                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 01 DEC 92
                    ---------------------------------------


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

     UPS  BOU  VBG  GOO  EIE  TAO  KEA
     ---  ---  ---  ---  ---  ---  ---
00Z:      3.2  3.3   A   2.8  3.6  3.0
01Z:      3.2  3.2  3.2       3.3  3.1
02Z: 2.5  3.2  3.3  3.9  2.9  3.3  3.1
03Z:      3.2  3.8       2.9  3.2  3.1
04Z: 2.8  3.2  3.3   A   3.5  3.2  3.4
05Z: 2.8  3.3  2.5  2.9  2.9  3.1  3.6
06Z:      2.9  3.0  2.7  3.1  3.0  3.0
07Z:      3.0  3.5        A   3.0  3.3
08Z:      3.0  2.2   A   4.0  3.1  3.1
09Z:      2.7  3.6  3.3   A    R   3.0
10Z:      2.6  4.2        A   3.3  3.0
11Z:      2.8  2.3   B    B    R   3.0
12Z:      2.8  2.5  3.3   A    R   3.4
13Z:      2.9  2.6        A    R   3.2
14Z:           3.5        A    R   2.7
15Z:           3.5  3.3   A   3.1  2.5
16Z:           3.2        A   2.6  2.4
17Z:           3.8  3.2   B   2.6  3.1
18Z:           3.9   A    B   3.1
19Z:           3.4  3.2  2.8  3.3
20Z:           3.5       2.9  3.2
21Z:           3.8  3.4  2.9  3.1
22Z:           3.0   B   3.0  2.9
23Z:           2.9       3.0  3.3


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

      UPS  POI  BOU  OTI  VBG  GOO  EIE  TAO  CHU  KEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  4.8  3.9  9.2      10.3   A   5.8 10.2      13.3
01Z:       3.8  7.3       7.9  6.9      12.6      13.5
02Z:  3.4  3.8  6.2       7.5  4.4  5.5 13.3      12.2
03Z:  4.6  3.6  5.4       6.5       4.4 14.5      11.4
04Z:  4.2  3.4  5.0       9.2   A   4.1 15.0      12.1
05Z:  3.7  3.6  4.8       7.4  4.2  4.4 13.8       8.3
06Z:       4.2  3.6       8.8  5.5  4.8 13.4       5.0
07Z:       4.2  3.5       6.4        A  14.1       5.8
08Z:            3.3      11.1   A   6.7 15.0       4.5
09Z:            3.7       6.6  4.7   A    R        4.0
10Z:            3.6       6.9        A  14.1       4.2
11Z:            3.9       6.4   B    B    R        4.5
12Z:            3.9      11.4  5.4   A    R        4.8
13Z:            4.0  7.2  6.5        A    R        4.4
14Z:                 9.0  6.5        A    R    R   2.8
15Z:                 9.4 12.9  9.9   A   6.4   B   2.8
16Z:                11.2  9.1        A   5.5   C   3.0
17Z:                11.6  8.9 11.1   B   5.7   C   5.9
18Z:                11.6  9.5   A    B   5.8   C
19Z:                     12.0 10.4  4.4  5.6  8.5
20Z:                     10.3       4.7  4.7  9.5
21Z:                      9.9  6.8  5.2  3.7
22Z:                     10.3   B   5.7  3.9   I
23Z:                     11.8       6.1  8.5


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

      UPS  BOU  VBG  GOO  EIE  TAO  KEA
     ---- ---- ---- ---- ---- ---- ----
00Z:      29.0 34.0   A  16.2 36.7 39.9
01Z:      23.7 25.3 22.1      41.6 41.8
02Z:  8.3 19.8 24.8 17.2 16.0 43.9 37.8
03Z:      17.0 24.7      12.8 46.4 35.3
04Z: 11.8 16.0 30.4   A  14.3 48.0 41.1
05Z: 10.2 15.8 18.5 12.2 12.8 42.8 29.9
06Z:      10.4 26.4 14.9 14.9 40.2 15.0
07Z:      10.5 22.4        A  42.3 19.1
08Z:       9.7 24.4   A  26.8 46.5 13.9
09Z:      10.0 23.8 15.5   A    R  12.0
10Z:       9.4 29.0        A  46.5 12.6
11Z:      10.9 14.7   B    B    R  13.5
12Z:      10.7 28.5 17.8   A    R  16.3
13Z:      11.6 16.9        A    R  14.1
14Z:           22.8        A    R   7.6
15Z:           45.1 32.7   A  19.8  7.0
16Z:           29.1        A  14.3  7.2
17Z:           33.8 35.5   B  14.8 18.3
18Z:           37.0   A    B  18.0
19Z:           40.8 33.3 12.3 18.5
20Z:           36.0      13.6 15.0
21Z:           37.6 23.1 15.1 11.5
22Z:           30.9   B  17.1 11.3
23Z:           34.2      18.3 28.0


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

      BOU  TAO  ANC  CNV  OSA  PAL
     ---- ---- ---- ---- ---- ----
00Z:  350  460  330       8.0  650
01Z:  220       400  200   52  620
02Z:  160       360  160   83  550
03Z:            310  140  130  470
04Z:  110       220  120  210  400
05Z:   92       160  120  170  220
06Z:       730  130  120   17  120
07Z:       680  120  120       120
08Z:   64  530  120  110        86
09Z:   61  430  130  110        54
10Z:   59  440  130  120        54
11Z:   63  340  130  120        55
12Z:   61       130             59
13Z:   61  240  120  230        56
14Z:       200  120  310        38
15Z:       180  120  330        34
16Z:  220  150  120  370        34
17Z:  310  160  110  430        75
18Z:  410  180  130  480       250
19Z:  440  180  170  500
20Z:       140  210  470       490
21Z:  350  130  240  400       570
22Z:  320  200  290  350       670
23Z:  290  350  320  290       750


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

UPS = Uppsala                    Sweden              (N60E018)
POI = Poitiers                   France              (N46E000)
BOU = Boulder CO                 USA                 (N40W105) (GOES-2)
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) (ETS II)
CHU = Churchill                  Canada              (N58W094)
KEA = Keakawapu HI               USA                 (N20W156)
ANC = Anchorage AK               USA                 (N61W150) (GOES-3)
CNV = Cape Canaveral FL          USA                 (N28W080) (GOES-2)
OSA = Osan AB                    Korea               (N37E127) (ETS II)
PAL = Palehua HI                 USA                 (N21W158) (GOES-3)


DESCRIPTIVE CODES WHICH MAY APPEAR IN THE FOF2 AND M(3000) 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


     TEC 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.

