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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 29 December
To: solar-daily@lut.fi
Date: Wed, 29 Dec 93 22:36:55 MST
X-Mailer: ELM [version 2.3 PL11]
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Status: RO

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 29 DEC 93
                    ---------------------------------------


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

     BOU  MUR  ASH  SAL  TOM  MAG  JUL  SVE  DIX  WLP  VBG  GOO  EIE  TAO  CHU  KEA  ARG  NIC  DYS  LEA
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 3.6       3.2  2.8  3.2  3.6  2.9            2.9  2.4  2.5  3.3  3.7       3.2   B        3.3  2.9
01Z: 3.5                           2.7            2.7  3.0  2.4  3.3  3.4       3.5   B        3.2  2.8
02Z: 3.3                           2.8            2.7  3.8  2.5  3.3  3.2       3.5   B         A   2.9
03Z:  A                            2.9            2.7  4.1   B   2.9  3.2       3.5   B         A   2.9
04Z:  C                            3.0            2.8  4.0  2.4   B   3.4       3.5   B         A   2.8
05Z: 3.0                            E             2.7  4.5   A    B    R        3.5   B        3.1  3.0
06Z: 3.0       3.1       3.7       3.1            2.5   A    A    B   3.2       3.1   B        2.9  3.2
07Z:  C   3.5  3.0  3.4  3.8  3.5  3.0  3.2  3.3  2.6  2.7   A   2.6  3.0       3.5   B        3.1  3.0
08Z:  C   3.5       3.5  3.6       3.6       2.9  2.8  3.0   A   2.7  3.3       3.5   B        3.2  3.1
09Z: 3.4  3.5       3.4  3.4  3.2            3.4  3.0  3.0   A   2.6  3.6       3.0   B        3.2  3.4
10Z: 2.5  3.6  3.1  3.4  3.7  3.3       3.3  3.4  3.3  3.2   A   2.4  3.4       2.8   B        3.2   A
11Z: 3.1  3.6  3.3  3.5  3.6  3.2            3.1  2.9  3.2  3.0  3.4  3.2       3.2  3.6       3.4   A
12Z: 3.3  3.5  3.2  3.3  3.1  3.1            2.9  3.4   A   3.7  2.6  3.7       3.4  3.4       3.0   A
13Z: 3.4  3.5  3.3  3.2  3.3  3.0       3.1  2.9  3.4  2.2  3.3  2.6  3.6       3.2  3.6       3.3  3.7
14Z:           3.3  3.4  3.1  3.0       2.8       3.4  4.1  3.5   B   3.0   F   3.3  3.4       3.6  3.4
15Z:      3.5  3.5  3.1  2.8  3.0       2.8  2.8  3.0  3.4  3.4   B   2.9   F   3.0  3.5       3.6  3.8
16Z:      3.3  3.3       3.0  3.0       2.9  3.3  3.5  3.6  3.5   B   2.9       3.0   A        3.4  3.8
17Z:      3.2                           2.8       3.3  2.7  3.4  2.3  3.0   F   3.2   A   3.6  2.3  3.6
18Z:      3.5                           2.8  3.2  3.4  3.0  3.4  2.7  3.2             A   3.3  3.3  3.5
19Z:                                              3.3  3.3  3.5  3.3  3.3   I         A   3.3  3.3
20Z:                                              3.4  3.5  3.1       3.6  3.5        A   3.3  3.5
21Z:                                              3.4  3.4  3.3  3.2  2.8   I         B   2.9  3.6  3.1
22Z:                                              3.4  3.4  3.6  3.4  2.6  3.4        B   2.9  3.4  3.2
23Z:                                              3.1  3.3  2.7  3.5  3.3             B   3.1  3.6  3.3
=========================================
Estimated Average Global M(3000)F2:  3.21.


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

     MUR  ASH  SAL  TOM  MAG  SVE  DIX
     ---  ---  ---  ---  ---  ---  ---
00Z:      2.0  1.6  1.2  1.5
01Z:
02Z:
03Z:
04Z:
05Z:
06Z:      2.0       2.7
07Z: 1.0  2.0  1.6  2.7  1.0  1.0  1.0
08Z: 1.5       2.0  2.7  1.0       1.0
09Z: 1.0       1.5  1.8  1.0       1.0
10Z: 1.0  2.0  1.0  1.0  1.0  1.0  1.5
11Z: 1.0  2.0  1.0  1.0  1.0  1.8  1.0
12Z: 1.2  2.0  1.0  1.0  1.0  1.6  1.0
13Z: 1.0  2.0  1.0  1.2  1.0  1.8  1.5
14Z:      2.0  1.0  1.1  1.0  1.5  2.0
15Z: 1.0  2.0  1.0  1.3  1.0  1.6  1.2
16Z: 1.2  2.0       1.0  1.0  1.6  1.2
17Z: 1.0  2.0            1.0  1.0  1.2
18Z: 1.0  2.0  1.0       1.0  1.6  1.2
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  SAL  TOM  MAG  SVE  DIX
     ---  ---  ---  ---  ---  ---  ---
00Z:                     1.9
01Z:
02Z:
03Z:
04Z:
05Z:
06Z:
07Z:      3.5            1.9  4.0
08Z:                     2.2
09Z: 1.5       2.0
10Z:      3.4       2.0       3.0
11Z:      3.4       2.2       4.2
12Z:      3.0
13Z:                               1.8
14Z:                     1.5
15Z:                     1.9       3.0
16Z:                1.8  1.5       3.0
17Z:                     1.8       2.2
18Z:           1.9       2.3       4.0
19Z:
20Z:
21Z:
22Z:
23Z:


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

      BOU  MUR  ASH  SAL  TOM  MAG  JUL  SVE  DIX  WAR  POI  WLP  OTI  VBG  GOO  EIE  TAO  CHU  KEA  ARG  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  4.5       3.8  2.1  2.5  5.5  3.6            3.5  4.0  2.9       6.2  2.1  5.6  6.9      11.6   B        3.8  7.9
01Z:  4.1                           3.7            3.4  4.0  3.1       4.0  2.1  4.3  7.5      11.0   B        3.6  9.6
02Z:  2.6                           3.4            3.2  4.2  3.0       5.9  1.9  3.5  8.8       7.8   B         A   9.2
03Z:   A                            3.1            3.4  3.9  3.1       5.6   B   3.1 11.1       6.9   B         A   9.2
04Z:   C                            3.2            3.2  3.6  2.9       5.1  2.3   B  11.3       5.5   B         A   9.6
05Z:  2.1                            F             3.0  3.7  3.1       3.6   A    B    R        4.2   B        3.3 10.3
06Z:  2.4       7.4       7.2       2.4            3.2  3.8  2.8        A    A    B  14.3       3.8   B        3.7 10.3
07Z:   C   2.8  9.0  6.2  7.4  4.1  3.8  6.3  4.2  5.7  4.2  3.6       3.2   A   2.2 16.0       5.0   B        3.7 10.1
08Z:   C   4.5       6.3  7.0       6.6       4.2  7.1       4.5       3.4   A   3.5 16.1       7.8   B        3.9 10.3
09Z:  3.2  5.0       7.0  6.2  1.9            3.5            4.9       3.0   A   3.5 16.0       3.8   B        3.9  8.6
10Z:  3.2  5.5  6.7  6.2  6.4  1.8       8.0  2.5            4.2       3.1   A   3.5  7.5       3.7   B        3.8   A
11Z:  3.2  5.7  7.2  3.8  4.6  1.9       6.0  2.5            3.6       3.1  2.6  5.3  8.5       4.2  4.1       3.1   A
12Z:  3.1  4.9  5.7  3.1  2.7  2.3       5.3  2.0            4.9        A   5.7  3.6  9.3       3.8  5.5       2.9   A
13Z:  3.0  3.5  5.5  2.1  2.2  2.3       3.4  1.9            6.5  4.9  2.7  6.2  3.6  4.2       3.1  6.9       3.5  4.0
14Z:   C        4.0  2.0  1.6  2.6       2.8                 7.6  5.6  4.7  8.1   B   2.6   F   3.0  8.2       5.8  4.1
15Z:   C   2.7  3.7  1.4  1.9  2.7       2.5  4.8            7.8  7.8  5.7  8.3   B   2.5   F   2.8  8.3       7.0  3.8
16Z:   C   2.4  3.0       2.0  2.8       2.1  4.0            8.9  8.5  7.1  8.2   B   2.7       2.3   A        7.5  4.7
17Z:       2.0  2.7                      2.5                 9.1  8.4  8.1  7.6  3.7  2.8  6.6  4.1   A   3.8  6.6  5.1
18Z:       1.5  2.7                      2.5  5.0            7.8  8.4  7.6  7.6  3.4  3.0             A   4.0  6.9  5.3
19Z:                                                         6.9       8.7  6.8  4.7  3.0   I         A   3.0  8.0
20Z:                                                         7.1       8.1  5.2       2.8  8.0        A   2.9  7.7
21Z:                                                         6.6       7.4  4.6  6.3  2.5   I         B   3.0  7.0  3.7
22Z:                                                         4.1       6.7  2.4  7.1  2.8  6.6        B   3.3  7.0  5.6
23Z:                                                         3.7       6.9  2.9  6.4  5.8             B   3.6  5.8  7.0
=========================================
Estimated Average Global foF2:  4.99 MHz.


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

      BOU  MUR  ASH  SAL  TOM  MAG  JUL  SVE  DIX  WLP  VBG  GOO  EIE  TAO  CHU  KEA  ARG  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 16.1      12.2  5.9  8.0 19.8 10.4            8.4 14.9  5.2 18.5 25.5      37.1   B       12.5 22.9
01Z: 14.3                          10.0            8.4 12.0  5.0 14.2 25.5      38.5   B       11.5 26.9
02Z:  8.7                           9.5            8.1 22.4  4.8 11.6 28.2      27.3   B         A  26.7
03Z:   A                            9.0            8.4 23.0   B   9.0 35.5      24.1   B         A  26.7
04Z:   C                            9.6            8.1 20.4  5.5   B  38.4      19.2   B         A  26.9
05Z:  6.2                            F             8.4 16.2   A    B    R       14.7   B       10.2 30.9
06Z:  7.3      22.9      26.6       7.4            7.0   A    A    B  45.8      11.8   B       10.7 33.0
07Z:   C   9.8 27.0 21.1 28.1 14.3 11.4 20.2 13.9  9.4  8.6   A   5.7 48.0      17.5   B       11.5 30.3
08Z:   C  15.8      22.1 25.2      23.8      12.2 12.6 10.2   A   9.4 53.1      27.3   B       12.5 31.9
09Z: 10.8 17.5      23.8 21.1  6.1           11.9 14.7  9.0   A   9.1 57.6      11.4   B       12.5 29.2
10Z:  8.0 19.8 20.8 21.1 23.7  5.9      26.4  8.5 13.9  9.9   A   8.4 25.5      10.4   B       12.2   A
11Z: 10.0 20.5 23.8 13.3 16.6  6.1            7.8 10.4  9.9  7.8 18.0 27.2      13.4 14.8      10.5   A
12Z: 10.2 17.1 18.2 10.2  8.4  7.1            5.8 16.7   A  21.1  9.4 34.4      12.9 18.7       8.7   A
13Z: 10.1 12.2 18.1  6.7  7.3  6.9      10.5  5.5 22.1  5.9 20.5  9.4 15.1       9.9 24.8      11.6 14.8
14Z:   C       13.2  6.8  5.0  7.8       7.8      25.8 19.3 28.4   B   7.8   F   9.9 27.9      20.9 13.9
15Z:   C   9.4 12.9  4.3  5.3  8.1       7.0 13.4 23.4 19.4 28.2   B   7.2   F   8.4 29.1      25.2 14.4
16Z:   C   7.9  9.9       6.0  8.4       6.1 13.2 31.1 25.6 28.7   B   7.8       6.9   A       25.5 17.9
17Z:       6.4                           7.0      30.0 21.9 25.8  8.5  8.4   F  13.1   A  13.7 15.2 18.4
18Z:       5.2                           7.0 16.0 26.5 22.8 25.8  9.2  9.6             A  13.2 22.8 18.6
19Z:                                              22.8 28.7 23.8 15.5  9.9   I         A   9.9 26.4
20Z:                                              24.1 28.4 16.1      10.1 28.0        A   9.6 26.9
21Z:                                              22.4 25.2 15.2 20.2  7.0   I         B   8.7 25.2 11.5
22Z:                                              13.9 22.8  8.6 24.1  7.3 22.4        B   9.6 23.8 17.9
23Z:                                              11.5 22.8  7.8 22.4 19.1             B  11.2 20.9 23.1
===============================================
Estimated Average Global MUF(3000)F2: 16.00 MHz.


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

      BOU  TAO  ANC  CNV  PAL  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:  150  250  210       400
01Z:  110  320  200   94  340
02Z:   91  440  170   92  210
03Z:   78  670  130  100  160
04Z:   77  760  100  100  110
05Z:   77  690   94  110   82
06Z:   78  670   93  110   76
07Z:   80  650   94  110   80
08Z:   79  610   92  120   56
09Z:   78  410   93  130   53
10Z:   81  280   93  130   53
11Z:   81  250   93  120   57
12Z:   79  200   93  110   49
13Z:   76  130   94  160   37
14Z:   80  120   95  190   41
15Z:  110  120   96  220   43
16Z:  150  120  100  260   45
17Z:  160  110  110  240   66
18Z:  200   99  130  250  160
19Z:        97  170  240  210
20Z:        93  200  230  240
21Z:        84  210  220  280
22Z:       120  230       340
23Z:  190  190  240  150  440


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

BOU = Boulder CO                 USA                 (N40W105)
MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
MAG = Magadan                    USSR                (N60E151)
JUL = Juliusruh/Rugen            Germany             (N54E013)
SVE = Sverdlovsk                 USSR                (N56E061)
DIX = Dixon                      USSR                (N74E081)
WAR = Warsaw                     Poland              (N52W021)
POI = Poitiers                   France              (N46E000)
WLP = Wallops Island VA          USA                 (N37W075)
OTI = Ottawa                     Canada              (N45W076)
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)
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.


