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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 24 December
To: solar-daily@lut.fi
Date: Fri, 24 Dec 93 22:20:41 MST
X-Mailer: ELM [version 2.3 PL11]
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                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 24 DEC 93
                    ---------------------------------------


M-FACTORS FOR 3000 KM DISTANCES - M(3000)F2
-------------------------------------------

     ASH  SVE  SAL  MAG  MUR  DIX  WLP  MAU  TOM  VBG  GOO  EIE  TAO  KEA  ARG  NIC  DYS  LEA
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 2.9  2.9       3.6            3.4  2.8       3.6  2.8  3.1  3.5  2.8   B        3.4  4.5
01Z:                               2.7  3.4       3.4  2.6  3.0  3.7  3.4   B        3.2   A
02Z:                               2.9  3.6       3.1  2.7  2.9  3.6  3.6   B        3.2  2.6
03Z:                               2.8  3.6       3.2  3.1  3.0  3.4  3.6  2.9       3.2  2.8
04Z:                               3.0  3.8       3.3  3.1   B   3.5  3.8  3.0       2.9  2.8
05Z:                               2.8  3.2       2.6  2.3  2.3  3.5  3.3  2.9       3.4  2.7
06Z:                3.8            2.6  3.3       3.1  2.4   A   3.0  3.3   B   3.7  3.0  2.7
07Z:      3.3  3.3       3.2       2.8  3.5       2.7  4.0   A   3.5  3.5   B   3.5  3.0  2.8
08Z: 3.2       3.3  3.7       3.4  2.7  3.5       3.0  2.6  3.9  3.4  3.5   B   3.7  3.2  3.1
09Z: 3.3  3.4  3.4  3.2  3.5       3.0  3.5       3.1  2.3  3.8  3.7  3.5   B   3.5  3.2  3.4
10Z: 3.0       3.4  3.1       3.1  3.1  2.8       3.3  3.1   A   3.5  2.8   A    C   3.2  3.0
11Z: 3.2  3.2       2.8  3.4  3.4  3.2  3.0       3.4  3.1   B   3.1  3.0  3.3   C   3.1   A
12Z: 3.2       3.0  3.0       3.5  3.4  3.5       2.9  3.4   A   3.3  3.5  3.6  3.1  3.1  3.3
13Z:                               3.5  3.3       2.9  3.4  2.6  3.3  3.3  4.0  3.6  3.3  3.3
14Z:                               3.7  3.2  3.0  3.1  3.5   A   3.4  3.2  3.4  3.8  3.6  3.5
15Z:                               3.5  3.4  3.3  3.7  3.4   A   3.3  3.4   A   3.7  3.6  3.4
16Z: 3.3       2.9  3.0            3.4  3.2  2.9  3.2  3.5   A   3.2  3.2  3.4  3.4  3.6  3.6
17Z: 3.2       3.0  3.0  3.1       3.2  3.2  3.0  3.2  3.2  2.7  3.0  3.2  3.2  3.3  3.6   A
18Z: 2.7       2.7  3.0            3.5            3.2  3.3  2.6  2.9        A   3.3  3.5  3.5
19Z:                               3.3            3.3  3.4  3.0  3.3       3.3  3.1  3.7  3.4
20Z:                               3.4            3.5  3.2  3.3  3.2       3.3  2.9  3.6  3.3
21Z:                               3.4            3.6  3.0  3.2  3.0       3.4  2.9  3.3  3.0
22Z:                               3.3            3.1  2.8  3.1  3.4       3.4  3.0  3.5  2.9
23Z:                               3.2            3.3  2.9  3.4  3.6        B   3.1  3.4  3.0
=========================================
Estimated Average Global M(3000)F2:  3.22.


MINIMUM OBSERVED FREQUENCIES - FMIN (MHz)
-----------------------------------------

     ASH  SVE  SAL  MAG  MUR  DIX  TOM
     ---  ---  ---  ---  ---  ---  ---
00Z: 1.5  1.6  1.5  1.5
01Z:
02Z:
03Z:
04Z:
05Z:
06Z:                1.0
07Z:      1.8  1.0  1.0  1.0
08Z: 1.8  1.0  1.5  1.0       1.2
09Z: 1.8  1.8  1.0  1.0  1.0
10Z: 1.8  1.0  1.0  1.0       1.5
11Z: 1.5  1.0       1.0  1.0  1.0
12Z: 1.3  1.8  1.0  1.0       1.1
13Z:
14Z:                               1.4
15Z:      1.5                      1.4
16Z: 1.5       1.0  1.0       1.4  1.5
17Z: 1.6       1.0  1.0  1.0  1.5  1.4
18Z: 1.6       1.0  1.0  1.0  1.8
19Z:
20Z:
21Z:
22Z:
23Z:


CRITICAL SPORADIC E-LAYER FREQUENCIES - Es (MHz)
------------------------------------------------

     ASH  SVE  SAL  MAG  MUR  DIX
     ---  ---  ---  ---  ---  ---
00Z:                3.6
01Z:
02Z:
03Z:
04Z:
05Z:
06Z:                2.0
07Z:      5.0  2.0  2.3
08Z: 3.4  4.2       2.0
09Z:      4.2       2.2  1.8
10Z: 3.5  2.2       2.0
11Z: 3.0  2.1                 3.2
12Z: 3.6       2.0            1.9
13Z:
14Z:
15Z:
16Z:                          4.6
17Z:           2.2  2.5       5.0
18Z:           3.7  2.7  4.1  5.0
19Z:
20Z:
21Z:
22Z:
23Z:


OBSERVED CRITICAL F2 LAYER FREQUENCIES (MHz)
--------------------------------------------

      ASH  SVE  SAL  MAG  POI  MUR  DIX  WLP  MAU  TOM  VBG  GOO  EIE  TAO  CHU  KEA  ARG  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  3.8  2.8       5.9  2.9            3.5  9.0       5.7  3.0  5.4  7.5       9.0   B        4.2  4.2
01Z:                      3.0            3.0  9.8       4.2  3.3  5.2  8.9       9.8   B        3.3   A
02Z:                      2.9            3.0  9.5       3.1  3.1  3.7  9.5       9.5   B        3.5  5.6
03Z:                      3.0            3.0  7.4       3.1  2.7  3.5  8.1       7.4  2.2       3.3  6.7
04Z:                      2.9            2.7  5.5       2.7  2.4   B   8.3       5.5  2.2       3.5  7.3
05Z:                      2.6            3.4  3.4       2.8  2.8  4.0 10.6       3.4  2.2       3.8  7.4
06Z:                 4.8  2.6            3.8  4.0       2.9  4.0   A   9.9       4.0   B   6.4  4.0  8.9
07Z:       6.8  5.6       3.0  2.4       3.2  4.0       3.4  5.1   A  12.4       4.0   B   5.8  3.9  8.9
08Z:  6.8  7.0  6.1  2.2            3.6  3.5  3.0       3.3  5.9  4.1 14.2       3.0   B   6.6  4.7  9.9
09Z:  6.7  7.0  5.8  1.8       4.4       4.4  2.7       3.2  2.8  4.5 10.5       2.7   B   7.4  4.6  8.8
10Z:  7.0  8.3  5.2  1.8            2.0  4.5  2.5       2.7  3.1   A   8.4       2.5   A    C   4.5  8.3
11Z:  6.8  5.0       1.8       4.8  3.9  4.0  3.0       2.8  2.8   B   4.7       3.0  4.1   C   3.8   A
12Z:  6.9  5.3 13.2  2.6            3.1  4.7  3.6       2.6  4.2   A   5.1       3.6  5.9  6.9  3.5  5.7
13Z:                                     5.7  3.0       2.7  5.6  3.2  4.4       3.0  6.4  6.8  4.2  5.6
14Z:                                     6.8  3.3  2.0  3.1  7.3   A   3.3   R   3.3  7.1  5.7  5.6  5.5
15Z:      12.0                           7.4  2.8  2.1  5.5  7.1   A   3.0   R   2.8   A   3.8  6.5  5.4
16Z:  2.4       2.2  3.0                 8.6  2.5  2.3  6.5  7.5   A   2.8   B   2.5  7.3  3.1  7.2  3.2
17Z:  2.5       2.8  3.0       2.2       7.7  4.0  2.5  6.9  7.8  3.5  2.8   R   4.0  7.5  4.2  8.2   A
18Z:  2.6       2.3  3.1                 8.3            8.7  8.2  3.3  2.7  6.1        A   3.3  7.8  5.6
19Z:                                     7.9            9.7  7.5  4.1  3.4  6.9       7.5  3.0  8.2  3.9
20Z:                                     7.7            8.5  6.7  4.4  3.1  6.9       6.2  3.2  7.5  3.6
21Z:                                     6.2            8.0  5.8  4.9  3.1  6.9       4.4  3.4  8.0  2.8
22Z:                                     5.4            7.3  4.6  5.1  4.0  6.9       4.5  3.5  6.7  4.5
23Z:                                     4.8            7.0  3.8  4.9  5.9             B   3.4  6.8  5.4
=========================================
Estimated Average Global foF2:  5.00 MHz.


MAXIMUM USABLE FREQUENCIES FOR 3000 KM PATHS (MHz) - MUF(3000)
--------------------------------------------------------------

      ASH  SVE  SAL  MAG  MUR  DIX  WLP  MAU  TOM  VBG  GOO  EIE  TAO  KEA  ARG  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 11.0  8.1      21.2           11.9 24.8      20.5  8.4 16.7 26.2 25.2   B       14.3 18.9
01Z:                                8.1 33.3      14.3  8.6 15.6 32.9 33.3   B       10.6   A
02Z:                                8.7 34.2       9.6  8.4 10.7 34.2 34.2   B       11.2 14.6
03Z:                                8.4 26.6       9.9  8.4 10.5 27.5 26.6  6.4      10.6 18.8
04Z:                                8.1 20.6       8.9  7.4   B  29.1 20.9  6.6      10.2 20.4
05Z:                                9.5 11.1       7.3  6.4  9.2 37.1 11.2  6.4      12.9 20.0
06Z:                18.2            9.9 13.2       9.0  9.6   A  29.7 13.2   B  23.7 12.0 24.0
07Z:      22.4 18.5       7.7       9.0 14.0       9.2 20.4   A  43.4 14.0   B  20.3 11.7 24.9
08Z: 21.8      20.1  8.1      12.2  9.4 10.5       9.9 15.3 16.0 48.3 10.5   B  24.4 15.0 30.7
09Z: 22.1 23.8 19.7  5.8 15.4      13.2  9.3       9.9  6.4 17.1 38.9  9.4   B  25.9 14.7 29.9
10Z: 21.0      17.7  5.6       6.2 13.9  7.0       8.9  9.6   A  29.4  7.0   A    C  14.4 24.9
11Z: 21.8 16.0       5.0 16.3 13.3 12.8  9.0       9.5  8.7   B  14.6  9.0 13.5   C  11.8   A
12Z: 22.1      39.6  7.8      10.8 16.0 12.6       7.5 14.3   A  16.8 12.6 21.2 21.4 10.8 18.8
13Z:                               19.9  9.9       7.8 19.0  8.3 14.5  9.9 25.6 24.5 13.9 18.5
14Z:                               25.2 10.6  6.0  9.6 25.6   A  11.2 10.6 24.1 21.7 20.2 19.2
15Z:                               25.9  9.5  6.9 20.4 24.1   A   9.9  9.5   A  14.1 23.4 18.4
16Z:  7.9       6.4  9.0           29.2  7.9  6.7 20.8 26.2   A   9.0  8.0 24.8 10.5 25.9 11.5
17Z:  8.0       8.4  9.0  6.8      24.6 12.8  7.5 22.1 25.0  9.4  8.4 12.8 24.0 13.9 29.5   A
18Z:  7.0       6.2  9.3           29.1           27.8 27.1  8.6  7.8        A  10.9 27.3 19.6
19Z:                               26.1           32.0 25.5 12.3 11.2      24.8  9.3 30.3 13.3
20Z:                               26.2           29.8 21.4 14.5  9.9      20.5  9.3 27.0 11.9
21Z:                               21.1           28.8 17.4 15.7  9.3      15.0  9.9 26.4  8.4
22Z:                               17.8           22.6 12.9 15.8 13.6      15.3 10.5 23.4 13.1
23Z:                               15.4           23.1 11.0 16.7 21.2        B  10.5 23.1 16.2
===============================================
Estimated Average Global MUF(3000)F2: 16.14 MHz.


OBSERVED TOTAL IONOSPHERIC ELECTRON CONTENT
-------------------------------------------

      TAO  ANC  CNV  PAL  BOU  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:  240  190  110  340  150
01Z:  340  160   93  310  120
02Z:  420  130  100  240
03Z:  560   98  110  160
04Z:  680   79  100   99   83
05Z:  660   60  110   69   87
06Z:  670   58  120   58   85
07Z:  610   58  120   54   81
08Z:  520   56  120   51   85
09Z:  290   56  130   45   98
10Z:  180   57  130   40  100
11Z:  170   55  120   39   95
12Z:  150   54  110   47   94
13Z:  120   55  150   56  100
14Z:  120   56  170   58  100
15Z:  120   57  200   48  130
16Z:  120   58  200   42  150
17Z:  110   60  230   68  190
18Z:  100   79  280  140
19Z:  100  120  270  200  270
20Z:   94  150  240  230  260
21Z:   91  170  210  230  240
22Z:  130  210  180  270  210
23Z:  180  190  170  360


LIST OF REPORTING STATIONS AND THE SATELLITES THEY USE TO MEASURE TEC:

ASH = Ashkhabad                  USSR                (N37E058)
SVE = Sverdlovsk                 USSR                (N56E061)
SAL = Salekhard                  USSR                (N66E066)
MAG = Magadan                    USSR                (N60E151)
POI = Poitiers                   France              (N46E000)
MUR = Murmansk                   USSR                (N68E033)
DIX = Dixon                      USSR                (N74E081)
WLP = Wallops Island VA          USA                 (N37W075)
MAU = Maui HI                    USA                 (N20W157)
TOM = Tomsk                      USSR                (N56E085)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
EIE = Eielson AFB AK             USA                 (N64W147)
TAO = Taoyuan                    Taiwan              (N25E121)
CHU = Churchill                  Canada              (N58W094)
KEA = Keakawapu HI               USA                 (N20W156)
ARG = Argentia                   Canada              (N48W053)
NIC = Nicosia                    Cyprus              (N35E033)
DYS = Dyess AFB TX               USA                 (N32W099)
LEA = Learmonth                  Australia           (S21E115)
ANC = Anchorage AK               USA                 (N61W150)
CNV = Cape Canaveral FL          USA                 (N28W080)
PAL = Palehua HI                 USA                 (N21W158)
BOU = Boulder CO                 USA                 (N40W105)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)


DESCRIPTIVE CODES WHICH MAY APPEAR IN THE FOF2, M(3000), OR SID SECTIONS:

            A = Blanketing Sporadic E
            B = Complete Absorption
            C = Equipment Problems
            D = Frequency Higher than Equipment
            E = Frequency Lower than Equipment
            F = Spread Echoes
            G = FOF2 is less than FOF1
            I = Smoothed Value
            R = Attenuation


     Values in this experimental daily report have not been checked
     for errors and may occasionally contain a few.  Total electron
     content values are given in units of 10^15 electrons per square meter.


