     SPX-458        DECEMBER 26, 1991


                                SPACEWARN Activities
             (All information in this publication was received between
                        November 25, and December 25, 1991.)


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

1991-087A (21821) RADUGA 28      Dec 19	1991-076D (21808) USA-76         Nov  8
     086A (21819) INTERCOSMOS 25 Dec 18	     080B (21805) USA-75         Nov 24
     085A (21816) Unknown        Dec 17	     083A (21803) EUTELSAT-II F3 Dec  7
     084B (21814) INMARSAT-2 F3  Dec 16	     076C (21799) USA-74         Nov  8
     084A (21813) TELECOM-2A     Dec 16	     082A (21798) USA-73         Nov 28
     076E (21809) USA-77         Nov  8	     081A (21796) COSMOS 2173    Nov 27


B.  Text of Launching Announcements.

1991-087A  RADUGA 28, a telecommunications satellite, was launched on December
           19, 1991 by the U.S.S.R. using the PROTON launching rocket.  Initial
           orbital parameters: period 24 hr 32 min, distance from the Earth 
           36,500 km, inclination 1.5 deg.

1991-086A  INTERCOSMOS 25, also known as APEX, was launched on December 18, 1991
           by the USSR using the TSIKLON launcher rocket to study high solar
           activity near the Earth, similar to the ACTIVE mission.  Initial
           orbital parameters: period 121.7 min, apogee 3080 km, perigee 440 km,
           inclination 82.5 deg.  It also carried a Czech subsatellite called
           MAGION 3.

1991-085A  An unknown spacecraft was launched on December 17, 1991 by the
           U.S.S.R.

1991-084B  INMARSAT-2 F3 was launched on December 16, 1991 from the Kourou Space
           Center.

1991-084A  TELECOM-2A was launched on December 16, 1991 from the Kourou Space
           Center.  Initial orbital parameters: period 764.8 min, apogee
           35,769 km, perigee 6910 km, inclination 1.9 deg.

1991-076E  USA-77 was launched on November 8, 1991 by the U.S.

1991-076D  USA-76 was launched on November 8, 1991 by the U.S.

1991-080B  USA-75 was deployed from the orbiting STS-44 on November 24, 1991.

1991-083A  EUTELSAT-II F3 was launched on December 7, 1991 by the ESA.  Initial
           orbital parameters: period 996.4 min, apogee 41,008 km, perigee
           12,347 km, inclination 17.0 deg.

1991-076C  USA-74 was launched on November 8, 1991 by the U.S.

1991-082A  USA-73 (Defense Meteorological Satellite Program F-11) was launched
           on November 26, 1991 by the U.S. using an ATLAS E booster rocket.
           Initial orbital parameters: period 101.9 min, apogee 870 km, perigee
           846 km, inclination 98.9 deg.

1991-081A  COSMOS 2173 was launched on November 27, 1991 by the U.S.S.R. using
           the COSMOS carrier rocket.  Initial orbital parameters: period
           104.8 min, apogee 1030 km, perigee 965 km, inclination 82.9 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.  (* indicates updated information since the last issue.
SPACEWARN would appreciate suggestions to update this list.)

Acknowledgement: SPACEWARN appreciates the updates in this section supplied by
                 G.E. Perry, Cornwall, U.K., and Piero Beni, IROE-CNR, Firenze,
                 Italy.

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

1966-110A (02608)       June 16, 1988                 Weak signals.
ATS 1                   137.35 MHz                    VHF translator on ~12 hr/
                        Inclination: 14.0 deg         day.
1967-111A (03029)       June 16, 1988                 Weak signals.
ATS 3                   136.37 MHz
                        137.35 MHz
                        Location: 105 deg W
                        Inclination: 12.1 deg
1973-081A (06909)       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 (08366)       June 29,1991
GOES 1                  136.38 MHz  
                        Location: 81.2 deg W
                        Inclination: 10.5 deg
1977-048A (10061)       September 19, 1991
GOES 2                  136.38 MHz
                        Location: 59.8 deg W
                        Inclination: 9.1 deg
1978-012A (10637)       September 28, 1991
IUE                     136.86 MHz
                        Inclination: 33.004 deg
1978-062A (10953)       September 23, 1991
GOES 3                  136.38 MHz
                        Location: 173.9 deg W
                        Inclination: 8.0 deg
1981-044A (12458)       March 4, 1991                 Stored in orbit at 
NOVA I                  150 MHz at 3.00 W             maintenance frequency.
                        400 MHz at 5.00 W             Also known as NNSS 30480.
                        Inclination: 90.0 deg
1981-057A (12544)       September 12, 1991            *VHF beacon switched off
METEOSAT 2              137.078 MHz                    on December 3, 1991.
                        Location: 10 deg W
                        Inclination: 4 deg
1984-110A (13562)       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 (13586)       September 24, 1991
MARECS-B2               137.17 MHz
                        Location: 55.5 deg W
                        Inclination: 2.4 deg
1984-123A (15427)       October 12, 1991
NOAA 9                  137.62 MHz
                        Inclination: 99.165 deg
1985-066B (15936)       February 26, 1991             Stored in orbit at
OSCAR (NAV) 30          150 MHz at 1.00 W             maintenance frequency.
                        400 MHz at 2.00 W             Also known as NNSS 30300.
                        Inclination: 89.9 deg
1986-017A (16609)       October 27, 1991
MIR                     145.550 MHz
                        Inclination 51.604 deg
1986-073A (16969)       October 9, 1991
NOAA 10                 137.50 MHz
                        Inclination: 98.558 deg
1986-086A (17066)       July 18, 1991
COSMOS 1791             150 MHz
                        400 MHz
                        Inclination: 82.945 deg
1986-088A (17070)       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
1987-054A (18129)       October 27, 1991
COSMOS 1861             29.357 MHz
                        29.403 MHz
                        29.407 MHz
                        Inclination 82.926 deg
1987-080A (18361)       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 (18362)       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 (19070)       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 (19071)       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 (19251)       September 12, 1991            Transmits on command.
METEOSAT 3              137.080 MHz 
                        Location: 50 deg 
1988-052A (19223)       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 (19419)       September 15, 1988            Stored in orbit at an 
OSCAR (NAV) 25          150 MHz at 0.75 W             offset frequency.
                        400 MHz at 1.25 W             Also known as NNSS 30250.
                        Inclination: 90.0 deg
1988-074B (19420)       March 8, 1990                 Stored in orbit at an 
OSCAR (NAV) 31          150 MHz at 1.00 W             offset frequency.
                        400 MHz at 2.00 W             Also known as NNSS 30310.
                        Inclination: 98.971 deg
1988-089A (19531)       October 10, 1991
NOAA 11                 136.77 MHz
                        137.77 MHz
                        Inclination: 99.043 deg
1989-017A (19826)       July 18, 1991
COSMOS 2004             149.94 MHz
                        399.84 MHz
                        Inclination: 82.955 deg
1989-042A (20045)       July 18, 1991
COSMOS 2026             149.97 MHz
                        399.92 MHz
                        Inclination: 82.941 deg
1990-017A (20508)       July 18, 1991
NADEZHDA-2              150 MHz
                        400 MHz
                        Inclination: 82.955 deg
1990-036A (20577)       July 19, 1991
COSMOS 2074             149.91 MHz
                        399.76 MHz
                        Inclination: 82.944 deg
1990-083A (20804)       July 18, 1991                 *Not active, replaced by
COSMOS 2100             149.97 MHz                     1991-081A COSMOS 2173.
                        399.92 MHz
                        Inclination: 82.938 deg
1990-086A (20826)       October 27, 1991
METEOR 2-20             137.850 MHz
                        Inclination 82.530 deg
1991-007A (21089)       July 18, 1991
COSMOS 2123             150 MHz
                        400 MHz
                        Inclination: 82.923 deg
1991-019A (21152)       July 18, 1991
NADEZHDA-3              150 MHz
                        400 MHz
                        Inclination: 82.929 deg
1991-029A (21230)       July 18, 1991
COSMOS 2142             150.03 MHz
                        400.08 MHz
                        Inclination: 82.953 deg
1991-030A (21232)       October 27, 1991
METEOR 3-4              137.300 MHz
                        Inclination: 82.548 deg
1991-032A (21236)       October 28, 1991
NOAA 12                 137.500 MHz
                        Inclination: 98.723 deg
1991-059A (21666)       September 29, 1991
COSMOS 2154             149.94 MHz
                        399.84 MHz
                        Inclination: 82.909 deg
*1991-081A (21796)      December 13, 1991             Replacing 1990-083A COSMOS
 COSMOS 2173            149.97 MHZ                    2100, in plane #4 on
                        388.84 MHz                    December 11, 1991.
                        Inclination: 82.955 deg



    2. Global Positioning System satellites useful for navigational purposes and
geodetic studies.  ("NNN" denotes no national name.  SPACEWARN would appreciate
suggestions to update this list.)

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

1978-093A (11054)       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 (14189)       September 8, 1991           Also known as NAVSTAR 8.
NNN                     1575.42 MHz
                        1227.60 MHz
                        Inclination: 63.601 deg
1984-059A (15039)       September 8, 1991           Also known as USA-1 and
NNN                     1575.42 MHz                 NAVSTAR 9.
                        1227.60 MHz
                        Inclination: 63.363 deg
1984-097A (15271)       September 9, 1991           Also known as NAVSTAR 10.
USA-5                   1575.42 MHz
                        1227.60 MHz
                        Inclination: 62.973 deg
1985-093A (16129)       September 8, 1991           Also known as NAVSTAR 11.
USA-10                  1575.42 MHz
                        1227.60 MHz
                        Inclination: 64.115 deg
1989-013A (19820)       August 17, 1991             Also known as GPS 2-1 (2nd 
USA-35                  1575.42 MHz                 Generation Global 
                        1227.60 MHz                 Positioning Satellite) and
                        Inclination: 55.033 deg     NAVSTAR 2-01.
1989-044A (20061)       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 (20185)       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 (20302)       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 (20361)       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 (20452)       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 (20533)       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 (20724)       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 (20830)       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 (20959)       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 (21552)       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. (SPACEWARN would appreciate
suggestions to update this list.)

1965-098C (01807) ALOUETTE 2 rocket             (gravitational field)
1970-034B (04392) CHINA 1 rocket                (atmospheric winds)
1971-016A (04966) COSMOS  398                   (atmospheric winds, air density)
1975-072B (08063) COS-B second stage            (atmospheric winds)
1984-106A (15333) COSMOS 1603                   (gravitational field)
1985-100B (16194) METEOR 3-01 rocket            (gravitational field)
1988-021B (18961) 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 (00730) NNN         89.9   1086    1060   +5   cylinder, 4.8 x 1.4 m
1964-001A (00727) NNN         69.9    927     904   +5   cylinder, 8 x 1.5 m
1964-053A (00876) COSMOS 44   65.1    817     608   +4   cylinder
1965-070F (01575) COSMOS      56.1   1515    1357   +5   rocket body
1965-073F (01589) COSMOS      56.1   1686    1387   +5   rocket body
1965-089A (01726) GEOS 1      59.4   2275    1113        octahedron and pyramid,
                                                           0.81 x 1.22 m
1968-002A (03093) GEOS 2     105.8   1570    1082        octahedron and pyramid,
                                                           0.81 x 1.22 m
1975-027A (07734) GEOS 3     115.0    858     818        octahedron and pyramid,
                                                           1.11 x 1.22 m
1976-039A (08820) 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 December 12, 1991

                            Expected Decay Dates 1991

1967-045C  (02823)             Dec 20	1975-004CJ (09000)             Dec 13
1967-102B  (03011)             Dec 18	1986-017DZ (21481)             Dec 16
1970-089BN (05295)             Dec 16	1986-017EX (21619)             Dec 16

         (The above space objects have since decayed, see Section C.6)

1961-OMI 206 (00662)           Dec 25	1978-028FX (14457)             Dec 26
1966-070B  (02404)             Dec 25	1986-019DQ (17343)             Dec 26
1975-004HM (19053)             Dec 26	1990-038B  (20582)             Dec 26

                            Expected Decay Dates 1992

1986-017EA (21482)             Jan  4	1962-A ALP4 (00313)            Jan 18
1986-019CW (17314)             Jan  6	1991-051D   (21583) MICROSAT-4 Jan 19
1980-030T  (12345)             Jan  7	1991-051B   (21581) MICROSAT-2 Jan 20
1991-051C  (21582) MICROSAT-3  Jan 10	1991-051F   (21585) MICROSAT-6 Jan 20
1975-004GD (09682)             Jan 12	1977-065Q   (10186)            Jan 25
1984-021C  (14782)             Jan 16	1991-051E   (21584) MICROSAT-5 Jan 25
1973-080A  (06907) COSMOS 604  Jan 17	1970-025BS  (04704)            Jan 30
1990-049B  (20639)             Jan 17	1970-025L   (04608)            Feb  7
1991-051G  (21586) MICROSAT-7  Jan 17	1975-033A   (07752) ARIABAT    Feb  7


    6. Actual decays.

                            Actual Decay Dates 1991

1965-082TF (05376)              Dec  7	1986-017DZ (21481)              Dec 16
1967-045C  (02823)              Dec 21	1986-017EX (21619)              Dec 18
1967-102B  (03011)              Dec 19	1986-017EZ (21625)              Dec  6
1969-082JR (05757)              Dec 20	1986-017FB (21627)              Dec  3
1969-082KX (17661)              Dec 20	1989-085C  (20304)              Dec  5
1970-025LM (05508)              Nov 23	1989-100AH (21767)              Nov 23
1970-089BN (05295)              Dec 16	1989-100AM (21771)              Nov 22
1970-089DA (15782)              Dec  8	1989-100AN (21772)              Nov 29
1972-058CC (07934)              Dec  8	1989-100AP (21773)              Nov 27
1975-004CJ (09000)              Dec 13	1989-100AQ (21774)              Dec  6
1975-052GR (21520)              Nov 21	1991-078B  (21788)              Nov 24
1975-052HZ (21673)              Nov 11	1991-071A  (21741) COSMOS 2163  Dec  7
1975-052JB (21675)              Dec  1	1991-080A  (21795) STS-44       Dec  1
1978-093B  (11078)              Dec 25	1991-087B  (21822)              Dec 21
1981-060A  (12556) MOLNIYA 1-50 Dec 14	1991-087C  (21823)              Dec 20
1981-115A  (12968) BHASKARA 2   Nov 30


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.)

Spacelab:              IML-1 (International Microgravity Laboratory)
Planned Launch Date:   January 22, 1992
Country:               United States of America

Mission Description:
    The Spacelab International Microgravity Laboratory mission has a configured
    payload complement primarily of experiments previously flown on Spacelab
    misssions.  The IML-1 payload consists of experiments that will conduct
    selected science, technology, and application investigations that require
    the low Earth orbit with emphasis on experiments that investigate the effect
    of microgravity on material and life science processes.  The Spacelab
    configuration consists of the long module.



Flight Profile:
    a. STS Flight:    STS-42
    b. Launch Site:   Kennedy Space Center
    c. Landing Site:  Edwards Air Force Base
    d. Inclination:   57.0 deg
    c  Altitude:      302 km (163 nmi)
    f. Duration:      7 days

Communications:
    All IMP-1 communications with ground are via the Shuttle RF links.


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

Spacecraft Name:     Japanese Earth Resources Satellite-1 (JERS-1)
Planned Launch Date: February 3, 1992
Country:             Japan
Orbit Type:          Sun Synchronous Orbit

Period         Apogee          Perigee        Inclination         Weight

ca.96 m       ca.568 km       ca.568 km        ca.98 deg          ca.1.4T
                                                             (beginning of life)

       Coverage Cycle Duration     Time of Descending Node Equator Crossing

               44 days                         10:30 - 11:00 am

              Nominal Transmitting Frequencies and Output Power

                            2220 MHz    0.21/0.054 w
                            1275 MHz          1490 w
                       8150/8350 MHz            20 w/ch

Probability of Survival in 2 years:  More than 0.7
Launching Organization:  National Space Development Agency of Japan
Spacecraft Mission:  1)  To verify functions and performance of optical sensors
                         and a synthetic aperture radar and to establish an
                         integrated system for observing Earth's resources.
                     2)  To perform observations and measurements for land
                         survey, agriculture, forestry, fishery, environmental
                         preservation, disaster prevention, and coastal 
                         surveillance.


    3. Update information.

1991-080A (21795) STS-44
       Initial orbital parameters: period 91.6 min, apogee 368 km, perigee
       361 km, inclination 28.4 deg.  The space shuttle Atlantis landed at
       Edwards Air Force Base, California, on December 1, 1991.

1991-079A (21789) COSMOS 2172
       Initial orbital parameters: period 1463.2 min, apogee 36,334 km, perigee
       36,304 km, inclination 1.4 deg.

1991-078A (21787) COSMOS 2171
       Initial orbital parameters: period 89.1 min, apogee 306 km, perigee
       186 km, inclination 62.8 deg.
