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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9307180424.AA22320@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 17 July
To: solar-daily@lut.fi
Date: Sat, 17 Jul 93 22:24:27 MDT
X-Mailer: ELM [version 2.3 PL11]
Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
X-Sequence: 896
Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 17 JUL 93
                    ---------------------------------------


REPORTS OF IONOSPHERIC ABSORPTION
---------------------------------

DIX: Type of Measurement = Riometer.
     Type of Phenomenon  = Auroral Absorption.
     Start of Event: Unspecified or In Progress at start of reporting period.
     Event Maximum : Unspecified or I/P,  Maximum Absorption: Unspecified.
     End of Event  : 0200Z


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG  MAU  VBG  GOO  TAO  CHU  KEA  RAM  BER  NIC  DYS
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 3.1       3.0  3.1       3.0       2.8  3.1  3.2  3.3       2.8  3.4   B   2.8  3.0
01Z: 3.1  3.1       2.8                 2.8  3.1  3.2  2.7       2.8  3.3   B   2.8  3.2
02Z: 3.1            3.0            3.2  3.0  3.3  3.0   I        3.0  2.9   B   2.9  3.6
03Z: 3.0            2.9                 3.6  3.4  3.0   A        3.6  3.1   B   3.1  3.5
04Z: 2.8                                3.2  3.4  2.9   C        3.2  2.8   B   3.4  3.3
05Z: 2.9  3.0                           2.9  3.3  2.8  2.8       2.9  2.9   B   3.3  3.0
06Z: 2.9       3.1                      3.0  3.5  2.7  2.8       3.0  2.7   B   3.5  2.9
07Z: 2.8  2.9  3.0            3.1       2.9  3.5   A   2.9       2.9  2.9   B    C   2.9
08Z:           3.0            3.0  3.2  2.8  2.8  3.3  2.7       2.8  3.0   B   3.0  2.9
09Z: 3.0  2.7  3.0            3.1  3.2  3.0  2.5  3.3  3.3       3.0  3.0   B   3.2  3.0
10Z: 3.0       3.1            3.0            3.0  3.4  3.0        A   3.7   B   2.9  3.0
11Z: 3.0       3.0                 3.0  3.3  2.9  3.1  3.0       3.4  3.3   B    C   3.3
12Z: 3.1  3.1  3.1  3.1  2.9  2.8       3.2  3.3  3.2  3.4       3.3  3.4   B   2.9  3.3
13Z:      2.8  3.1  3.3  3.0  3.0       3.0  3.6  3.6  3.1  3.0  3.0  3.3   B    C   3.1
14Z:           3.2  3.1  3.2            2.9  2.9  3.3  3.0  2.9  2.9  3.0   B   3.0  3.0
15Z: 3.1       3.2  3.1  3.0  2.8       3.4  2.9  3.3   A   3.1  3.4  3.0   A   3.1  2.3
16Z: 3.1  3.0  3.2  3.1  2.9  2.9       3.2  3.4  3.1   F   3.1  3.2  2.9   B        3.1
17Z: 2.7  2.9  3.3  3.0  3.0  3.0       3.0  3.0  2.8   F        3.0  3.0   B        2.8
18Z:      3.0  3.2  2.9  3.1  2.9            2.8  2.9   F   3.0       2.9   B   3.3  2.9
19Z:                                         3.3  3.2   F   3.0       3.2   A   2.9  3.0
20Z:                                         2.9  3.2  3.0  2.9       3.0  3.0  3.0  3.1
21Z:                                         3.0  3.0  3.0  3.0       3.0  3.5  3.1  3.0
22Z:                                         3.0  3.0  3.3            3.0  3.6  2.8  3.2
23Z:                                         3.4  3.1  3.0            3.0   B   3.3  3.2
=========================================
Estimated Average Global M(3000)F2:  3.06.


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

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


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z: 3.0  5.0       1.4       6.3
01Z:      2.7       3.0  3.5  6.3  3.5
02Z:      3.0       5.3       9.2  3.6
03Z:      3.5       5.3  3.2  7.9  3.8
04Z:                     3.2  5.2
05Z: 3.0  7.6                 4.9
06Z: 3.8       4.0       3.6  7.2
07Z: 4.2  4.2  4.6       4.0  6.2
08Z: 4.2       5.8       3.6  5.2  4.4
09Z: 3.5  5.0  4.0            3.5  3.2
10Z:                     4.2  2.9
11Z: 4.5       4.0       4.0       2.8
12Z: 4.5  4.3  3.2  3.0  2.8  8.6
13Z:      5.0  3.8  4.0       6.4
14Z: 5.0  5.6  4.2  4.2       5.8
15Z: 5.0  4.8  2.9  1.4  2.8  3.3
16Z: 6.1  5.0  4.7  2.9  3.0  3.3
17Z: 5.4  3.7  4.0  2.7  5.2  3.8
18Z:      3.0  2.8       6.0  4.7
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SAL  TOM  DIX  KHA  MAG  MAU  CAM  VBG  GOO  TAO  RES  CHU  KEA  RAM  BER  NIC  DYS
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  4.8       4.8  5.2       6.2       9.7  6.6  6.4  5.6  6.1  5.4       9.7  6.9   B   5.3  6.9
01Z:  5.0  4.8       5.4  5.0  6.4  4.9 10.2  6.6  6.8  5.6  6.5  5.7      10.2  5.9   B   5.1  7.9
02Z:  5.0  5.3       6.0            5.5 12.0  6.3  7.2  5.0   I    F       12.0  5.6   B   5.0  7.1
03Z:  5.4  4.4       5.7  5.0       5.0 13.3  6.0  7.6  4.5   A    F       13.3  4.9   B   4.9  5.4
04Z:  5.0                 5.0  5.8       8.3  6.3  8.0  3.6   C    F        8.3  5.0   B   6.5  5.2
05Z:  5.4  7.4            5.2  5.6       7.9  6.3  5.9  3.1  7.0   F        7.9  4.8   B   6.5  4.1
06Z:  5.8       5.7       5.2            8.4  5.7  4.4  3.2  7.4            8.4  4.6   B   7.4  3.4
07Z:  5.5  8.0  5.7       5.2  5.7       8.6  4.9  4.6   A   7.7            8.6  4.3   B    C   3.4
08Z:  5.6       5.3       5.2  5.3  5.5  9.1  5.2  4.1  3.6  8.2            9.1  3.6   B   6.2  3.5
09Z:  5.9  6.3  5.6            5.5  5.4  9.3  4.0  4.9  4.4  7.5            9.3  3.6   B   6.7  3.5
10Z:  5.7       5.6       5.1  5.7            4.0  4.0  5.2  7.6             A   4.3   B   7.0  3.4
11Z:  5.6       5.4       5.0       5.8  9.5  4.2  4.2  5.1  7.6            9.5  5.4   B    C   3.5
12Z:  5.4  6.1  5.4  5.6  5.1  6.8       8.5  3.8  6.5  5.3  6.3            8.5  5.9   B   7.6  4.8
13Z:  5.3  6.8  5.1  5.5  5.2  6.8       7.1  3.0  4.7  4.9  5.7       4.8  7.1  5.9   B    C   5.7
14Z:  5.2       5.1  5.4  5.5            7.1  3.0  5.3  5.0  3.8       4.9  7.1  5.7   B   7.1  6.3
15Z:  5.2       5.1  6.3  5.2  5.9       5.5  3.2  6.5  5.5   A        5.3  5.5  5.5   A   7.4  7.1
16Z:  5.0  7.0  5.3  6.5  5.2  5.1       4.8  3.7  7.2  5.4   F        5.4  4.8  5.9   B        7.0
17Z:  5.3  7.0  5.3  5.6  5.4  4.9       5.5  3.8  7.3  5.6   F    F        5.5  5.9   B        6.7
18Z:       7.0  5.1  5.2  5.4  4.7            4.2  7.5  5.7   F        5.7       6.0   B   7.7  7.5
19Z:                                          4.6  7.1  5.4   F        5.5       6.2   A   7.1  7.9
20Z:                                          3.8  7.7  5.4  3.5       5.6       6.3  6.6  7.0  7.8
21Z:                                          4.7  7.7  5.8  3.0       5.5       6.4  5.8  6.4  7.8
22Z:                                          5.8  7.4  5.6  4.8   F             6.4  5.7  6.9  7.3
23Z:                                          6.3  7.7  5.9  5.6  5.7            6.6   B   5.3  7.3
=========================================
Estimated Average Global foF2:  5.96 MHz.


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

      MUR  ASH  SAL  TOM  DIX  KHA  MAG  MAU  VBG  GOO  TAO  CHU  KEA  RAM  BER  NIC  DYS
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 14.9      14.4 16.1      18.6      26.7 19.8 17.9 20.1      27.2 23.5   B  14.8 20.7
01Z: 15.5 14.9      15.1                28.6 21.1 17.9 17.6      28.6 19.5   B  14.3 25.3
02Z: 15.5           18.0           17.6 36.0 23.8 15.0   I       36.0 16.2   B  14.5 25.6
03Z: 16.2           16.5                47.9 25.8 13.5   A       47.9 15.2   B  15.2 18.9
04Z: 14.0                               26.6 27.2 10.4   C       26.6 14.0   B  22.1 17.2
05Z: 15.7 22.2                          22.9 19.5  8.7 19.6      22.9 13.9   B  21.4 12.3
06Z: 16.8      17.7                     24.8 15.4  8.6 20.7      25.2 12.4   B  25.9  9.9
07Z: 15.4 23.2 17.1           17.7      24.9 16.1   A  22.3      24.9 12.5   B    C   9.9
08Z:           15.9           15.9 17.6 25.5 11.5 11.9 22.1      25.5 10.8   B  18.6 10.2
09Z: 17.7 17.0 16.8           17.0 17.3 27.9 12.2 14.5 24.8      27.9 10.8   B  21.4 10.5
10Z: 17.1      17.4           17.1           12.0 17.7 22.8        A  15.9   B  20.3 10.2
11Z: 16.8      16.2                17.4 31.8 12.2 15.8 22.8      32.3 17.8   B    C  11.6
12Z: 16.7 18.9 16.7 17.4 14.8 19.0      27.6 21.4 17.0 21.4      28.0 20.1   B  22.0 15.8
13Z:      19.0 15.8 18.1 15.6 20.4      21.3 16.9 17.6 17.7 14.4 21.3 19.5   B    C  17.7
14Z:           16.3 16.7 17.6           20.6 15.4 16.5 11.4 14.2 20.6 17.1   B  21.3 18.9
15Z: 16.1      16.3 19.5 15.6 16.5      18.7 18.9 18.1   A  16.4 18.7 16.5   A  22.9 16.3
16Z: 15.5 21.0 17.0 20.1 15.1 14.8      15.1 24.5 16.7   F  16.7 15.4 17.1   B       21.7
17Z: 14.3 20.3 17.5 16.8 16.2 14.7      16.5 21.9 15.7   F       16.5 17.7   B       18.8
18Z:      21.0 16.3 15.1 16.7 13.6           21.0 16.5   F  17.1      17.4   B  25.4 21.8
19Z:                                         23.4 17.3   F  16.5      19.8   A  20.6 23.7
20Z:                                         22.3 17.3 10.5 16.2      18.9 19.8 21.0 24.2
21Z:                                         23.1 17.4  9.0 16.5      19.2 20.3 19.8 23.4
22Z:                                         22.2 16.8 15.8           19.2 20.5 19.3 23.4
23Z:                                         26.2 18.3 16.8           19.8   B  17.5 23.4
===============================================
Estimated Average Global MUF(3000)F2: 18.25 MHz.


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

      TAO  PAL  SHE  OSA  CNV  BOU  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  210                 220  240  180
01Z:  220                 210  240  160
02Z:  250                 160  250  150
03Z:  280                 110  230  150
04Z:  300                  85  210  140
05Z:  310                  62       160
06Z:  320  410             59       180
07Z:  320  330             63  160  190
08Z:  340  320             65  150  170
09Z:  320  300             61  150  130
10Z:  250  240             56  160  110
11Z:  180                  61  160  100
12Z:  130  180             91  160  100
13Z:  110  130            120  200  110
14Z:   83  110            150       110
15Z:  100   79            180  270  120
16Z:   76   58            190  290  160
17Z:   78  110            200  300  190
18Z:   79  170            210  290  210
19Z:   76  210            230  290  210
20Z:   82  250            230  270  200
21Z:  100  280            220  270  190
22Z:  170  290            210  260  190
23Z:  200  350            200  250  190


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

MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
MAU = Maui HI                    USA                 (N20W157)
CAM = Camden                     Australia           (S34E151)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
TAO = Taoyuan                    Taiwan              (N25E121)
RES = Resolute Bay               Canada              (N74W094)
CHU = Churchill                  Canada              (N58W094)
KEA = Keakawapu HI               USA                 (N20W156)
RAM = Ramey AFB                  Puerto Rico         (N18W067)
BER = Bermuda                    Bermuda             (N32W064)
NIC = Nicosia                    Cyprus              (N35E033)
DYS = Dyess AFB TX               USA                 (N32W099)
PAL = Palehua HI                 USA                 (N21W158)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)
CNV = Cape Canaveral FL          USA                 (N28W080)
BOU = Boulder CO                 USA                 (N40W105)
ANC = Anchorage AK               USA                 (N61W150)


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.


