From: 70524.2272@CompuServe.COM (Dave Cowdin)
Newsgroups: rec.radio.amateur.misc
Subject: $ANS-319 BULLETINS
Date: 15 Nov 92 20:47:25 GMT
Article-I.D.: CompuSer.921115204724_70524.2272_DHP45-1
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu
Originator: daemon@ucsd.edu

SB SAT @ AMSAT   $ANS-319.01
AO-13 TRANSPONDER SCHED CHANGE

HR AMSAT NEWS SERVICE BULLETIN 319.01 FROM AMSAT HQ
SILVER SPRING, MD NOVEMBER 14, 1992   BID:$ANS-319.01
TO ALL RADIO AMATEURS BT

G3RUH Wants To Remind All AO-13 Users Of Transponder Schedule Change

Magnetorquing from spacecraft attitude Blon/Blat of 180/0 to 210/0 will
commence on Saturday 21-Nov-92 at 23:58 UTC, Orbit 3400 (MA=224), and
will continue for 4 perigees.

Estimated interim attitudes will be (+/- 5 degrees):

Orbit Blon/Blat Orbit Blon/Blat Orbit Blon/Blat Orbit Blon/Blat
===============================================================
 3401  190/-5    3402   197/-3   3403  203/-2    3404  210/0

The new schedule will be uploaded during Mode-L, Orbit 3404.  So 3404
(only) will contain two Mode J/L/S sessions: MA 130-160 and 180-210.

Magnetorquing is not an exact science, and during this time there is (and
always has been) the possibility of unnanounced temporary operational
changes to facilitate dealing with problems arising.  In the past this has
included transponders OFF, and mode changes.

Operational plans for 1993 are being finalized and will be announced
shortly.

The upcoming AO-13 operating schedule is as follows:

L G3RUH/DB2OS/VK5AGR  ***  Future AO-13 Transponder Schedule ***
Mode-B  : MA   0 to MA 180 !     from  1992 Nov 23 - Dec 14/21
Mode-S  : MA 180 to MA 190 !<- S transponder; B trsp. is OFF!
Mode-LS : MA 190 to MA 195 !<- S beacon + L transponder
Mode-JL : MA 195 to MA 210 !        Blon/Blat 210/0
Mode-B  : MA 210 to MA 256 !   Modes J/L/S OFF Dec 14 - 21
Omnis   : MA 245 to MA  80 !  Move to attitude 130/0, Dec 21

Please don't uplink on Mode B during MA 180-190 because it will interfere
with Mode S operations.

Don't rely on gossip and rumour!  Continuous up-to-date information about
AO-13 operations is always available on the beacons, 145.812 MHz, 435.658
MHz and 2400.646 MHz in CW, RTTY and 400 bps PSK.

/EX
SB SAT @ AMSAT   $ANS-319.02
WA3PSD PROVIDES WO-18 STATUS

HR AMSAT NEWS SERVICE BULLETIN 319.02 FROM AMSAT HQ
SILVER SPRING, MD NOVEMBER 14, 1992   BID: $ANS-319.02
TO ALL RADIO AMATEURS BT

WA3PSD Provides Current Status On WEBERSAT-OSCAR-18 (WO-18) 

As winter approaches, imaging on WO-18 is pushed farther south of the
magnetic equator.  In upcoming weeks, expect to see images of Northern
Australia, the coast of Peru and Chile, the southern tip of India and Lake
Victoria being generated.  Additionally, a group of students at Weber State
University (WSU) have chosen to develop an extensive telemetry analysis
program for their senior project.  There are many gigabytes of telemetry
downloaded from WO-18 on file at WSU because students have virtually never 
missed capturing data on at least one pass per day since launch.  A program
incorporating a complete statistics package, and which is also capable of
extracting and analyzing individual telemetry parameters from the mass of
data on file should prove valuable, far beyond completing these senior's
project requirement for graduation.

One of the areas which WA3PSD hopes to see the students at WSU explore is
the performance of the individual battery cells in the total battery pack
and to see how it compares with that observed immediately after launch.  This
will be valuable data for all the MICROSATs and all future OSCARs.  WA3PSD
comments that it will be interesting to see how far the the student team
goes with their project.  

[The AMSAT News Service (ANS) would like to thank Chris Williams (WA3PSD)
 of WSU for this bulletin item.]

/EX
SB SAT @ AMSAT   $ANS-312.03
AMSAT OPERATIONS NET SCHEDS

HR AMSAT NEWS SERVICE BULLETIN 312.03 FROM AMSAT HQ
SILVER SPRING, MD NOVEMBER 7, 1992    BID: $ANS-312.03
TO ALL RADIO AMATEURS BT

AMSAT-NA Operations Net Schedule

AMSAT Operations Nets are planned for the following times.  Mode B Nets
are conducted on AO-13 on a downlink frequency of 145.950 MHz and the Mode
J/L Nets on a downlink of 435.970 MHz.

 Date           UTC    Mode     Phs     NCS     Alt

28-Nov-92       1550   B       217      VE2LVC  W9ODI
 6-Dec-92       1400   B       118      N7NQM   W5IU
19-Dec-92       1400   B       185      WB6LLO  W9ODI

Any stations with information on current events would be most welcome.  In
the unlikely event that either the Net Control Station (NCS) or the
alternate do not call on frequency, any participant is invited to act as
the NCS.

Slow Scan Television on AO-13

SSTV sessions will be held on Saturdays and Sundays (UTC).  Mode J on a
downlink of 435.980 MHz, and Mode B immediately after Mode J on 145.960
MHz.  OPS NETS will take priority so look for SSTV activity immediately
after they conclude.

/EX
SB SAT @ AMSAT   $ANS-319.04
CURRENT OSCAR STATUS REPORT

HR AMSAT NEWS SERVICE BULLETIN 312.04 FROM AMSAT HQ
SILVER SPRING, MD NOVEMBER 14, 1992    BID: $ANS-319.04
TO ALL RADIO AMATEURS BT

Current OSCAR Status Report: 11/14/92

       FO-20: Date: 11/14/92: Will be in Mode JA SSB voice mode on
       Wednesdays.  The following is the schedule of Mode JA operations:

             18-Nov-92 01:05 UTC -to- 19-Nov-92 01:25 UTC
             25-Nov-92 01:30 UTC -to- 26-Nov-92 00:00 UTC

       At all other times the Mode JD BBS will be in operation.
       Mode JA Uplink passband is 145.900-146.000 MHz. Downlink passband
       is 435.900-435.800 MHz. Mode JA is an inverting transponder.
       The Mode JA beacon can be heard at 435.795 MHz.  [JJ1WTK/KD2BD]

       AO-21: Date: 11/14/92: FM Transponder in operation for 9 minutes
       with 400 baud PSK telemetry transmissions for 1 minute.  This cycle
       repeats every hour of everyday.  Uplink frequency is 435.016 MHz
       and downlink frequency is 145.987 MHz FM.  [WD0HHU]

       AO-13: Date: 11/14/92: Note the following A0-13 Transponder Schedule
       M G3RUH/DB2OS/VK5AGR  *** Current AO-13 Transponder Schedule ***
       Mode-B  : MA   0 to MA 130 !     from  1992 Sep 21 - Nov 23
       Mode-S  : MA 130 to MA 140 !<- S transponder; B trsp. is OFF!
       Mode-LS : MA 140 to MA 145 !<- S beacon + L transponder
       Mode-JL : MA 145 to MA 160 !   This schedule operates
       Mode-B  : MA 160 to MA 256 !   every orbit, every day.
       Omnis   : MA 235 to MA  30 !     Blon/Blat 180/0
       Magnetorquing from attitude Blong/Blat 180/0 to 210/0 will commence
       on Nov 21 [Sat] 23:58 UTC, Orbit 3400, MA 224, and will continue for
       4 perigees.  Next ZRO Test: 11/21/92 Mode JL 435.945 MHz 09:05 UTC

       DO-17: Date: 11/14/92: S/W reload continuing.  S-Band transmitter
       in use. An intense effort is underway to get the 2M packet beacon
       running again. [WD0E]

       AO-16: Date: 11/14/92: The Raised Cosine (RC) transponder is in use.
       The downlink frequency is 437.050 MHz.  WD0E suggest users set their
       antennas to Right Hand Circular (RHC) polarization.  As of Nov. 10th,
       AO-16 appears to be operating normally with the new PB.EXE soft-
       ware. [WH6I]

       UO-22: Date: 11/14/92: Operating normally, very busy and no recent
       Earth Imaging System (EIS) pictures. [WH6I]

       KO-23: Date: 11/14/92: G0/K8KA reports that there are several new
       images worth downloading.  One of the images shows the coastline
       of Burma, Laos, Thailand, and Bangladesh.  The "narrow" image is
       well-exposed and cloud free, but difficult to locate exactly.
       These images are named KAIN002B and KAIW002B.  They are certainly
       worth downloading.  [G0/K8KA]

       MIR: Date: 11/14/92: G3IOR reports that MIR is QRV again.  The cos-
       monauts have been very busy with space station attitude control pro-
       blems which has also been giving them problems with their scientific ex-
       periemnts aboard.  Thus, they had been forced toconserve power and turn
       off the packet station.  However, Pat reports that U6MIR-1 is back
       again on its downlink frequency of 145.550 MHz FM. [G3IOR]

       LO-19: Date: 11/14/92: The Raised Cosine Transmitter is in use on
       437.1255 MHz.  For broadcast downloads, use the PB.EXE version
       910509m and for directory and file uploads, use PG.EXE version
       910207r.  On Mondays LO-19 is active for the broadcast bulletin
       experiments.  [LU8DYF]

       RS-10/11: Date: 11/14/92: Andrey Mironov, a long time ground con-
       troller at RS3A reports that RS-10 will always stay in Mode A and
       RS-12 will will always be in Mode K.  Andrey also stated that
       there are no plans to change transponders in the near future.
       [FD1RQH]

       RS-12/13: Date: 11/14/92: The RS-12 CW beacon could be heard on
       29.408 MHz.  The satellite had many users last weekend. [N3KVQ]

       WO-18: Date 11/14/92: Imaging continues as usual. The current
       transmitter is still on 437.1040 MHz using the RC TX.  [WA3PSD]

The AMSAT NEWS Service (ANS) is looking for volunteers to contribute weekly
OSCAR status reports.  If you have a favorite OSCAR which you work
regularly and would like to contribute to this bulletin, please send in
your observations to WD0HHU at his CompuServe address of 70524,2272, on
INTERNET at wd0hhu@amsat.org, or to his local packet BBS in the Denver, CO
area, WD0HHU @ W0LJF.#NECO.CO.USA.NOAM.  Also, if you find that the current set
of orbital elements are not generating the correct AOS/LOS times at your QTH, 
PLEASE INLCUDE THAT INFORMATION AS WELL.  The information you provide will
be of value to all OSCAR enthusiasts.

/EX


Distribution:
  Martha Saragovitz [70244,2302]
  ANS >INTERNET:ans@amsat.org
  Bill Tynan [70323,2750]
  Ron Pogue [71036,1001]
Newsgroups: rec.radio.amateur.misc