From: cowdin@pogo.DEn.mmc.COM (Dave Cowdin)
Newsgroups: rec.radio.amateur.misc
Subject: $ANS-235 BULLETINS
Date: 23 Aug 1992 14:09:58 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

SB SAT @ AMSAT   $ANS-235.01
KO-23 STATUS REPORT

HR AMSAT NEWS SERVICE BULLETIN 235.01 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 22, 1992     BID:$ANS-235.01
TO ALL RADIO AMATEURS BT

KO-23 Commissioning Proceeds Smoothly

Jeff Ward (G0/K8KA) reports this week that except for a minor problem with
the low-powered transmitter aboard KO-23, everything has been proceeding
very smoothly.  The difficulty with low-powered transmitter appears to be
centered around its synthesizer.  At that point the KITSAT Ground Con-
trollers decided to switch to KO-23's high-powered transmitter.  Once the
switch was made, everything was back on track to get the gravity-gradient
(GG) boom extended.  During the night of August 18th, KO-23 had despun to
about one rotation every 4 minutes and that was considered to be safe
enough to extend the GG boom.  The GG boom is made of "measuring" tape
steel that is preformed so that once it extends from inside the spacecraft,
it then forms itself into a tubular shape.  On the the far end of the tape
is a 2.5 kg weight.  The GG boom provides a "restoring" torque that helps
keep KO-23's charged-coupled-device (CCD) camera lens pointed towards the
earth.  The GG boom is generally extended to a length of 6 meters.  At
12:13:30 UTC on August 18th the command was given to extend the boom and
from all indications that operation went flawlessly.  On the next night,
the "whole-orbit-data" (WOD) did confirm that the GG boom was keeping the
spacecraft nadir pointing.  Also, the WOD showed that the Attitude Determi-
nation Control & Stabilization (ADCS) software was working properly and had
damped out any residual spacecraft wobble motion using the magnetorquers.
With the task of achieving a stable attitude completed, the KITSAT Ground
Controllers next turned to the important task of uploading the necessary
software for the CCD cameras and taking pictures.

[The AMSAT News Service (ANS) would like to thank Jeff Ward (G0/K8KA) for
 the information which went into this bulletin.]

/EX
SB SAT @ AMSAT   $ANS-235.02
KO-23'S CAMERAS TAKE PICTURES

HR AMSAT NEWS SERVICE BULLETIN 235.02 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 22, 1992     BID:$ANS-235.02
TO ALL RADIO AMATEURS BT

KO-23's First Pictures Are Spectacular

The first pictures taken by KO-23's charged-coupled-device (CCD) cameras
were of the Antartic and the tip of Patagonia on August 19th at 17:40 UTC.
The image was excellent, displaying cloud formations with spectacular light-
ing effects because of the low sun angle.  Since that first picture, many
more have been taken earning the praise of all those who have processed
them.  Because KO-23 has a high resolution camera lens, it is referred to
as the narrow field-of-view (FOV) lens; likewise, the low resolution lens
is called the wide angle lens.  It is important to be aware of this because
the name of the image files stored aboard KO-23 follow this convention:
files that are named KAINxxxx are the high resolution, narrow FOV pictures.
Those that are named KAIWxxxx are for the low resolution, wide angle FOV
lens.  With the successful testing of the CCD cameras, all are now invited
to start downloading the image files stored aboard KO-23.  The KITSAT
Ground Controllers ask that those within the "foot-print" of HL0ENJ to
please not QRM the uplink when you observe the "NO -1" mesage on the down-
link.  This indicates that the HL0ENJ is uploading software and needs a
clear channel to accomplish the software load.

Since the CCD camera experiment appears to be going very well, the next or-
der of business in the commissioning of KO-23 is to start working with the
Digital Signal Processing Experiment (DSPE) and the Cosmic Ray Experiment
(CRE).  Stay tuned to the AMSAT Nets and the ANS bulletins for further up-
dates to the status of KO-23.

[The AMSAT News Service (ANS) would like to thank Jeff Ward (G0/K8KA) for
 the information which went into this bulletin.]

/EX
SB SAT @ AMSAT   $ANS-235.03
AMSAT-NA SPACE SYMPOSIUM INFO

HR AMSAT NEWS SERVICE BULLETIN 235.03 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 22, 1992     BID: $ANS-235.03
TO ALL RADIO AMATEURS BT

Pre-Registration & Hotel Reservations Necessary For AMSAT-NA Space Symposium

October 9-11th is the weekend of the 1992 AMSAT-NA Annual Meeting and Space
Symposium in Washington, DC.  Hotel reservations are going fast since there
are also other conventions in Washington, D.C. area that same weekend.  
DON'T MISS OUT by delaying your pre-registration for the Symposium.  Send your
registration and get your hotel reservations TODAY by using the pre-registration
form on page 19 of the latest issue of the AMSAT Journal or contact AMSAT-NA HQ at
(301) 589-6062.

/EX
SB SAT @ AMSAT   $ANS-235.04
AMSAT OPERATIONS NET SCHEDS

HR AMSAT NEWS SERVICE BULLETIN 235.04 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 22, 1992     BID: $ANS-235.04
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

29-Aug-92       1900   B         72     W9ODI   N7NQM
12-Sep-92       1600   B         79     W5IU    WA5ZIB
19-Sep-92       1830   B         71     WJ9F    VE2LVC

Guest commentators are planned for each Net.  Join the Net if you have
questions.  In the unlikely event that either the Net Control Station (NCS)
or the alternate do not call-up on frequency, any participant is invited to
act as NCS.

Slow Scan Television on AO-13

SSTV sessions will be held on UTC Saturdays and Sundays.  Mode J on a downlink
of 435.980 MHz, and Mode B immediately after Mode J on 145.960 MHz.  Sample
SSTV pictures in a *.exe format are available on AO-16, LO-19, and AMSAT
landline BBS at (214) 394-7438.

/EX
SB SAT @ AMSAT   $ANS-235.05
STS-47/SAREX SET FOR SEPTEMBER

HR AMSAT NEWS SERVICE BULLETIN 235.05 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 22, 1992     BID: $ANS-235.05
TO ALL RADIO AMATEURS BT

STS-47/SAREX Set For Mid-September Launch

Radio amateurs have another Shuttle Amateur Radio Experiment (SAREX) launch
to look forward to in early September.  The preliminary keplerian element set
is given below.  Plug these elements into your satellite tracking program and
you will observe that this will be a high orbital inclination shuttle mission.
This SAREX mission will provide radio amateurs many opertunities to make the
"ultimate DX contact."  Stay tuned to ANS bulletins and AMSAT Nets for updates
on the launch of STS-47.


          STS-47 PRE-LAUNCH PREDICTED KEPLERIAN ELEMENTS


STS-47
1 00047U          92255.65952351  .00092000  00000-0  29200-3 0    44
2 00047  57.0019 106.3148 0009301 264.7374  95.2615 15.90241453    28

Satellite: STS-47
Catalog number: 00047
Epoch time:      92255.65952351 =====> (11-SEP-92   15:49:42.83 UTC)
Element set:     JSC-004
Inclination:       57.0019 deg
RA of node:       106.3148 deg          Space Shuttle Flight STS-47
Eccentricity:     .0009301           Pre-launch SGP4 Keplerian Elements
Arg of perigee:   264.7374 deg        Launch:  11-SEP-92  14:23:00 UTC
Mean anomaly:      95.2615 deg
Mean motion:   15.90241453 rev/day                 W5RRR
Decay rate:     9.2000e-04 rev/day^2      NASA Johnson Space Center
Epoch rev:               2

/EX
SB SAT @ AMSAT   $ANS-235.06
AO-13 TRANSPONDER SCHEDULES

HR AMSAT NEWS SERVICE BULLETIN 235.06 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 15, 1992     BID: $ANS-235.06
TO ALL RADIO AMATEURS BT

G3RUH Provides Current & Future AO-13 Operating Schedules

 L G3RUH/DB2OS/VK5AGR  *** Future  AO-13 Transponder Schedule ***
 Mode-B  : MA   0 to MA  40 !     from  1992 Aug 17 - Sep 21
 Mode-S  : MA  40 to MA  50 !<- S transponder; B trsp. is OFF!
 Mode-LS : MA  50 to MA  55 !<- S beacon + L transponder
 Mode-JL : MA  55 to MA  70 !   This schedule operates
 Mode-B  : MA  70 to MA 256 !   every orbit, every day.
 Omnis   : MA 160 to MA  10 !     Blon/Blat 150/0

Mode B users are reminded that at MA 40, the Mode B transponder will be
heard to go OFF with a click.  Although you will still hear the Mode B bea-
con, do not attempt to uplink as you will get no Mode B response; however
you could interfere with Mode S.  Mode B returns at MA 70.

Note too that this schedule operates every orbit, every day.

The next event will commence on 1992 Sep 21 [Mon] with a move to attitude
180/0 with a B/JL/S schedule. The schedule will be as follows:

M G3RUH/DB2OS/VK5AGR  *** Future  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

/EX