SB ALL    @ AMSAT  $ANS-254.05
AO-13 and FO-12 Ops Sked

HR AMSAT NEWS SERVICE BULLETIN 254.05 FROM WA2LQQ
WARWICK, NY  September 10, 1988
TO ALL RADIO AMATEURS BT

Here is the AO-13 operating schedule currently in use.  This schedule will
remain in effect until September 21 when a new schedule will be implemented.
Deviations from this schedule may occur to facilitate important engineering
tests.

            Revised Operating Schedule: V3.2 10Sep88
  +---------------------------------------------------------------+
  |  Mode  |  From  |   Thru  |       Remarks        |  Duration  |
  |        |(Inclus)| (Inclus)|                      | MA  Minutes|
  |========|========|=========|====================================
  | Off    | MA 241 | MA  002 | Solar eclipse window | 18   48.3  |
  | Mode B | MA 003 | MA  099 |                      | 97  260.2  |
  | Mode L | MA 100 | MA  150 | Mode JL optional     | 51  136.8  |
  | Mode B | MA 151 | MA  240 |                      | 90  241.4  |
  | Mode S | MA 123 | MA  134 | Beacon; Xpndr 9/17,18| 12   32.2  |
  | RUDAK  |        |         | Testing; ops pending |            |
  +--------------------------------------------------+------------|

Mode S beacon will run concurrent with Mode L but, for power budget reasons,
will cause Mode J to be turned off during Mode S beacon operations.  The omni
antennas are enabled from MA 224 thru 032.  Based on estimates by G3RUH,
AO-13's attitude as of 10 September was BLON=182.8 and BLAT=-1.8. James says
the rate of change of the Bahn Coordinates due to natural movements of the
orbit is BLON +0.0 deg/day and BLAT -0.1 deg/day.  On or about 19 September,
the attitude will be changed to BLON=210 and BLAT=+5 to respond to seasonal
sun angle changes says DB2OS.

Here is the FO-12 operating schedule for September as provided by JARL.

Mode    Beginning
      Date    Time
JA    10 Sep  0543
D     12      0150
JD*   14      0000
JD    14      0610
DI    15      0516
JD    17      0124
DI    18      0435
JD    21      0355
DI    22      0301
JD    24      0314
DI    25      0220
JA    27      0234
D     28 Sep  0140

*On September 14 from 0000 to 0204, telemetry acquisition will be done every 2
seconds and the mailbox function will be disabled.  A QSL card will be sent to
those submitting telemetry data.  Send to JARL HQ, 1-14-2 Sugamo, Toshimo-ku,
Tokyo 170, Japan.

JD = Digital mode
JA = Analog mode
D  = All systems off
DI = Systems off except CPU and memory

The transponders will be off at other times. The actual operating schedule may
change due to unexpected situations such as variations in available power.
Mode JA Beacon: 435.795 MHz. Mode JD Beacon: 435.910 MHz.