[net.ham-radio] UoSAT Bulletin 106

karn@petrus.UUCP (01/05/85)

Posted: Fri  Jan  4, 1985   2:32 PM GMT              Msg: CGIF-1993-7538
From:   MSWEETING
To:     DOCS
Subj:   UoSAT Bull #106 (Edited)

**** UoSAT  Bulletin-106 (Edited) 4th January 1985 ****

UoSAT Spacecraft Control Centre, University of Surrey, England


** GENERAL NEWS **


 A  H A P P Y  and  P R O S P E R O U S   N E W   Y E A R

 to all UoSAT Experimenters - worldwide - from the UoSAT Team.


* UoSAT Opportunities at UoS *

There are opportunities for Research Fellows, Assistants and
Technicians to work on the UoSAT Spacecraft Programme at UoS
supported by grants commencing immediately.  Details of
responsibilities and requisite qualifications will appear in
next Bulletin.

* Bulletin Information Sources *

The generation and editing of the weekly UoSAT Bulletin is a
considerable task for the small team at UoS and therefore we
welcome contributions from all sources providing the content is
of general interest to satellite users/experimenters.  Much
general news is gleaned from ASR and other sources worldwide
via Telemail.  Due to the limited space available for the
UoSAT-1 Bulletin, this information is generally edited and
condensed and it is not always possible to acknowledge the
source in detail.  It is quite a problem to 'shoe-horn' the
Bulletin to fit efficiently into the OBC memory - we regularly
have just ONE byte spare!  So you can see that, at times, every
letter/space etc counts!  We are, however, very grateful for
the information passed to us and we hope that the UoSAT User
Community finds the service and content interesting & useful.


* UoSAT-OSCAR-11 Stabilisation *

Automatic attitude control manoeuvres, carried out by the OBC,
successfully restored gravity-gradient stabilisation to UO-11
after inadvertant destabilision last November - all is OK.

* NOAA-9 *

NOAA-9 was launched at 10:42 gmt on 12 December and is
scheduled to enter service on 1st February 1985.

** UoSAT-Oscar-9 Schedule **

The UoSAT-1 Experiment Schedule will change from 110185 to
reflect majority interests of the user community derived from
an analysis of the many reports and suggestions received during
1984.  It is, of course, not possible to please everyone and
some of the suggestions would necessitate a great deal of
software development which we cannot, at present, support - but
we hope that the new schedule will meet with general approval.
Comments are welcome however!
  The new schedule will be as follows:
    Friday    -  load Bulletin
    Saturday  -  Bulletin/1200 bps telemetry
    Sunday    -  Bulletin/1200 bps telemetry
    Monday    -  DIGITALKER/1200 bps telemetry
    Tuesday   -  Radiation data - next week CCD data
    Wednesday -  Computer check-summed telemetry
    Thursday  -  Whole orbit telemetry survey

This weeks schedule is as follows:
    Friday    -  load Bulletin
    Saturday  -  Bulletin/DIGITALKER/1200 bps telemetry
    Sunday    -  Bulletin/DIGITALKER/1200 bps telemetry
    Monday    -  Bulletin/DIGITALKER/1200 bps telemetry
    Tuesday   -  CCD Camera - next week Radiation data
    Wednesday -  Whole orbit telemetry survey
    Thursday  -  Computer check-summed telemetry


The 21 MHz Beacon will be in use this week.


** UoSAT-Oscar-11 Operations **

  DAY       ORBIT     CHANNELS       RESET TIME
  ***       *****     ********       **********

Monday      4349      2,3            11:34:49
(OBC told to change d/link from TLM to ODATA after 6hrs)

Thursday    4399      1,2,3,52       21:20:21

Friday      4412
(OBC told to change d/link from ODATA to TLM after 9.5hrs)

Monday      4427      2,3            19:24:46
(OBC told to change d/link from TLM to ODATA after 5hrs)

Sunday      4444      1,2,3,52       23:17:49
(OBC told to change d/link from TLM to ODATA after 5hrs)

Monday      4451      2,3            11:05:06

Wednesday   4479      reset Watch-dog
(OBC told to change d/link from ODATA to TLM after 15min)
            4480      1,2,3,52      10:54:50
                      despin to Zspin=4mins
            4481
(OBC told to change d/link from ODATA to TLM after 7.5hrs)

Thursday    4494      despin to Zspin=5mins

Friday      4509      2,3,          10:32:05
                      435 MHz DSR 9600 bps psk test

            4510      435 MHz DSR afsk tests
(OBC told to change d/link from ODATA to TLM after 19hrs)