ZACube-1

Stellenbosch University ZACube-1

ZACUBE-1 is a student-developed CubeSat of CPUT (Cape Peninsula University of Technology), Cape Town, South Africa. Development of ZACUBE-1 commenced in early 2011. Its main payload is a high frequency (HF) beacon transmitter that will be used to help characterize the Earth’s ionosphere and to calibrate SANSA's (South African National Space Agency) auroral radar installation at the SANAE¿IV base in Antarctica. ZACUBE-1’s ADCS was developed in a collaboration between F’SATI and ESL (Electronic System's Laboratory) at Stellenbosch University, Stellenbosch, South Africa.


NASA-Catalog: 39417

Downlink

437.345 MHz FM 1k2 AFSK AX.25

Status

ACTIVE

Orbital Parameter

NORAD                   39417
COSPAR designator       2013-066-B  
Inclination             97.770
RA of A. Node           305.324
Eccentricity            0.0062657
Argument of Perigee     20.739
Revs per day            14.78270765
Period                  1h 37m 24s (97.40 min)
Semi-major axis         7 013 km
Perigee x Apogee        591 x 679 km
BStar (drag term)       0.000130700 1/ER
Mean anomaly            339.633


January 22, 2014

What better way to celebrate nearly two months on orbit than with the first image captured by TshepisoSat that shows the earth from space. What makes the image even more special is that, as mentioned before, the satellite is not stabilised in three-axes. Images are captured without any control of where the camera is pointing and so far images have either been of empty space or the sun.
The satellite was commanded from the ground station to switch on its camera and capture the image. The image was then transferred to the on-board storage and the camera turned off. The image was then downloaded from the satellite to the ground station.

zacube_newpic
© 2014 French South African Institute of Technology

Telemetry

2013-11-21 15:10:34.860 UTC: [47 Bytes KISS Frame (without CRC)]
from 123456 to 012345: 
   1 > DC 0C 16 7A 61 63 75 62 65 30 31 2E 00 00 2A 96 2C 0B 13 2C 
  21 > 06 95 2C 0C 2E DC 

from 123456 to 012345: 
   1 > DC 0C 16 7A 61 63 75 62 65 30 31 2E 00 00 2A A9 2C 0B 12 2C 
  21 > 06 95 2C 0C 2E DC 

from 123456 to 012345: 
   1 > DC 0C 16 7A 61 63 75 62 65 30 31 2E 00 00 2A BC 2C 0B 0C 2C 
  21 > 06 95 2C 0C 2E DC 
21.11.2013, 1510 UTC - first telemetry (DK3WN)
zacube_zacube_dk3wn_22082014_1900

Links und weitere Informationen

https://directory.eoportal.org/web/eoportal/satellite-missions/v-w-x-y-z/zacube-1

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