karn@mouton.UUCP (11/03/84)
**** UoSAT Bulletin-99 (Edited) 2nd November 1984 ****
UoSAT Spacecraft Control Centre, University of Surrey
** GENERAL NEWS **
* UoSAT-OSCAR-11 QSL *
The first printing of these QSL cards was rejected but
relacements are promised for next week! Patience will be
rewarded!
* UoSAT-OSCAR-9 Competition *
We should like to remind schools etc. that the Department of
Electronic Engineering of the University of Surrey has offered
a prize of 100 pounds, or equivalent, to the student group it
considers to have been the most successfully active utilising
the telemetry and experiments from the UO-9 spacecraft. The
competition was announced in the UoSAT School's Booklet, 'UoSAT
- A Guide to its Capabilities, Operation & Usage', published by
UoS in 1982 and is open to all student groups from educational
establishments world-wide. Submissions for the competition,
which is intended to encourage the educational usage of the
spacecraft, should be in the form of a detailed report showing
clearly the experimental programme development, receiving &
display equipment, computer software and the results of the
experiments carried out. Particular notice will be taken of
examples showing the use of the spacecraft in demonstrating
space technolgy in the class-room. Photographs, where
appropriate should be included, as well as examples of
graphical plots and computer displays of data. The closing
date for the competition is 31st December 1984.
* SECOND ANNUAL AMATEUR RADIO SATELLITE SYMPOSIUM *
AND 1984 AMSAT ANNUAL MEMBERSHIP MEETING
G3YJO and G8NOB (Martin & Neville) will be attending the
Meeting and it is likely that an additional item on UoSAT will
be included in the Programme.
* Meteorological Spacecraft News **
* NOAA-9 *
The launch of NOAA-F (9) is now set for the 8th of November.
** UoSAT-Oscar-9 Schedule **
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 **
* Digital Communications Experiment *
NK6K and LSK have spent much time this week preparing for
activation of the DCEby carrying out digital communication
calibration tests using the 435 MHz beacon in 1200 bps afsk.
The UO-11 DCE will be a major topic of discussion (2days!)
following the AMSAT Meeting in LA next week with G3YJO & G8NOB.
* The 435 MHz downlink is functioning well with an output rf
power of 750mW to 1 watt, consuming around 225 mA from the +14v
unregulated bus. Very strong signals are received from this
beacon, 1200 bps afsk telemetry has been copied at UoS without
difficulty using an IC471, no preamp and a linear polarised
yagi.
* Experiments continue with the 9600 bps nrzi psk data on the
435 MHz downlink in preparation for DCE, CCD & Particle/Wave
Experiments.
* Particle/Wave Experiments - UO-11 and the AMPTE spacecraft
are in conjunction for two weeks allowing the simultaneous
measurement of P/W interactions with UO-11 and UKS. A number
of regular P/wave surveys over the North polar regions have
been carried out using the OBC and the DSR this week. Most of
the data was dumped using the 145 MHz downlink whilst work
continues on the 435 MHz psk downlink system. These
conjunctions occur only once every six months so we must make
the most of it!
A daily account of UO-11 operations follows:
DAY ORBIT CHANNELS RESET TIME
*** ***** ******** **********
Friday 3488 1,2,3,52 13:17:25
3491 435 MHz DCE 1200 bps afsk test
3492 435 MHz DCE 1200 bps asfk test
OBC switched back to 145 MHz after 1hr25m
Saturday 3502 45,52 12:15:50
435 MHz DCE 1200 bps afsk test
OBC switched back to 145 MHz after 6hrs
Sunday 3516 P/wave survey 11:18:45
3517 DSR P/wave dump
OBC switched back to Tlm after 9hrs
Monday 3530 Spacecraft despin to 3m50s
3531 Spacecraft despin to 5m
P/wave survey 11:56:40
435 MHz DCE 1200 bps afsk test
OBC switched back to Tlm after 9hrs
3538 45,52 23:04:45
435 MHz DCE 1200 bps afsk test
OBC switched back to 145 MHz after 7hrs
Tuesday 3544 P\wave survey 09:23:15
3545 1,2,3,52 10:51:02
DSR P/wave dump
3551 Tlm
435 MHz DCE 1200 bps afsk test
OBC switched back to 145 MHz after 11hrs
Wednesday 3558 ODATA dump
3559 435 MHz 9600 bps psk tests
3560 ODATA dump
3561 435 MHz 9600 bps psk tests
1,2,3,52 13:11:00
3565 45,52 19:26:40
435 MHz DCE 1200 bps afsk test
OBC switched back to 145 MHz after 12hrs
Thursday 3573 P\wave survey 08:56:35up
ODATA dump
3574 P/wave data dump on 435 MHz at 9600 bps
3575 same as 3574
145 MHz Tlm
3579 45,52 18:34:20
435 MHz DCE 1200 bps afsk test
OBC switched back to 145 MHz after 12hrs
Friday 3487 DSR 9600 bps nrzi psk tests
** Thanks for Reports & Questionnaire Returns **
W7AVE, V3CE, HB9RKR, ZS1BI, DL7OU, H.J.Meerza, G4BBH, JA2WO,
HB9RJV, VK2AVH, HB9RKR,
This week: ZL2AHK, VE3CIE,