      SPX-456         OCTOBER 25, 1991


                              SPACEWARN Activities
            (All information in this publication was received between
                        September 25, and October 24, 1991.)


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

1991-074A (21759) GORIZONT 24    Oct 23	1991-068E (21732) COSMOS 2161    Sep 28
     073A (21746) PROGRESS M-10  Oct 17	     068D (21731) COSMOS 2160    Sep 28
     072A (21743) COSMOS 2164    Oct 10	     068C (21730) COSMOS 2159    Sep 28
     071A (21741) COSMOS 2163    Oct  9	     068B (21729) COSMOS 2158    Sep 28
     070A (21737) FOTON 4        Oct  4	     068A (21728) COSMOS 2157    Sep 28
     069A (21735) SOYUZ TM-13    Oct  2	     067A (21726) ANIK-E1        Sep 26
     068F (21733) COSMOS 2162    Sep 28	


B.  Text of Launching Announcements.

1991-074A  GORIZONT 24, a telecommunications satellite, was launched on
           October 23, 1991 by the U.S.S.R. using the PROTON carrier rocket.
           The satellite has been placed in a near-stationary orbit.  Initial
           orbital parameters: distance from the Earth's surface 36,003 km,
           period 24 hr 7 min, inclination 1.4 deg.

1991-073A  PROGRESS M-10 was launched on October 17, 1991 by the U.S.S.R.
           to deliver expendable material and other cargo to the space station
           MIR.  Initial orbital parameters: period 91.2 min, apogee 360 km,
           perigee 304 km, inclination 51.6 deg.  Docked with orbital station
           MIR on October 21, 1991.

1991-072A  COSMOS 2164 was launched on October 10, 1991 by the U.S.S.R. using
           the COSMOS launch vehicle to continue space research.  Initial
           orbital parameters: period 94.5 min, apogee 720 km, perigee 290 km,
           inclination 74 deg.

1991-071A  COSMOS 2163 was launched on October 9, 1991 by the U.S.S.R. to
           continue space research.  Initial orbital parameters: period
           89.3 min, apogee 331 km, perigee 174 km, inclination 64.8 deg.

1991-070A  FOTON 4 was launched on October 4, 1991 by the U.S.S.R. using the
           SOYUZ carrier rocket to continue space research on material
           technology.  The planned 16-day flight is scheduled to experiment
           on obtaining protein crystals and semiconductor materials
           under microgravity conditions.  The spacecraft also carries
           scientific apparatus devised by German and Franch specialists.
           Initial orbital parameters: period 90.6 min, apogee 417 km, perigee
           223 km, inclination 62.8 deg.

1991-069A  SOYUZ TM-13, with Soviet and Austrian astronauts on board, was
           launched on October 2, 1991 by the U.S.S.R.  Initial orbital
           parameters: period 90.2 min, apogee 312 km, perigee 276 km,
           inclination 51.6 deg.  SOYUZ M-13 docked with MIR on October 4, 1991.

1991-068F  COSMOS 2162
     068E  COSMOS 2161
     068D  COSMOS 2160
     068C  COSMOS 2159
     068B  COSMOS 2158
     068A  COSMOS 2157 were launched on September 28, 1991 by the U.S.S.R.
           using a TSIKLON carrier rocket to continue space research.  Initial
           orbital parameters: period 114.0 min, apogee 1438 km, perigee
           1401 km, inclination 82.6 deg.

1991-067A  ANIK-E1, a Canadian telecommunications satellite, was launched on
           September 26, 1991 from the Kourou Space Center, French Guiana,
           using the ARIANE booster rocket.  The spacecraft was placed in a
           transfer orbit of 35,952 km apogee, and 268 km perigee, with an
           inclination of 4 deg ,and immediately placed in a geostationary
           orbit at 111.1 deg W over the eastern part of the Pacific ocean.


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.  (Square bracketed indicate updated information since the last
issue.  SPACEWARN would appreciate suggestions to update this list.)

Acknowledgement:  SPACEWARN appreciates the updates, marked with an "*" in this
section, supplied by G. E. Perry, Cornwall, U.K.

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        [September 19, 1991]
GOES 2           136.38 MHz
                 [Location: 59.8 deg W]
                 [Inclination: 9.1 deg]
1978-012A        [September 28, 1991]
IUE              136.86 MHz
                 [Inclination: 33.004 deg]
1978-062A        [September 23, 1991]
GOES 3           136.38 MHz
                 [Location: 173.9 deg W]
                 [Inclination: 8.0 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        September 12, 1991
METEOSAT 2       137.078 MHz
                 Location: 10 deg W
                 Inclination: 4 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        [September 24, 1991]
MARECS-B2        137.17 MHz
                 [Location: 55.5 deg W]
                 [Inclination: 2.4 deg]
1984-123A        [October 12, 1991]
NOAA 9           137.62 MHz
                 [Inclination: 99.165 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        [October 9, 1991]
NOAA 10          137.50 MHz
                 [Inclination: 98.558 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        September 12, 1991         Transmits on command.
METEOSAT 3       137.080 MHz
                 Location: 50 deg 
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        [October 10, 1991]
NOAA 11          136.77 MHz
                 137.77 MHz
                 [Inclination: 99.043 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 deg
1990-023A        July 19, 1991             [* Not active, replaced by 1991-059A]
COSMOS 2061      149.94 MHz                [COSMOS 2154.]
                 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
[*1991-059A       September 29, 1991        Replacing 1990-023A COSMOS 2061, in]
[COSMOS  2154     149.94 MHz                plane #3 on September 4, 1991.]
                 [399.84 MHz]
                 [Inclination: 82.909 deg]


    2. Global Positioning System satellites useful for navigational purposes and
geodetic studies.  ("NNN" denotes no national name; italics indicate updated
information since the last issue.  SPACEWARN would appreciate suggestions to
update this list.)

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

1978-093A        September 7, 1991          Also known as GPS 3 (Global
NNN              1575.42 MHz                Positioning Satellite) and
                 1227.60 MHz                NAVSTAR 3.
                 Inclination 63.682 deg
1983-072A        September 8, 1991          Also known as NAVSTAR 8.
NNN              1575.42 MHz
                 1227.60 MHz
                 Inclination 63.601 deg
1984-059A        September 8, 1991          Also known as USA-1 and NAVSTAR 9.
NNN              1575.42 MHz
                 1227.60 MHz
                 Inclination 63.363 deg
1984-097A        September 9, 1991          Also known as NAVSTAR 10.
USA-5            1575.42 MHz
                 1227.60 MHz
                 Inclination 62.973 deg
1985-093A        September 8, 1991          Also known as NAVSTAR 11.
USA-10           1575.42 MHz
                 1227.60 MHz
                 Inclination 64.115 deg
1989-013A        August 17, 1991            Also known as GPS 2-1 (2nd
USA-35           1575.42 MHz                Generation Global Positioning
                 1227.60 MHz                Satellite) and  NAVSTAR 2-01.
                 Inclination 55.033 deg
1989-044A        August 19, 1991            Also known as GPS 2-2 and
USA-38           1575.42 MHz                NAVSTAR 2-02.
                 1227.60 MHz
                 Inclination 54.937 deg
1989-064A        July 9, 1991               Also known as GPS 2-3 and
USA-42           1575.42 MHz                NAVSTAR 2-03.
                 1227.60 MHz
                 Inclination 54.873 deg
1989-085A        July 6, 1991               Also known as GPS 2-4 and
USA-47           1575.42 MHz                NAVSTAR 2-04.
                 1227.60 MHz
                 Inclination 54.368 deg
1989-097A        August 24, 1991            Also known as GPS 2-5 and
USA-49           1575.42 MHz                NAVSTAR 2-05.
                 1227.60 MHz
                 Inclination 55.058 deg
1990-008A        August 23, 1991            Also known as GPS 2-6 and
USA-50           1575.42 MHz                NAVSTAR 2-06.
                 1227.60 MHz
                 Inclination 54.329 deg
1990-025A        August 24, 1991            Also known as GPS 2-7 and
USA-54           1575.42 MHz                NAVSTAR 2-07.
                 1227.60 MHz
                 Inclination 55.202 deg
1990-068A        August 23, 1991            Also known as GPS 2-8 and
USA-63           1575.42 MHz                NAVSTAR 2-08.
                 1227.60 MHz
                 Inclination 54.671 deg
1990-088A        August 24, 1991            Also known as GPS 2-9 and
USA-64           1575.42 MHz                NAVSTAR 2-09.
                 1227.60 MHz
                 Inclination 54.984 deg
1990-103A        September 4, 1991          Also known as GPS 2-10 and
USA-66           1575.42 MHz                NAVSTAR 2A-01.
                 1227.60 MHz
                 Inclination 54.893 deg
1991-047A        September 17, 1991         Also known as GPS 2-11 and
USA-71           1575.42 MHz                NAVSTAR 2A-02.
                 1227.60 MHz
                 Inclination 55.275


    3. Optical objects used for geophysical studies. (Square bracketed indicate
updated information since the last issue.  SPACEWARN would appreciate 
suggestions to update this list.)

Acknowledgement:  SPACEWARN appreciates the updates in this section supplied by
A. N. Winterbottom, Royal Society British National Committee on Space Research,
Optical Tracking Working Group.

             [1965-098C ALOUETTE 2 rocket     (gravitational field)]
             [1970-034B CHINA 1 rocket        (atmospheric winds)]
             [1971-016A COSMOS  398           (atmospheric winds, air density)]
             [1975-072B COS-B second stage    (atmospheric winds)]
             [1984-106A COSMOS 1603           (gravitational field)]
             [1985-100B METEOR 3-01 rocket    (gravitational field)]
             [1988-021B IRS-1A rocket         (gravitational field)]


    4. 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



    5. 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.)

        Objects predicted to decay within 60 days from October 17, 1991

                          Expected Decay Dates 1991

1961-OMI 138 (00418)           Nov  8	  1979-017KM (17825)             Oct 21
1963-022C  (00610)             Nov 22	  1981-053GS (13760)             Nov 30
1963-047R  (14529)             Oct 15	  1981-115A  (12968) BHASKARA 2  Dec  2
1965-082MV (03383)             Nov  2	  1986-017DE (21240)             Nov 12
1965-082PX (03466)             Dec  4	  1986-017DP (21414)             Oct 20
1965-082QU (03498)             Oct 30	  1986-017DS (21417)             Oct 30
1965-082TF (05376)             Dec 15	  1986-017DV (21425) MAK-1       Oct 18
1966-070B  (02404)             Dec  8	  1986-017EZ (21625)             Dec  4
1967-014N  (18929)             Nov 27	  1986-017FB (21627)             Dec  3
1967-039B  (02763)             Oct 26	  1986-019VB (19510)             Oct 27
1967-102B  (05376)             Dec 13	  1987-012A  (17480) ASTRO-C     Nov  2
1969-064AA (13914)             Oct 22	  1991-047B  (21553) LOSAT-X     Nov 20
1970-025AF (04646)             Oct 26	  1991-047C  (21554)             Oct 26
1970-025FF (04908)             Nov  1	  1991-051H  (21587)             Nov  9
1971-023D  (05120)             Nov 15	  1991-064A  (21735) SOYUZ TM-13 Nov 17
1972-011A  (05852) COSMOS 476  Oct 24	  1991-070B  (21738)             Oct 17
1978-026EJ (12289)             Nov 19	  1991-072C  (21745)             Oct 23
1979-017EK (17781)             Nov 10	  1991-073B  (21747)             Oct 18


    6. Actual decays.

                               Actual Decay Dates

                      1984-041E  (14944)       Dec  9, 1984
                      1986-007E  (16501)       Jun 17, 1986
                      1990-051C  (20645)       Jul 26, 1990

                            Actual Decay Dates 1991

1963-047R  (14529)             Oct 15	1986-017FD (21629)              Sep 30
1967-014N  (18928)             Sep 30	1987-020DK (20225)              Oct 12
1967-092G  (17176)             Oct  3	1990-054F  (20711)              Jan  2
1967-092J  (20652)             Sep 26	1990-077C  (20773)              Feb 16
1968-097AC (03685)             Oct  2	1990-079D  (20781)              Sep 28
1969-064AA (13914)             Oct 23	1990-091D  (20875)              Oct  2
1975-052EQ (21456)             Sep 30	1990-093C  (20920)              Mar  3
1975-052HJ (21564)             Oct  3	1990-094F  (20928)              May  2
1975-056A  (07968) COSMOS 744  Oct 12	1990-102E  (20957)              Jul  1
1976-074E  (09269)             Sep  9	1990-102F  (20958)              May  2
1976-116D  (09579)             Sep 19	1990-116E  (21044)              Jul 21
1978-026DE (12261)             Sep 27	1991-034A  (21311) SOYUZ TM-12  Oct 10
1978-042B  (10853)             Oct 21	1991-057A  (21662) PROGRESS M-9 Sep 30
1979-017KM (17825)             Oct 22	1991-065B  (21707)              Sep 30
1981-053DT (12774)             Oct  7	1991-065C  (21708)              Sep 25
1982-118B  (13737)             Oct  1	1991-065E  (21710)              Sep 27
1983-022B  (13924)             Oct 12	1991-065F  (21718)              Sep 27
1983-058F  (17331)             Mar  3	1991-065G  (21719)              Sep 25
1983-113C  (14554)             Oct  2	1991-065H  (21720)              Sep 25
1986-017DP (21414)             Oct 20	1991-069B  (21736)              Oct  3
1986-017DV (21425) MAK-1       Oct 18	1991-070A  (21737) FOTON 4      Oct 20
1986-017EG (21489)             Sep 23	1991-070B  (21738)              Oct 16
1986-017EV (21603)             Oct  5	1991-071B  (21742)              Oct 12
1986-017FA (21626)             Oct  3	1991-073B  (21747)              Oct 18
1986-017FC (21628)             Oct  7	1991-074C  (21761)              Oct 24&


D.  Launching Reports and Updated Information.

    1. Prelaunch announcement.  (This section covers only those reports that
are sent directly to us by the national agencies.)

Spacecraft Name:                Extreme Ultraviolet Explorer (EUVE)
Planned Launch Date:            January 16, 1992
Country:                        United States of America

Mission Description:  
    EUVE will conduct a survey of the entire celestial sphere in the extreme
    ultraviolet (UV) spectrum, 100 to 1000 angstrom units.  This is accomplished
    using four grazing incidence telescopes mounted on a spinning spacecraft
    whose spin axis is along the Sun line.  The axes of three telescopes sweep
    out a circle perpendicular to the Sun line for each revolution of the
    spacecraft.  The fourth telescope points in the anti-solar direction.  
    Data is taken only when the spacecraft is in the Earth's shadow.

Flight Profile:  
    EUVE will be placed into a near-circular orbit by a Delta 6920 vehicle.

Orbit:  
    Circular at 550 km altitude 6 28.5 deg (design orbit); 300-750 km, for
    science operations.  Period = 96 min.

SN/GN/DSN Operating Frequencies:

                                          Frequency (MHz)       Data Rate (kbps)
           System          Location     Receive     Transmit        RT     PB

    S_Band CMD/TRK (SN)       SC         2106.4         -        1/0.125    - 
    S_Band TLM/TRK (SN)       SC            -        2287.5      1/32      512
    S_Band CMD/TRK (GN)       SC         2106.4         -        2          -
    S_Band TLM/TRK (GN)       SC            -        2287.5      32        512

    PN code assignment for TDRSS S-Band link:  36


    2. Announcement of station acquisition.  (This section covers only those
reports that are sent directly to us by the national agencies.)

1991-060A (21668) BS-SB 
          Launched on August 25, 1991, was put into a geostationary orbit as
          indicated below:

          Spacecraft Name               Broadcasting Satellite-3B (BS-3B)
          Country                       Japan
          Date of Station Acquisition   September 10, 1991
          Perigee Height                35,776 km
          Apogee Height                 35,796 km
          Orbit Period                  23 hr 56 min
          Geographical Longitude        110 deg E
          Longitudinal Tolerance        Plus/Minus 0.1 deg (E-W, S-N)


    3. Update information.

1991-057A (21662) PROGRESS M-9
          The re-entry capsule has been successfully returned to a designated
          area in the U.S.S.R. on September 30, 1991.

1991-034A (21311) SOYUZ TM-12
          The landing vehicle with the Soviet and Austrian astronauts on board
          landed in Arkalyk, U.S.S.R. on October 10, 1991.
