| |
KP4IG > SAT 11.01.04 20:13l 190 Lines 6643 Bytes #999 (0) @ AMSAT
BID : ANS-011.S2
Read: GUEST
Subj: WEEKLY SATELLITE REPORT PART 2
Path: DB0FHN<DB0RGB<DB0MRW<OK0PKL<OK0PPL<DB0RES<ON0AR<WB0TAX<KP4IG
Sent: 040111/1908Z @:KP4IG.#JD.PR.USA.NA #:28750 WFBB7.00i $:ANS-011.S2
From: KP4IG@KP4IG.#JD.PR.USA.NA
To : SAT@AMSAT
AMSAT NEWS SERVICE BULLETIN 011.S2 FROM AMSAT HQ
SILVER SPRING, MD, January 11,2004, 2003
TO ALL RADIO AMATEURS
BID: $ANS-011.S2
UO-11 OSCAR-11
Catalog number: 14781
Launched: March 1, 1984
Downlink: 145.826 MHz FM (1200-baud AFSK)
Mode-S Beacon: 2401.500 MHz
Status: Semi-operational.
=====
AO-16 PACSAT
Catalog number: 20439
Launch Date: January 22, 1990
Uplink: 145.90 145.92 145.94 145.96 MHz FM
(using 1200-baud Manchester FSK)
Downlink: 437.026 MHz SSB (1200-baud PSK)
Mode-S Beacon: 2401.1428 MHz
Broadcast Callsign: PACSAT-11
BBS: PACSAT-12
Status: Semi-operational, the digipeater command is on and open for
APRS users.
A WOD collection of current graphics along with general information
and telemetry samples can be found at:
http://www.telecable.es/personales/ea1bcu
[ANS thanks Miguel Menendez, EA1BCU, for AO-16 status information]
=====
UO-22 UOSAT
Catalog number: 21575
Launched: July 17, 1991
Uplink: 145.900 FM 9600-baud FSK
Downlink: 435.120 MHz FM
Broadcast Callsign: UOSAT5-11
BBS: UOSAT5-12
Status: Operational.
More information on the satellite is available at the following URL:
http://www.sstl.co.uk/
=====
IO-26 ITAMSAT
Catalog number: 22826
Launch Date: September 26, 1993
Uplink: 145.875 145.900 145.925 145.950 MHz FM (1200-baud)
Downlink: 435.812 MHz SSB
Broadcast Callsign: ITMSAT-11
BBS: ITMSAT-12
Status: No uplinks currently
This from Alberto E. Zagni - I2KBD on November 26,2003:
I can confirm that IO-26 is still in Safe Mode (MBL telemetry).
We have some problems to uplink the full IHT software, probably
due to an unfavourable attitude of the spacecraft.
Until the IHT (high level code) is reloaded, NO digipeat will
be possible, since it is part of the IHT multitasking code.
All the best
Alberto E. Zagni - I2KBD
[ANS thanks for Alberto E. Zagni, I2KBD and Don Woodward, KD4APP this
information]
=====
NO-44 PCSAT
Catalog number: 26931
Launch Date: September 30, 2001
Uplink/downlink: 145.827 MHz 1200 baud AX.25 AFSK via W3ADO-1
Aux/Uplink: 435.250 MHz 9600 baud via PCSAT-2 (off)
APRS Downlink: 144.390 MHz (Region 2)
Status: Semi-Operational.
This in from Bob Bruninga, Wb4APR:
PCsat seems in Excellent health. But it depends on You.
PCsat spends more than half its life in DEEP DISCHARGE cycles from which
it cannot recover until it gets full Sun for a few orbits and can be
commanded (and remember) to keep its spare RX and TX's off. PCsat was
in full Sun for 2 weeks over the holidays and although it is back to
maximum (35%) eclipses on every orbit now, she appears to be in good
health.
Several things are going on:
1) She is now back in MAX (35%) eclipse season! yet running strong.
2) As long as she doesnt reset, she rememebrs to keep spare loads OFF.
3) Northern Hemisphere (USA and Europe) passes are in mid afternoon
4) So USA/Europe ops are occurring with best solar panel towards sun
5) Night passes (USA/EUR) are after 2 AM so low use in dark when risky
6) If she resets, spare RX and TX come on and she dies till May
BUT! What kills us every time is a prime-time EVENING European pass. And
these are coming up in about 2 weeks or so. THere is little difference
between USA and European ops, but there are just more of them that use
PCsat.
So, if we can get EVERYONE everywhere to only operate PCsat between the
hours of Sunrise and Sunset in their area, then PCsat should operate
indefinately. But all it takes is several packets in a row in the dark to
cause a dip in bus voltage and a reset and all is lost till MAY.
PCsat has no computer or controller on board. Just a TNC in a box, so
we cannot schedule her for the 14 day/dark schedules per day...
Two rules will keep us out of trouble:
1) No operation at night after 1 hour past sunset and before sunrise
2) No unattended operations. (dont waste power if you are not there)
This will help avoid a crash due to high loads in the dark and loss of the
bird till May.
PCSat is a 1200-baud APRS digipeater designed for use by stations using
hand-held or mobile transceivers. Downlinks feed a central web site at
http://pcsat.aprs.org
The APRS-equipped PCSat was built by midshipmen from the U.S. Naval Academy
under the guidance of Bob Bruninga, WB4APR.
For more information, visit the PCSat web site at:
http://web.usna.navy.mil/~bruninga/pcsat.html
[ANS thanks Bob Bruninga, WB4APR, for PCSat information][01112004]
=====
NO-45 SAPPHIRE
Catalog number: 26932
Launch Date: September 30, 2001
Downlink: 437.095 MHz 1200 baud AX-25 AFSK
Uplink: 145.945 MHz UI Digipeater
Digi Callsign: KE6QMD
Status: Operational.
This in from Bob Bruninga WB4APR:
Yes, we have officially announced that it will be authorized for UI
digipeating very soon. Experiments are in progress and you can make the
uplink with a 5W HT during an overhead pass. But we have not made the
official announcement quite yet. We do need unattended SatGate volunteers
to bring the 437.1 downlink into the APRS system. The pcsat.aprs.org WEB
page will make the live downlink available just like it did for PCSAT...
We need many more Satgates for Sapphire because its downlink is on UHF and
so it is 9 dB weaker and the doppler is 3 times higher. Thus, any one
ground station will only hear about 10% of all available passes (using an
OMNI antenna), so we need a lot more ground stations to add up to 100%...
Student built Sapphire was launched through the U.S. Naval
Academy Satellite program. Its primary missions are sensor
experiments, a camera, and voice synthesizer. For more information,
visit the Sapphire web site at:
http://students.cec.wustl.edu/~sapphire/sapphire_overview.html
[ANS thanks Bob Bruninga, WB4APR, for Sapphire information][122103]
=====
MO-46 TIUNGSAT-1
Catalog number: 26548
Launched: September 26, 2000
Uplink: 145.850 or 145.925 MHz 9600-baud FSK
Downlink: 437.325 MHz
Broadcast callsign: MYSAT3-11
BBS: MYSAT3-12
Status: Operational at 38k4-baud FSK.
TiungSat-1 is Malaysia's first micro-satellite and in addition to
commercial land and weather imaging payloads offers FM and FSK
Amateur Radio communication.
TiungSat-1, named after the mynah bird of Malaysia, was developed as
a collaborative effort between the Malaysian government and Surrey
Satellite Technology Ltd.
[ANS thanks Chris Jackson, G7UPN/ZL2TPO, for this information]
=====
Read previous mail | Read next mail
| |
