Categories
Ham Satellite news

Mini Space Elevator and Digitalker Deployment From ISS

From ANS-273:

Japan’s seventh HTV mission, Kounotori 7, arrived at the ISS this
week and delivered cubesats planned for deployment on October 6:

+ STARS-Me
+ Rymansat Project RSP-00
+ SPATIUM-I

STARS-Me
——–
This mission consists of two 1U CubeSats connected by a tether which
includes a mini space elevator experiment, the climber, by Shizuoka
University. The climber has a Bluetooth connection that will transmit
its data to a ground station via a STARS-Me downlink. Radio amateurs
can monitor the behavior of the climber in the telemetry data.

Additional experiments include radio wave propagation studies, and
flight dynamics including tethered spacecraft position and rotation.

UHF downlinks will transmit CW, 1k2 AFSK and 9k6 GMSK telemetry.
Mother satellite – 437.245 MHz CW Beacon; 437.405 MHz telemetry
Daughter satellite – 437.255 MHz CW Beacon; 437.425 MHz telemetry

Rymansat Project RSP-00
———————–
The mission of RSP-00, a 1U cubesat, includes:
+ Send messages collected from the public back to Earth via a
digitalker and CW for reception by radio amateurs and school
children.

+ Image capture with on-board camera and transmit image data
with high-speed telemetry on 38k4 π/4QPSK downlink on UHF.

The downlink frequency for the digitalker, CW beacon and AFSK 1k2
packet is 145.890 MHz. The UHF downlink frequency has not been
published.

SPATIUM-I
———
SPATIUM 1 is scientific (non-amateur radio) cubesat to demonstrate
a new technique for ionosphere mapping using a constellation of
CubeSats equipped with Chip Scale Atomic Clock (CSAC) to provide
real-time three-dimensional mapping of ionosphere plasma density
at the altitudes of electron density peak (200 to 400 km above the
Earth).

[ANS thanks the satellite teams for the above information]

Categories
Ham Satellite news

Fox-1Cliff Cubesat Ready for Launch

From ANS-273:

Jerry Buxton, NØJY, AMSAT Vice-President Engineering, delivered
and performed the integration of AMSAT’s Fox-1Cliff CubeSat in
preparation for launch.

Unlike AO-85 and AO-91, AMSAT purchased a commercial launch for
Fox-1Cliff. Please consider a donation to help replenish the coffers
for GOLF and other future AMSAT projects!
https://www.amsat.org/product-category/amsat-general-donations/
https://www.amsat.org/product-category/amsat-membership/
https://www.amsat.org/product-category/amsat-presidents-club-donations/

Uplink: 435.300 MHz FM voice (67.0 Hz CTCSS tone)
1267.300 MHz FM voice (67.0 Hz CTCSS tone)
Downlink: 145.920 MHz FM voice; AFSK digital data up to 9600 bps
Transmit power: 600 mW nominal

Because only one uplink frequency can be active at a time, the use
of the Mode-L uplink will be limited to experimental periods announ-
ced in advance.

Fox-1Cliff carries the flight spare of the AO-85 Vanderbilt University
Low Energy Proton (LEP) radiation experiment, and the standard Fox-1
Penn State University–Erie gyroscope experiment. Virginia Tech pro-
vided a VGA camera which is the same as AO-92 but will provide images
at a higher 640 x 480 resolution. These non-SSTV images will be decoded
in the FoxTelem software.

Fox-1Cliff, unlike the other three Fox-1 FM spacecraft, does not have
an active AFC on the uplinks.

Fox-1Cliff’s Subaudible Telemetry (low-speed telemetry) will be the
same as for AO-85, AO-91, and AO-92. It will be supported by the same
FoxTelem software already released.

As with AO-92, a high-speed mode will be used to support the Virginia
Tech VGA camera experiment. This mode will be active for 40 minutes
by ground command, reverting to standard U/v transponder voice operation.

Fox-1Cliff is named in honor of long-time AMSAT member, contributor,
and benefactor Cliff Buttschardt, K7RR (SK), who passed away in 2016.
Cliff’s contributions to AMSAT and other amateur satellite programs,
including serving as an adviser during the initial development of the
CubeSat specification at California Polytechnic State University,
earned him the Lifetime Achievement Award from Project OSCAR in 2006.

[ANS thanks Jerry Buxton, NØJY, AMSAT Vice-President Engineering for
the above information]

Categories
Telemetry

AO-73 Spinrate 2018-09-25

During this pass over Stockholm you can clearly see the Spinrate of AO-73.

Under denna passage går det tydligt att se hur AO-73 snurrar i rymden, det som kallas Spinrate. De två graferna visar temperaturen på Y och X-solpanelerna och hur den varierar. Sista bilden visas skillnaden i signalstyrkan då satelliten snurrar.

Jag kan varmt rekommendera AO-73 som en första satellit att lyssna på då den har en bra signalstyrka på 145.935 MHz USB.

Categories
Telemetry

AO-91 telemetry over Stockholm 2018-09-22

#amsat And here is AO-91 telemetry over Stockholm

Categories
Telemetry

AO-92 telemetry over Stockholm 2018-09-22

Very good pass for telemetry:

Categories
Ham Satellite news

AO73/FUNcube-1 is entering a further period of full sunlight

Nu är det åter igen dags för AO-73 att vara solbelyst under en lång period. Detta gör det extra viktigt att ta emot telemetri och skicka upp till Funcube “warehouse”. Läs mer på Funcubes hemsida.

AO73/FUNcube-1 is entering a further period of full sunlight