     SPX-459        JANUARY 27, 1992


                              SPACEWARN Activities
           (All information in this publication was received between
                     December 26, 1991 and January 26, 1992)


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

1992-004A (21851) PROGRESS M-11 Jan 25	1992-001A (21844) COSMOS 2175   Jan 21
     003A (21847) COSMOS 2176   Jan 24	1991-086E (21835) MAGION 3      Dec 18
     002A (21846) STS-42        Jan 22	     088A (21833) PRC 34        Dec 28


B.  Text of Launching Announcements.

1992-004A  PROGRESS M-11 was launched on January 25, 1992 by the C.I.S. to
           deliver expendable material and other cargo to the space station MIR.
           Initial orbital parameters: period 88.6 min, apogee 245 km, perigee
           190 km, inclination 51.6 deg.

1992-003A  COSMOS 2176 launched on January 24, 1992 by the C.I.S. to continue
           space research using the MOLNIYA launch vehicle.  Initial orbital
           parameters: period 11 hr 49 min, apogee 39,342 km, perigee 613 km,
           inclination 62.8 deg.

1992-002A  STS-42, the space shuttle Discovery, was launched on January 22, 1992
           by the U.S. Its mid-deck payload consists of the IML-1 (International
           Microgravity Laboratory 1), the first in a series of STS flights
           dedicated to microgravity research in materials and life sciences.
           Initial orbital parameters: period 90.5 min, apogee 305 km, perigee
           293 km, inclination 56.9 deg.

1992-001A  COSMOS 2175 launched on January 21, 1992 by the C.I.S. to continue
           space research using the SOYUZ launch vehicle.  Initial orbital
           parameters: period 88.6 min, apogee 373 km, perigee 173 km,
           inclination 67.1 deg.

1991-086E  MAGION 3 on December 28, 1991 separated from the orbiting spacecraft
           INTERCOSMOS 25.  The implementation of a comprehensive scientific
           program with the use of these two spacecraft and a network of
           geophysical observatories in various countries began after the
           separation.

1991-088A  PRC 34, a communications satellite, was launched on December 28, 1991
           by the PRC using the Long March 3 carrier rocket.  The satellite has
           been placed in a high elliptical orbit with an apogee of 35,176 km.


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 on MARECS-A supplied by
                 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/day.
                       Inclination: 14.0 deg
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)     *December 21, 1991
GOES 2                 136.38 MHz
                      *Location: 59.1 deg W
                      *Inclination: 9.4 deg
1978-012A (10637)     *December 26, 1991
IUE                    136.86 MHz
                      *Inclination: 33.201 deg
1978-062A (10953)     *November 2, 1991
GOES 3                 136.38 MHz
                      *Location: 174.1 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
*1981-122A (13010)    *December 15, 1991
 MARECS-A             *137.17 MHz
                      *Location 19.8 deg E
                      *Inclination 4.7 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)     *November 23, 1991
MARECS-B2              137.17 MHz
                      *Location: 55.6 deg W
                      *Inclination: 2.6 deg
1984-123A (15427)     *January 5, 1992
NOAA 9                 137.62 MHz
                      *Inclination: 99.158 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)     *January 5, 1992
NOAA 10                137.50 MHz
                      *Inclination: 98.549 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 W
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)     *January 5, 1992
NOAA 11                136.77 MHz
                       137.77 MHz
                      *Inclination: 99.059 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
1990-086A (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
COSMOS 2173            149.97 MHZ
                       388.84 MHz
                       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
USA-35                 1575.42 MHz                 (2nd 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.)

Designations, National Name                     Remarks

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.  (* indicates updated information since the last issue.  The magnitude
is an approximation; it assumes 75% illumination of the satellite and 900 km
range.  SPACEWARN would appreciate suggestions to update this list.)

Acknowledgement: SPACEWARN appreciates the updates in this section supplied by
                 Walter I. Nissen, Jr., of Capital Area Astronomers, Silver
                 Spring, Maryland.

                                              Visual
Designations, National Name                   Magnitudes Remarks

*1963-047A (00649) CENTAUR 2                     3.0
*1964-006A (00746) ELECTRON 1                    4.3
 1964-053A (00876) COSMOS 44                     +4.0     cylinder
*1965-008A (01001) TRANSTAGE 3                   3.3
*1965-034A (01359) TRANSTAGE 4                   3.3
 1965-089A (01726) GEOS 1                        ???     octahedron and pyramid,
                                                           0.81 x 1.22 m
*1965-106A (01843) COSMOS 100                    4.2
*1966-056H (08074) Debris of PAGEOS 1            1.6
*1968-110B (03598) R/B of OAO-A2                 3.0
 1968-002A (03093) GEOS 2                        ???     octahedron and pyramid,
                                                           0.81 x 1.22 m
*1970-089B (04597) R/B of COSMOS 374             3.3
*1970-091B (04622) R/B of COSMOS 375             3.3
*1970-103A (04786) COSMOS 382                    1.9
*1970-113A (04813) COSMOS 389                    3.5
*1971-016A (04966) COSMOS 398                    2.3/3.7
*1971-024A (05104) ISIS 2                        2.0
*1971-089A (05560) ASTEX                         3.2
*1971-093A (05580) PROSPERO                      4.3
*1972-065B (06155) R/B of COPERNICUS (OAO-3)     3.0
*1972-076A (06212) RADCAT 2                      2.7
*1974-029A (07291) COSMOS 651                    3.8
*1974-032A (07297) COSMOS 654                    3.5
 1975-027A (07734) GEOS 3                        ???     octahedron and pyramid,
                                                           1.11 x 1.22 m
*1975-124A (08519) METEOR 23                     4.5
 1976-039A (08820) LAGEOS                        ???     sphere, 0.6 m diameter
*1977-057A (10113) METEOR 1-28                   4.5
*1978-064A (10967) SEASAT 1                      3.0/3.5
*1978-067A (10973) COSMOS 1025                   3.5
*1980-087B (12069) R/B FLTSATCOM 4               3.0
*1980-089A (12054) COSMOS 1220                   2.4
*1980-098B (12445) R/B of INTELSAT 5 F-2         3.0
*1981-018B (12363) R/B of COMSTAR 4              3.0
*1981-046B (12465) R/B of COSMOS 1271           -1.6
*1981-050B (12497) R/B of INTELSAT 5 F-1         3.0
*1981-075A (12645) INTERCOSMOS (BULGARIA 1300)   4.0
*1981-119B (13007) R/B of INTELSAT 5 F-3         3.0
*1983-004A (13777) IRAS                          4.2
*1983-044A (14064) COSMOS 1461                   2.5
*1983-061A (14147) COSMOS 1470                   3.0
*1983-099A (14372) COSMOS 1500                   4.0
*1983-115A (14521) COSMOS 1510                   4.5
*1983-122A (14551) COSMOS 1515                   2.7
*1984-013A (14699) COSMOS 1536                   3.8
*1984-027A (14819) COSMOS 1544                   1.8
*1984-106A (15333) COSMOS 1603                   3.5
*1984-106G (17358) R/B (4) of COSMOS 1603        2.9
*1984-108B (15354) ERBS                          4.5
*1984-111A (15369) COSMOS 1606                   4.3
*1984-122A (15423) USA-6 (KH 11-6)               2.5
*1985-042D (15772) R/B (4) of COSMOS 1656        2.9
*1985-047A (15821) COSMOS 1660                   4.8
*1985-097B (16182) R/B of COSMOS 1697            2.5
*1986-017A (16609) MIR                          -0.4
*1986-019C (16615) R/B of SPOT 1/VIKING          3.2
*1986-055A (16881) COSMOS 1766                   3.3
*1986-061A (16908) EGP                           4.3
*1986-061C (16910) R/B of EGP/JAS-1              2.8
*1986-094A (17177) COSMOS 1803                   4.7
*1987-011A (17369) COSMOS 1818                   3.3
*1987-018B (17528) R/B of MOS-1                  3.1
*1987-020A (17535) COSMOS 1823                   4.8
*1987-027B (17590) R/B of COSMOS 1833            2.5
*1987-041B (17974) R/B of COSMOS 1844            2.5
*1987-060A (18187) COSMOS 1867                   3.3
*1987-090A (18441) USA-27 (KH 11-7)              2.5
*1988-039B (19120) R/B of COSMOS 1943            2.5
*1988-056A (19274) OKEAN 1                       3.3
*1988-078A (19460) USA-32                        3.3
*1988-078B (19461) R/B of USA-32                 3.3
*1988-099A (19625) USA-33 (KH 11-8)              2.5
*1988-102B (19650) R/B of COSMOS 1980            0.7
*1988-106B (19671) USA-34 (LACROSSE)             1.8
*1989-026A (19911) USA-36 (DELTA STAR)           2.7
*1989-058A (20147) COSMOS 2033                   2.4
*1989-068A (20196) COSMOS 2037                   4.4
*1989-080A (20261) INTERCOSMOS 24/ACTIVE         3.3
*1989-089A (20322) COBE                          1.8/2.5
*1990-005H (20443) R/B of SPOT-2                 3.1
*1990-013D (20491) R/B of MOS-1B                 3.1
*1990-019B (20516) USA-53                        2.0
*1990-021A (20523) INTELSAT-6 F3                 3.0
*1990-022A (20525) COSMOS 2060                   2.4
*1990-037B (20580) HST                          -0.8
*1990-046B (20625) R/B of COSMOS 2082            2.5
*1990-049A (20638) ROSAT                         3.2/4.5
*1990-058A (20683) GAMMA                         3.2
*1990-075A (20765) COSMOS 2069                   2.4
*1990-097B (20963) USA-67                        2.0
*1990-108A (20985) COSMOS 2107                   2.4
*1990-111B (21015) R/B of COSMOS 2112            2.5
*1991-005A (21065) COSMOS 2122                   2.4
*1991-017A (21147) USA-69 (LACROSSE 2)           1.8
*1991-017B (21148) R/B of USA-69 (LACROSSE 2)    2.9
*1991-024A (21213) ALMAZ-1                       2.2
*1991-027B (21225) GRO                           2.8
*1991-050F (21610) R/B of ERS-1                  3.1
*1991-055A (21653) INTELSAT 6 F-5                3.0


    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 January 16, 1992

Designations, National Name     1992     Designations, National Name      1992

1962-A APL4 (00313)             Jan 19   1991-051B  (21581) MICROSAT-2    Jan 24
1973-080A   (06907) COSMOS 604  Jan 18   1991-051C  (21582) MICROSAT-3    Jan 24
1975-004GD  (09682)             Jan 16   1991-051D  (21583) MICROSAT-4    Jan 22
1981-028BD  (13681)             Jan 20   1991-051F  (21585) MICROSAT-6    Jan 25
1984-021C   (14782)             Jan 20   1991-051G  (21586) MICROSAT-7    Jan 24
1991-051A   (21580) MICROSAT-1  Jan 24

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

1968-097EH (17668)              Feb  9   1977-065Q  (10186)               Feb  9
1970-025L  (04608)              Jan 26   1980-051A  (11848) METEOR 1-30   Mar  6
1970-025BS (04704)              Jan 27   1981-053JB (14399)               Jan 31
1970-025NU (14468)              Jan 29   1986-017FX (21810)               Feb 27
1970-025PM (18419)              Jan 21   1986-019CX (17315)               Jan 22
1971-015BK (05336)              Feb 16   1986-019LD (17698)               Feb 14
1972-058JF (14875)              Feb 27   1991-051E  (21584) MICROSAT-5    Jan 24
1972-058JH (14877)              Feb 11   1991-072B  (21744)               Mar  7
1975-033A  (07752) ARIABAT      Feb  7

    6. Actual decays.

Designations, National Name     1991     Designations, National Name      1991

1961-OMI 206 (00662)            Dec 27   1978-026FX (14457)               Dec 26
1975-004HM   (19053)            Dec 27   1986-019DQ (17343)               Dec 27
1975-052DP   (21431)            Dec 11   1990-038B  (20582)               Dec 30
1975-052DU   (21436)            Dec 19   1991-085B  (21817)               Dec 22
1975-052HY   (21672)            Dec 24

Designations, National Name     1992     Designations, National Name      1992

1962-A APL4  (00313)            Jan 19   1991-051A  (21580) MICROSAT-1    Jan 23
1966-070B    (02404)            Jan  3   1991-051B  (21581) MICROSAT-2    Jan 23
1973-080A    (06907) COSMOS 604 Jan 19   1991-051C  (21582) MICROSAT-3    Jan 24
1975-004GD   (09682)            Jan 16   1991-051D  (21583) MICROSAT-4    Jan 23
1975-052GJ   (21513)            Jan  4   1991-051F  (21585) MICROSAT-6    Jan 25
1980-030T    (12345)            Jan  9   1991-051G  (21586) MICROSAT-7    Jan 23
1981-028BD   (13681)            Jan 21   1991-073A  (21746) PROGRESS M-10 Jan 20
1984-021C    (14782)            Jan 21   1991-078A  (21787) COSMOS 2171   Jan 17
1986-017EA   (21482)            Jan  7   1991-078C  (21843)               Jan 18
1986-019CW   (17314)            Jan  6   1992-001B  (21845)               Jan 24
1990-049B    (20639)            Jan 15



D.  Launching Reports and Updated Information.

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

Spacecraft Name:            TELECOM-2A
Country:                    France - launching pad in KOUROU (French Guiana)
Launching Agency:           CNES (Centre National d'Etudes Spatiales
Launcher:                   Ariane 44L
Obrit Type:                 Geostationary
Orbital Position:           3 deg EST
Initial On-Station Mass:    1380 km

                  Transmitting Frequencies and Orbit Power

          C-Band (6/4 GHz)        10 transponders - 10 Watts each
          Ku-Band (14/12 GHz)     11 transponders - 55 Watts each
          X-Band (8/7 GHz)         5 transponders - 20 and 40 Watts

Expected Life Duration:  10.25 years

Spacecraft Mission:
    TELECOM-2 is a family of three communcations satellites: A, B, and C.
    The objectives of TELECOM-2A are to succeed the TELECOM-1 family (which
    reaches its end of life) providing for telephone, FAX, TV, and data
    transfer services between mainland and French overseas departments;
    government communications; high-rate data transfer for professional
    applications of French industrial firms; and TV retransmission for
    commercial channels.


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

Spacecraft Name:      ATLAS-1 (Atmospheric Laboratory for Applications and
                               Science-1)
Planned Launch Date:  March 14, 1992
Country:              United States of America

Mission Description: 
    The Spacelab Atmospheric Laboratory for Applications and Science (ATLAS)
    mission is a configured payload complement of experiments previously flown
    on the early Spacelab missions.  The ATLAS-1 payload consists of experiments
    for atmospheric physics, plasma physics, solar physics, astronomy, and Earth
    observations.  The Spacelab configuration consists of two pallets and an
    IGLOO which contains the standard Command and Data Management System
    elements.

Flight Profile:
    a)  STS Flight:     STS-45
    b)  Launch Site:    Kennedy Space Center
    c)  Landing Site:   Kennedy Space Center
    d)  Inclination:    57.0 deg
    e)  Altitude:       296 km (160 nmi)
    f)  Duration:       8 days


SN/GN Operating Frequencies:
                                Frequency (MHz)         Data Rates (kbps)
System        Location        Receive    Transmit           RT        PB	

S-Band (GN)   Shuttle      2041.9/          -            72/32          -
                           2106.4  
TTC&V         Shuttle      2041.9/          -            72/32          -
                           2106.4                                       -
                                -        2217.5/        192/96
                                         2287.5
K-Band        Shuttle           -          15.0034     Mode 1 (PM)   (note 2)
TLM                                        GHz          (note 2)
(TDRSS)
(note 1)
                                                       Mode 2 (FM)   (note 3)
                                                        (note 3)
K-Band        Shuttle        13.774         -            Mode 1         -
CMD                          GHz                        (note 4)
(TDRSS)
                                                         Mode 2
                                                        (note 5)
VHF Voice     Shuttle       259.7/        259.7/      Simplex voice     -
                            296.8         296.8
Radar         Ground          5.4-        Skin            Pulse         -
                              5.9 GHz     track


    3. Update information.

1985-001A (15464) SAKIGAKE
       SAKIGAKE made its nearest approach to Earth, reaching a geocentric
       distance of 90,000 km over the Indian ocean at 14:00 UT January 8, 1992,
       and entered a new orbit similar to the Earth's around the Sun.

1987-022A (17561) GOES 7
       GOES 7 is being moved to 112 deg west, and will arrive on station by
       April 23, 1992.

1991-073A (21746) PROGRESS M-10
       Undocked from MIR on January 20, 1992.  Capsule with geophysical
       research data parachuted and landed in the landing area designated for
       C.I.S. spacecraft.

1991-085A (21816) Unknown
       The spacecraft is now named COSMOS 2174.

    The planned launch date of EUVE announced in SPX-456 has been changed to
May 28, 1992.
