     15     18 K   21 K   24     27EG   29     35     32     35     34    FBES 
  H'E        A      A      A   93 K   91 K   92     92     92     94     87     89     87    H'E  
  FOE    139        A  162    181 K  210 K  219    266    284    300    311    316    324    FOE  
  H'F    246 Q  225 Q  234    227    229    218    203    206    216    190    197    178    H'F  
  FOF1              L      L      L      L  377    411    427    458    450    458    474    FOF1 
  FOF2    59 F   55UF   55 F   53     55     58     60     63 R   63 R   66 R   66 R   63 R  FOF2 
  FXI                                                                                        FXI  
  M3KF2  319 F  307 F  313 F  312    306    310    304    310    295    322    335    312    M3KF2

LT hour   12     13     14     15     16     17     18     19     20     21     22     23
--------------------------------------------------------------------------------------------------

  F-MIN    8      6      6      7      9      7      6      6      8      6      6      6    F-MIN
  H-ES   101     96     92     92     89    120        G  124    112    117    112    100    H-ES 
  FOES    38     64     47     42     36     32     28EG   36     25     36     25     20    FOES 
  TYPES  C      C3     L2     L2     L      H2            H      H      H3     H3     R      TYPES
  FBES    35     42     34     34     32     31     28EG   28     23     27     17     13    FBES 
  H'E     87     89        A      A      A   89     91     91     96     91     93        A  H'E  
  FOE    323    305        A      A      A  295    284 G  261    201    183    149    157    FOE  
  H'F    185    206    178    175    185    199    194    232    191    237    239    247    H'F  
  FOF1   461    469    473    458    448    425UL  427UH      L      L      L      L         FOF1 
  FOF2    64 R   62 R   59 R   61 R   60     59     60UR   57 R   58 R   57     47 F   53 F  FOF2 
  FXI                                                                                        FXI  
  M3KF2  332    317    306    320    328    306    323    327    324    325    325 F  311 F  M3KF2

Last modified: 2026-09-13, 13:14:38.