     SPX-454         AUGUST 27, 1991


                              SPACEWARN Activities
            (All information in this publication was received between         
                          July 25 and August 26, 1991.)


A.  List of New International Designations and Launch Dates.  (HQ USSPACECOM
Catalog numbers are in parentheses.)

1991-060A (21668) BS-3B          Aug 25  1991-055A (21653) INTELSAT 6 F-5 Aug 14
     059A (21666) COSMOS 2154    Aug 22       054B (21639) TDRS-F5        Aug  2
     058A (21664) RESURS-F13     Aug 21       054A (21638) STS-43         Aug  2
     057A (21662) PROGRESS M-9   Aug 20       053A (21630) MOLNIYA-1      Aug  1
     056A (21655) METEOR/TOMS    Aug 15
                   (METEOR 3-5)


B.  Text of Launching Announcements.

1991-060A  BS-3B (Broadcasting Satellite-3B) was launched, utilizing the H-I
           launch vehicle (H23F), from Tanegashima Space Center of National
           Space Development Agency of Japan at 08:40 UT on August 25, 1991.
           Tentative orbital parameter: period 664 min, apogee 37,491 km,
           perigee 179 km, inclination 28.7 deg.  The satellite is operating
           normally, the spacecraft's nickname is YURI-3B.

1991-059A  COSMOS 2154 was launched on August 22, 1991, by the U.S.S.R. using
           the COSMOS booster rocket.  Initial orbital parameters: period
           104.9 min, apogee 1021 km, perigee 991 km, inclination 82.9 deg.

1991-058A  RESURS-F13 was launched on August 21, 1991, by the U.S.S.R. using the
           SOYUZ booster rocket to continue the research of the Earth's natural
           resources.  Initial orbital parameters: period 88.8 min, apogee
           272 km, perigee 195 km, inclination 82.3 deg.

1991-057A  PROGRESS M-9 was launched on August 20, 1991, by the U.S.S.R. to
           deliver expendable material and other cargo to the space station MIR.
           Initial orbital parameters: period 88.6 min, apogee 246 km, perigee
           192 km, inclination 51.6 deg.

1991-056A  METEOR/TOMS (METEOR 3-5), a meteorological satellite, was launched
           on August 15, 1991, by the U.S.S.R. using the TSIKLON booster rocket.
           The spacecraft also carries a U.S. built Total Ozone Mapping 
           Spectrometer (TOMS) on a joint U.S. and Soviet mission to study the 
           ozone layer.  Initial orbital parameters: period 109.4 min, apogee 
           1219 km, perigee 1196 km, inclination 82.6 deg.

1991-055A  INTELSAT 6 F-5, an International mammoth communications satellite,
           was launched on August 14, 1991, from the Kourou Space Center, French
           Guiana, using the ARIANE booster rocket.  The satellite will be
           placed at an altitude of 36,000 km above the equator, at 14.5 deg W
           over the Atlantic Ocean.  Initial orbital parameters: period
           743.8 min, apogee 35,789 km, perigee 5881 km, inclination 3.3 deg.

1991-054B  TDRS-F5 was deployed from the orbiting STS-43 on August 2, 1991.
           Initial orbital parameters: period 710.3 min, apogee 34390 km,
           perigee 793 km, inclination 0.0 deg.

1991-054A  STS-43, the space shuttle Atlantis was launched on August 2, 1991,
           by the United States.  Initial orbital parameters: period 90.6 min,
           apogee 329 km, perigee 309 km, inclination 28.4 deg.  STS-43 landed
           at Kennedy Space Center on August 11, 1991.

1991-053A  MOLNIYA-1, a communications satellite, was launched on August 1,
           1991, by the U.S.S.R. using the MOLNIYA booster rocket.  The
           satellite has been placed in a highly elliptical orbit with the
           following initial orbital parameters: period 12 hr 17 min, apogee
           40,681 km in the northern hemisphere, perigee 653 km in the southern
           hemisphere, inclination 62.9 deg.


C.  Spacecraft Particularly Suited for International Participation (Category I).

    1. Spacecraft with essentially continuous radio beacons on frequencies less
than 150 MHz, or higher frequencies if especially suited for ionospheric or
geodetic studies.  ("NNSS" denotes U.S. Navy Navigational Satellite System;
those bracketed indicate updated information since the last issue.  SPACEWARN
would appreciate suggestions to update this list.)

Designation,     Epoch, Frequency, Power,
National Name    and Orbit Information      Remarks

1966-110A        June 16, 1988              Weak signals.
ATS 1            137.35 MHz                 VHF translator on ~12 hr/day.
                 Inclination: 14.0 deg
1967-111A        June 16, 1988              Weak signals.
ATS 3            136.37 MHz
                 137.35 MHz
                 Location: 105 deg W
                 Inclination: 12.1 deg
1973-081A        September 15, 1988         Operational transit.
OSCAR (NAV) 20   150 MHz at 0.75 W          (Also known as NNSS 30200)
                 400 MHz at 1.25 W
                 Inclination: 89.9 deg
1975-100A        June 29,1991
GOES 1           136.38 MHz  
                 Location: 81.2 deg W
                 Inclination: 10.5 deg
1977-048A        June 27, 1991
GOES 2           136.38 MHz
                 Location: 59.6 deg W
                 Inclination: 9.0 deg
1978-012A        June 19, 1991
IUE              136.86 MHz
                 Inclination: 32.890 deg
1978-062A        June 16, 1991
GOES 3           136.38 MHz
                 Location: 175.0 deg W
                 Inclination: 7.8 deg
1981-044A        March 4, 1991              Removed from service 0204 UT, March
NOVA I           150 MHz at 3.00 W          3, 1991.  Switched to maintenance
                 400 MHz at 5.00 W          frequency at 2127 UT, March 4, 1991.
                 Inclination: 90.0 deg      (Also known as NNSS 30480)
1981-057A        May 15, 1991               Turned on when beacon of METEOSAT 3
METEOSAT 2       137.078 MHz                is turned off and vice versa.
                 Location: 10.2 deg W
                 Inclination: 4.2 deg
1984-110A        September 15, 1988         Operational transit.
NOVA III         150 MHz at 3.00 W          (Also known as NNSS 30500)
                 400 MHz at 5.00 W
                 Inclination: 90.0 deg
1984-114B        June 27, 1991
MARECS-B2        137.17 MHz
                 Location: 55.5 deg W
                 Inclination: 2.2 deg
1984-123A        June 30, 1991
NOAA 9           137.62 MHz
                 Inclination: 99.168 deg
1985-066B        February 26, 1991          Switched to maintenance frequency
OSCAR (NAV) 30   150 MHz at 1.00 W          and placed in on-orbit storage
                 400 MHz at 2.00 W          2048 UT, February 26, 1991.
                 Inclination: 89.9 deg      (Also known as NNSS 30300)
1986-073A        June 30, 1991
NOAA 10          137.50 MHz
                 Inclination: 98.560 deg
1986-086A        July 18, 1991
COSMOS 1791      150 MHz
                 400 MHz
                 Inclination: 82.945 deg
1986-088A        September 15, 1988         Experimental.
POLAR BEAR       150 MHz at 0.75 W          (Also known as NNSS 30170)
                 400 MHz at 1.25 W
                 Inclination: 89.9 deg
1987-080A        December 5, 1988           Operational transit.
OSCAR (NAV) 27   150 MHz at 0.75 W          (Also known as NNSS 30270)
                 400 MHz at 1.25 W
                 Inclination: 90.3 deg
1987-080B        February 7, 1991           Operational transit.
OSCAR (NAV) 29   150 MHz at 0.75 W          (Also known as NNSS 30290)
                 400 MHz at 1.25 W
                 Inclination: 90.3 deg
1988-033A        January 31, 1989           Operational transit.
OSCAR (NAV) 23   150 MHz at 0.75 W          (Also known as NNSS 30230)
                 400 MHz at 1.25 W
                 Inclination: 90.4 deg
1988-033B        February 26, 1991          Operational transit.
OSCAR (NAV) 32   150 MHz at 1.00 W          (Also known as NNSS 30320)
                 400 MHz at 2.00 W
                 Inclination: 90.4 deg
1988-051A        February 7, 1991           Turned on when beacon of METEOSAT 2
METEOSAT 3       137.080 MHz                is turned off and vice versa.
                 Location: 3 deg W
1988-052A        September 15, 1988         Operational transit.
NOVA II          150 MHz at 3.00 W          (Also known as NNSS 30490)
                 400 MHz at 5.00 W
                 Inclination: 90.0 deg
1988-074A        September 15, 1988         Stored in orbit at an offset
OSCAR (NAV) 25   150 MHz at 0.75 W          frequency.
                 400 MHz at 1.25 W          (Also known as NNSS 30250)
                 Inclination: 90.0 deg
1988-074B        March 8, 1990              Stored in orbit at an offset
OSCAR (NAV) 31   150 MHz at 1.00 W          frequency.
                 400 MHz at 2.00 W          (Also known as NNSS 30310)
                 Inclination: 98.971 deg
1988-089A        June 28, 1991
NOAA 11          136.77 MHz
                 137.77 MHz
                 Inclination: 99.031 deg
1989-017A        July 18, 1991
COSMOS 2004      149.94 MHz
                 399.84 MHz
                 Inclination: 82.955 deg
1989-042A        July 18, 1991
COSMOS 2026      149.97 MHz
                 399.92 MHz
                 Inclination: 82.941 deg
1990-017A        July 18, 1991
NADEZHDA-2       150 MHz
                 400 MHz
                 Inclination: 82.955
1990-023A        July 19, 1991
COSMOS 2061      149.94 MHz
                 399.84 MHz
                 Inclination: 82.936 deg
1990-036A        July 19, 1991
COSMOS 2074      149.91 MHz
                 399.76 MHz
                 Inclination: 82.944 deg
1990-083A        July 18, 1991
COSMOS 2100      149.97 MHz
                 399.92 MHz
                 Inclination: 82.938 deg
1991-007A        July 18, 1991
COSMOS 2123      150 MHz
                 400 MHz
                 Inclination: 82.923 deg
1991-019A        July 18, 1991
NADEZHDA-3       150 MHz
                 400 MHz
                 Inclination: 82.929 deg
1991-029A        July 18, 1991
COSMOS 2142      150.03 MHz
                 400.08 MHz
                 Inclination: 82.953 deg


    2. Optical objects used for geophysical studies.  (These objects are also
suitable for studies of air density and atmospheric winds.  Additional research
interest is indicated by + for gravitational fields.  SPACEWARN would appreciate
suggestions to update this list.)

                       + 1965-098C ALOUETTE  2 (rocket)
                         1970-034B CHINA 1     (rocket)
                         1971-016A COSMOS  398
                       + 1984-106A COSMOS 1603
                       + 1988-021B IRS-1A      (rocket)


    3. Satellites useful for simultaneous observation programs with small
cameras.  ("NNN" Denotes no national name.  SPACEWARN would appreciate
suggestions to update this list.)

                              Apogee   Perigee
                       Incl    (km)     (km)    Magn      Remarks

1963-049A  NNN         89.9    1086     1060     +5   cylinder, 4.8 x 1.4 m
1964-001A  NNN         69.9     927      904     +5   cylinder, 8 x 1.5 m
1964-053A  COSMOS 44   65.1     817      608     +4   cylinder
1965-070F  COSMOS      56.1    1515     1357     +5   rocket body
1965-073F  COSMOS      56.1    1686     1387     +5   rocket body
1965-089A  GEOS 1      59.4    2275     1113          octahedron and pyramid,
                                                        0.81 x 1.22 m
1968-002A  GEOS 2     105.8    1570     1082          octahedron and pyramid,
                                                        0.81 x 1.22 m
1975-027A  GEOS 3     115.0     858      818          octahedron and pyramid,
                                                        1.11 x 1.22 m
1976-039A  LAGEOS     109.8    5946     5837          sphere, 0.6 m diameter


    4. Satellite objects that are nearing their decay into the atmosphere.
(Orbital observations of these objects during the decaying phase are useful for
atmospheric studies.  Note: For maneuverable spacecraft the prediction may be
invalid.  This section will not appear when information is not available.)


    5. Actual decays.

                            Actual Decay Dates 1985

                        1975-009D                   Sep 30


                            Actual Decay Dates 1990

                        1976-127A   (MOLNIYA 3-6)   Feb  6


                            Actual Decay Dates 1991

1961-OMI 168                Aug 20	1987-020DC                  Aug 18
1964-006AE                  Aug  6	1987-022B                   Aug  4
1965-082AU                  Aug 13	1989-100AF                  Aug 14
1967-014L                   Aug 19	1989-100AG                  Aug 13
1970-025LU                  Aug  6	1990-061E                   Aug 24
1970-089DB                  Jul  6	1990-081C      (PRC 32)     Jul 24
1971-015CX                  Jul 31	1990-104T                   Jul 22
1972-058JK                  Jul 22	1991-038A   (PROGRESS M-8)  Aug 16
1975-052BA                  Jul 31	1991-044C                   Jul 21
1975-052FJ                  Jul  5	1991-044D                   Aug 10
1975-052GG                  Jul 10	1991-044E                   Jul 23
1976-120AF                  Aug  1	1991-044F                   Jul 25
1976-120BA                  Aug 14	1991-044G                   Jul 28
1981-028F                   Aug  6	1991-044H                   Jul 23
1983-044AG                  Aug 17	1991-048A   (COSMOS 2152)   Jul 23
1986-017DH                  Aug 21	1991-048C                   Jul 27
1986-017DJ                  Jul 24	1991-048D                   Jul 31
1986-017DM                  Aug 11	1991-048E                   Jul 25
1986-017DR                  Aug 14	1991-048F                   Jul 24
1986-017DT                  Aug  8	1991-048G                   Jul 26
1986-017DX                  Aug 12	1991-052A   (RESURS-F12)    Aug  8
1986-017DY                  Aug 19	1991-052B                   Jul 25
1986-017ED                  Aug  5	1991-052C                   Aug 12
1986-017EN                  Aug 14	1991-052D                   Aug 10
1986-017EW                  Aug 15	1991-052F                   Aug 15
1986-017EY                  Aug 19	1991-052G                   Aug 11
1986-017FF                  Aug 13	1991-054A     (STS-43)      Aug 11
1986-017FG                  Aug 12	1991-057B                   Aug 22
1986-017FH                  Aug 21	1991-058B                   Aug 23
1986-073C                   Aug  4


D.  Launching Reports and Updated information.

    1. Updated Information.

1991-050A (21574) ERS-1
        Initial orbital parameters: period 100.5 min, apogee 808 km, perigee
        781 km, inclination 98.5 deg.

1991-050B (21575) UOSAT-F
        Launched by ESA for United Kingdom. Orbital parameters not available.

1991-050C (21576) ORBCOMM-X
        Launched by ESA for United States.  Orbital parameters not available.

1991-050D (21577) TUBSAT
        Launched by ESA for Germany.  Orbital parameters not available.

1991-050E (21578) SARA
        Launched by ESA for France.  Orbital parameters not available.

1991-051A (21580) MICROSAT 1
        Launched by United States.  Initial orbital parameters: period 92.7 min,
        apogee 454 km, perigee 356 km, inclination 82.0 deg.

1991-051B (21581) MICROSAT 2
        Launched by United States.  Initial orbital parameters: period 92.7 min,
        apogee 457 km, perigee 359 km, inclination 82.0 deg.

1991-051C (21582) MICROSAT 3
        Launched by United States.  Initial orbital parameters: period 92.5 min,
        apogee 442 km, perigee 355 km, inclination 82.0 deg.

1991-051D (21583) MICROSAT 4
        Launched by United States.  Initial orbital parameters: period 92.7 min,
        apogee 457 km, perigee 359 km, inclination 82.0 deg.

1991-051E (21584) MICROSAT 5
        Launched by United States.  Initial orbital parameters: period 92.7 min,
        apogee 457 km, perigee 360 km, inclination 82.0 deg.

1991-051F (21585) MICROSAT 6
        Launched by United States.  Initial orbital parameters: period 92.7 min,
        apogee 458 km, perigee 359 km, inclination 82.0 deg.

1991-051G (21586) MICROSAT 7
        Launched by United States.  Initial orbital parameters: period 92.7 min,
        apogee 458 km, perigee 359 km, inclination 82.0 deg.
