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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9310280511.AA29322@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 27 October
To: solar-daily@lut.fi
Date: Wed, 27 Oct 93 23:11:00 MDT
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Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
X-Sequence: 1093
Status: RO

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 27 OCT 93
                    ---------------------------------------


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

     ASH  SVE  SAL  TOM  KHA  MAG  MUR  JUL  UPS  BOU  WLP  MAU  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  LEA
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 2.6            2.7  3.2  3.3       2.8       3.4  3.0  3.2  3.2  2.9       3.4       3.2  2.7  2.8  2.9  3.1
01Z:                3.0  3.8  3.2       3.0            2.9  3.2  3.3  2.5  2.9  3.2       3.3  2.6  2.7  2.9  4.1
02Z:                3.2  3.6  3.3       2.8            2.8  3.3  3.4   A   3.0   R        3.3   B   2.7   C   2.7
03Z: 3.2  2.9  2.9  3.2  3.6  3.4       3.1  2.8       2.8  3.5  3.3   B   2.5            3.5  2.8  2.9  3.2  2.8
04Z: 3.0  2.9       3.5  3.1  3.2        E   3.1       2.7  3.3  3.0   B    A   3.1       3.4  2.8  2.8  3.3  2.7
05Z: 3.4  3.0       3.2  3.2  3.2       3.0  3.0       2.9  2.8  3.1   A    B   3.2       2.8  2.9       3.6  2.5
06Z:      2.9  3.1  3.3  3.1  3.2       3.5            2.9  2.2  2.7   A    A   3.2       2.3  3.3  3.2  3.4  2.8
07Z:      2.8  3.2  3.4       3.2       3.3            2.9  2.8  2.9   A    A   3.2       2.9       3.3  3.6  2.9
08Z:      2.9  3.1  3.1       3.0       3.0            2.9  3.0  2.7   B    A   3.5       3.0       2.7  3.4  2.8
09Z:      2.9       3.3       2.9                      2.5  3.4  2.6   B    B             3.4   B   3.1  3.4
10Z:      2.9  3.0  3.4  3.1  2.8                      2.5  2.8  2.8  3.3  4.0  3.0       2.8  3.0       3.3
11Z:      2.9       3.3  3.1  2.8                      3.6  2.2  2.7  3.1  4.3  3.1       2.3  3.4  3.3  3.2  3.2
12Z:      2.8       3.0  2.7  2.6  2.9                 3.4  3.1  2.8   B    A   3.0       3.1  3.4  3.9  3.5
13Z:                2.9  2.6                           3.3  2.8  2.7  3.0   B   3.3   R   2.8  3.1  3.2  3.6
14Z:      2.8       2.7                                3.2  2.7  2.8  2.8   A    A    B   2.7  3.1       3.5
15Z:      2.6       2.7  2.8                           3.0  2.8  3.5  2.6   B   2.7   R   2.8  3.0  3.1  3.5
16Z:      2.6       2.7  2.7                           3.0  3.2  3.2  2.8   B    F    B   3.3  3.0       2.9
17Z:      2.4       2.7  2.6                           3.1  3.1  2.7  2.8   B   3.1   C   3.1  2.9  3.3
18Z:                                                   3.3       2.8        B   3.0   B
19Z:                                                   3.3       3.2  3.0   B   2.6            3.4
20Z:                                                   3.4       3.2  2.9   B   2.8  3.0       3.3
21Z:                                                   3.4       3.4   A    B   3.1   F        3.1  3.4
22Z:                                                   2.9       3.4  3.3   B   3.4             B   3.0
23Z:                                                   3.1       3.2   A    B                   B   3.0
=========================================
Estimated Average Global M(3000)F2:  3.05.


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

     ASH  SVE  SAL  TOM  DIX  KHA  MAG  MUR
     ---  ---  ---  ---  ---  ---  ---  ---
00Z: 2.0       1.9  1.5       1.2  1.0
01Z: 2.0       1.5  1.4  1.0  1.5  1.0  2.4
02Z:           1.5  1.5       1.4  1.0
03Z: 2.0  1.8  2.3  1.6       1.5  1.0
04Z: 2.0  1.0       1.6       1.2  1.0
05Z: 2.0  1.0       1.7       1.2  1.0
06Z:      1.8  3.0  1.5       1.2  1.0
07Z:      1.6  3.2  1.8            1.0
08Z:      1.5  3.3  1.6            1.1
09Z:      1.6       2.2  1.5       1.1
10Z:      1.0  3.0  1.0       1.3  1.0
11Z:      1.0       1.0       1.2  1.0
12Z:      1.6  1.0  1.0  1.2  1.2  1.0  1.5
13Z:      1.8  1.0  1.4  1.2  1.3  1.0
14Z:      1.8  1.0  1.2  1.2       1.0
15Z:      1.8  1.0  1.2  1.0  1.2
16Z:      1.8  1.0  1.0  4.0  1.2  1.0
17Z:      1.8  2.0  1.0  1.8  1.2  1.0
18Z:                     1.5       1.0
19Z:
20Z:
21Z:
22Z:
23Z:


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

     ASH  SVE  SAL  TOM  DIX  KHA  MAG  MUR
     ---  ---  ---  ---  ---  ---  ---  ---
00Z:           3.5            3.0  3.5
01Z: 2.5       2.1       5.0  3.3  3.6  4.0
02Z:                3.9       3.8  3.1
03Z: 3.1            2.3       3.7  2.8
04Z: 3.0                      2.6  2.5
05Z: 3.7            2.6       3.8  2.0
06Z:      2.7                 5.5  1.9
07Z:      3.0                      1.2
08Z:      3.0                      1.1
09Z:      3.0            3.2       1.1
10Z:      3.0       2.3       4.9  1.2
11Z:      3.0                 3.8  1.3
12Z:      2.5  2.0       2.8  3.8  1.7  4.0
13Z:           4.6       5.2       1.5
14Z:           5.5       4.2       1.7
15Z:           5.0       5.6
16Z:           5.2       4.9       1.2
17Z:           5.0       3.5       2.7
18Z:                     2.2
19Z:
20Z:
21Z:
22Z:
23Z:


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

      ASH  SVE  SAL  TOM  KHA  MAG  MUR  JUL  UPS  POI  BOU  WLP  OTI  MAU  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  2.5            2.0  6.4  5.4       2.2  5.0  3.0  6.7  4.4      14.6  6.5  4.9       8.3      14.6  3.6  4.2  3.2  5.0
01Z:                 3.1  6.3  6.2       2.2       3.0       4.8      13.2  7.2  4.6  5.2 10.2      13.2  3.4  4.1  3.3  5.9
02Z:                 4.5  6.6  6.2       2.2       3.1       4.4      12.5  5.7   A   5.3   R       12.5   B   4.4   C   6.4
03Z:  6.6  4.0  3.5  6.2  8.0  5.9       1.8  2.9  2.9       4.3      11.8  5.6   B   4.4           11.8  3.6  4.1  3.3  6.8
04Z:  7.5  4.8       7.4  7.6  6.0        F   3.0  2.6       4.2       9.3  4.6   B    A  12.8       9.3  3.2  4.4  4.5  6.5
05Z:  7.8  5.4       7.4  7.0  6.0       2.0  3.1  2.3       3.8       7.5  3.7   A    B  14.0       7.5  3.5       6.9  6.4
06Z:       6.3  5.2  8.9  7.3  5.9       3.6       2.7       3.7       6.8  3.5   A    A  14.4       6.8  3.0  4.0  8.7  7.7
07Z:       6.4  5.8  8.7       5.4       4.7       4.5       3.4       6.6  3.6   A    A  14.2       6.6       4.2  9.1  7.2
08Z:       6.0  5.7  7.0       4.4       5.1                 2.8       6.3  4.0   B    A  12.4       6.3       3.0  8.6  6.6
09Z:       6.3       8.2       3.7                           2.5       6.4  3.9   B    B             6.4   B   2.5  8.4
10Z:       6.8  6.1  7.5  6.3  3.1                           2.1       3.2  4.4  9.2  3.7  8.6       3.2  4.1       8.3
11Z:       6.2       5.6  5.7  2.6                           4.4       3.7  4.1  4.1  5.3  7.8       3.7  5.6  7.1  9.3  4.5
12Z:       5.3       4.1  4.8  2.0  4.0                      6.0  3.9  2.8  3.8   B    A   7.4       2.8  5.5  6.8  9.5
13Z:       5.0       3.7  5.4                                7.3  6.0  2.3  3.9  4.4   B   6.6   R   2.3  5.3  6.9  7.8
14Z:       4.3       3.6                                     9.2  6.4  2.4  4.0  4.4   A    A    B   2.4  5.9       6.7
15Z:       3.0       3.3  4.0                                8.2  6.6  2.7  4.5  4.9   B   4.5   R   2.7  6.2  9.0  6.5
16Z:       3.3       3.6  4.0                                9.8  8.1  2.8  5.7  5.6   B    F    B   2.8  6.7       4.4
17Z:       3.3       3.7  4.0  2.7                           9.4  8.4  5.9  5.7  6.3   B   5.0   C   5.9  6.7  9.1
18Z:                                                         9.9  8.5       6.2        B   4.6   B
19Z:                                                         9.9            6.9  6.9   B   3.5            8.0
20Z:                                                         8.1            6.1  3.9   B   3.6  5.5       5.6
21Z:                                                         5.9            6.5   A    B   4.0  4.2       4.0  5.3
22Z:                                                         6.3            6.6  4.1   B   4.1             B   4.4
23Z:                                                         4.3            6.6   A    B                   B   4.4
=========================================
Estimated Average Global foF2:  5.66 MHz.


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

      ASH  SVE  SAL  TOM  KHA  MAG  MUR  JUL  UPS  BOU  WLP  MAU  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  6.5            5.4 20.5 17.8       6.2      22.8 13.2 46.0 20.8 14.2      28.2      46.7  9.7 11.8  9.3 15.5
01Z:                 9.3 23.9 19.8       6.6           13.9 42.9 23.8 11.5 15.1 32.6      43.6  8.8 11.1  9.6 24.2
02Z:                14.4 23.8 20.5       6.2           12.3 41.2 19.4   A  15.9   R       41.2   B  11.9   C  17.3
03Z: 21.1 11.6 10.2 19.8 28.8 20.1       5.6  8.3      12.0 41.3 18.5   B  11.0           41.3 10.1 11.9 10.6 19.0
04Z: 22.5 13.9      25.9 23.6 19.2        F   9.3      11.3 31.2 13.8   B    A  39.7      31.6  9.0 12.3 14.8 17.6
05Z: 26.5 16.2      23.7 22.4 19.2       6.0  9.5      11.0 20.6 11.5   A    B  44.8      21.0 10.2      24.8 16.0
06Z:      18.3 16.1 29.4 22.6 18.9      12.6           10.7 15.3  9.4   A    A  46.1      15.6  9.9 12.8 29.6 21.6
07Z:      17.9 18.6 29.6      17.3      15.5            9.9 18.8 10.4   A    A  45.4      19.1      13.9 32.8 20.9
08Z:      17.4 17.7 21.7      13.2      15.3            8.1 18.6 10.8   B    A  43.4      18.9       8.1 29.2 18.5
09Z:      18.3      27.1      10.7                      6.2 21.8 10.1   B    B            21.8   B   7.8 28.6
10Z:      19.7 18.3 25.5 19.5  8.7                      5.2  9.0 12.3 30.4 14.8 25.8       9.0 12.3      27.4
11Z:      18.0      18.5 17.7  7.3                     15.8  8.3 11.1 12.7 22.8 24.2       8.5 19.0 23.4 29.8 14.4
12Z:      14.8      12.3 13.0  5.2 11.6                20.4  8.7 10.6   B    A  22.2       8.7 18.7 26.5 33.2
13Z:                10.7 14.0                          24.1  6.3 10.5 13.2   B  21.8   R   6.4 16.4 22.1 28.1
14Z:      12.0       9.7                               29.4  6.4 11.2 12.3   A    A    B   6.5 18.3      23.4
15Z:       7.8       8.9 11.2                          24.6  7.6 15.8 12.7   B  12.2   R   7.6 18.6 27.9 22.8
16Z:       8.6       9.7 10.8                          29.4  9.1 18.2 15.7   B    F    B   9.2 20.1      12.8
17Z:       7.9      10.0 10.4                          29.1 18.3 15.4 17.6   B  15.5   C  18.3 19.4 30.0
18Z:                                                   32.7      17.4        B  13.8   B
19Z:                                                   32.7      22.1 20.7   B   9.1           27.2
20Z:                                                   27.5      19.5 11.3   B  10.1 16.5      18.5
21Z:                                                   20.1      22.1   A    B  12.4   F       12.4 18.0
22Z:                                                   18.3      22.4 13.5   B  13.9             B  13.2
23Z:                                                   13.3      21.1   A    B                   B  13.2
===============================================
Estimated Average Global MUF(3000)F2: 17.26 MHz.


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

      BOU  TAO  ANC  CNV  PAL  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:  150  300  410       490
01Z:  150  430  400  130  500
02Z:  120  570  400  120  470
03Z:  110  680  410  120  360
04Z:   83  860  370  120  250
05Z:   78  850  350  110  160
06Z:   71  770  320  110  130
07Z:   78  620  300  110  130
08Z:   76  480  300  120  110
09Z:   70  470  320  120   94
10Z:   67  310  310  110   42
11Z:   66  240  310  100   38
12Z:   64  220  320  140   20
13Z:   46  170  310  190   27
14Z:   67  140  300  250   34
15Z:   83  110  300  260   27
16Z:  120  120  300  350   34
17Z:  150  120  300  420  100
18Z:  180  120  320  410  220
19Z:  170  120  330  410
20Z:  150  120  340  330  470
21Z:  140  120  340  260  550
22Z:  150  180  350  220  470
23Z:  160       350  200  390


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

ASH = Ashkhabad                  USSR                (N37E058)
SVE = Sverdlovsk                 USSR                (N56E061)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
MUR = Murmansk                   USSR                (N68E033)
JUL = Juliusruh/Rugen            Germany             (N54E013)
UPS = Uppsala                    Sweden              (N60E018)
POI = Poitiers                   France              (N46E000)
BOU = Boulder CO                 USA                 (N40W105)
WLP = Wallops Island VA          USA                 (N37W075)
OTI = Ottawa                     Canada              (N45W076)
MAU = Maui HI                    USA                 (N20W157)
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)
BER = Bermuda                    Bermuda             (N32W064)
NIC = Nicosia                    Cyprus              (N35E033)
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.


