************************************************************
      *                                                          *
      *   POLAR ORBITING UPDATE ( 137 Mhz. Transmissions Only )  *
      *                                                          *
      ************************************************************

***********************************************************************
*                                                                     *
*  The following compiled list has been verified by user's in the     *
*  United States during the observation periods indicated below.      *
*  This weekly update is provided as a service to DRIG members and    *
*  Datalink BBS user's. Should you upload this data to another BBS    *
*  please leave all the data within the document intact thus allowing *
*  credit to the Dallas Remote Imaging Group.                         *
*                                                                     *
***********************************************************************

OBSERVATION DATES 04/29/92 TO 04/30/92
**************************************


     NOAA POLAR ORBITING SATELLITES                      FREQUENCY
----------------------------------------------------------------------              
[X]  NOAA-09  Transmitting normal APT VIS/IR            137.620 Mhz. 

[X]  NOAA-10  Transmitting normal APT VIS/IR            137.500 Mhz. 

[X]  NOAA-11  Transmitting normal APT VIS/IR            137.620 Mhz. 

[X]  NOAA-12  Transmitting normal APT VIS/IR            137.500 Mhz. 


     METEOR SERIES SPACECRAFT                            FREQUENCY
----------------------------------------------------------------------
[ ]  METEOR 2-16 Inactive                               137.850 Mhz. 
                                                                     
[ ]  METEOR 2-17 Inactive                               137.850 Mhz. 

[ ]  METEOR 2-18 Inactive                               137.850 Mhz. 

[ ]  METEOR 2-19 Inactive                               137.850 Mhz. 

[X]  METEOR 2-20 Transmitting Normal APT VIS            137.850 Mhz. 
     Note: On board problem, No sync. bars and some
     image distortion in the sync bar area during 
     passes on 04/28/, 04/29, 04/30/1992

[ ]  METEOR 3-2  Inactive                               137.300 Mhz. 

[ ]  METEOR 3-3  Inactive                               137.300 Mhz. 

[X]  METEOR 3-4  Transmitting Normal APT VIS            137.300 Mhz. 
     Note: On board problems. during night time pass
     04/28/92 orbit 4882 this satellite was not heard
     from. It was however heard on 04/29/92 during
     it's AM east coast pass transmitting APT/VIS
     and on it's 0100 Z pass transmitting IR on 04/30/92  

[ ]  METEOR 3-5  Inactive                               137.300 Mhz. 
     Last heard on 03/23/92 transmitting on 137.400 Mhz.


     OKEAN SERIES SPACE CRAFT                            FREQUENCY
----------------------------------------------------------------------

[ ]  OKEAN-1     Inactive                               137.400 Mhz. 

[ ]  OKEAN-2     Inactive                               137.400 Mhz. 

[ ]  OKEAN-3     Inactive                               137.400 Mhz. 


     COSMOS SERIES SPACE CRAFT                           FREQUENCY
----------------------------------------------------------------------

[ ]  COSMOS-1602 Inactive                               137.280 Mhz. 
     Last heard on 09/14/90


     OTHER PLATFORMS                                     FREQUENCY
----------------------------------------------------------------------

[ ]  FENGYUN 1-2  Not heard during this period          137.795 Mhz.
     Last heard on 02/02/92 transmitting carrier only.
             

     Fom AV-Sync (404) 320-6202
     1200/2400/9600+ HAST/v.32/v.42