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The role of freely available and open-source software in our daily - - PowerPoint PPT Presentation

Aug 22, 2023 19 likes •444 views

The role of freely available and open-source software in our daily space operations Sacha Tholl Hannah Walther Introduction Introduction About my first access to space FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen |

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SLIDE 1

The role of freely available and

  • pen-source software in our

daily space operations

Sacha Tholl Hannah Walther

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SLIDE 2

Introduction Introduction

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SLIDE 3

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

About my first access to space

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SLIDE 4

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Sachas Part The students of the FH Aachen Space Operations Facility amateur-radio call-sign of the station: DL0FHA

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SLIDE 5

Equipment of the Space Operations Facility

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Antennas of teleport 1 and 3

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SLIDE 7

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Antennas of teleport 2

Teleport Eupener Straße

  • 70 cm circular polarized Yagi: 6.8dBi
  • LogPer feed (0.8-7GHz)
  • 3m parabolic dish
  • RTL-SDR
  • Rhode & Schwarz EM100 digital (SDR)
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SLIDE 8

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Do it yourself philosophy: Maintenance!!

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SLIDE 9

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

  • RTLSDR; HackRF
  • Rohde & Schwarz EM100 (SDR receiver)
  • ICOM 820
  • ICOM 910h
  • New ICOM 9700 just arrived last week
  • HLV-770-LPD-LAN (430-440 MHz) RF Power Amplifier

(low drive) will arrive soon 

Receiver / Transceiver

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Two exampes what can be done with our EM100 // 3m Dish

Moon reflection ON0EME (Belgium) - Moon - FHASOF over a total distance of 802.000km (15.10.2018). Peak at almost 1296 MHz). Elevation:12.5°

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SLIDE 11

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Mult-mission control room

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SLIDE 12

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

FHASOF technical facts

d d

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

FHASOF technical facts

Workforce Structure

  • 21 active student members
  • 18 Batchelor students
  • 2 master
  • 6 active working groups:
  • Management
  • Operators
  • Flight Dynamics
  • Documentation
  • Maintenance
  • PR & Open-reach
  • Project direction
  • Prof. Dr.-Ing. Bernd Dachwald
  • Lead & flight director

Dipl.-Ing. Sacha Tholl

  • Supervising engineer

Dipl.-Ing. Engelbert Plescher

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SLIDE 14

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Mission control

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SLIDE 15

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Training & certification

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SLIDE 16

FHASOF FHASOF groundstation groundstation 3 teleports setup 3 teleports setup

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

VPN Tunnel & TCP/IP Input
  • Sat. name
Az, El, Freq. PUTTY SSH PORT fwd

SGP4 Tracking App Orbitron MyDDE Wrapper Dynamic Data Exchange DDE/TCP to TCP/IP Server TELEPORT 1 HAMLIB HAL Rigctld & Rotctld deamon Mobile Teleport

  • Ext. Teleport

Etc... SGP4 Tracking App GPREDICT, JSTRACKER TELEPORT 2 TCP2DDE Client TELEPORT 3 TCP2DDE Client ROTOR CONTROL RIG CAT BOX usb2RS USB snd card Orbitron DDE ROTOR CONTROL Wrapper Orbitron DDE HDSDR CONTROL Wrapper Orbitron DDE HDSDR CONTROL Wrapper

PUTTY SSH PORT fwd PUTTY SSH PORT fwd PUTTY SSH PORT fwd

ROTOR Conventional Transceiver HDSDR New!!! GNU RADIO ROTOR Controller HDSDR

DDE DDE Analog input RS232 Audio in Audio out Tcp/ip Analog input

ROTOR Rhode&Schwartz EM100 SDR

Brief schematic of the ground-station

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SLIDE 18

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Routing mechanisms – one example

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SLIDE 19

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Controlling the radios and rotors via Hamlib

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SLIDE 20

Demodulation and Demodulation and decoding decoding

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Dedicated Satellite Decoders like Funcube Dashboard GNU Radio, etc.....

Analogue audio stream Input Full sampled IQ-Stream Digital audio Stream Input Digital audio
  • utput
KISS Tcp port 8100 AGW Tcp port 8000 AGW Tcp port 8000 Serial Data Input COM6

Conventional Receiver SDR Receiver IQ-Waves SDR Software HDSDR, SDR# Virtual soundcard VB-Cable UZ7HO AX.25 Softmodem Soundmodem.exe AGW Packet Engine MixW FL-Digi AGW Online KISS To store HK-data As HEX-Files TLM -FORWARDER VSP Virtual Serial Port MXL GS Client MXL GS Server

Digital Audio
  • utput
Serial Data Input COM5

GNU Radio

GNU Radio is being implemented Still experimental for us

Demodulation and decoding

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

From telemetry reception to decoding some examples

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SLIDE 23

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

GNU-Radio // GR-Satellites and OPS-SAT GNU-Radio decoder

Taken at max elevation of about 40°

x x

_ __

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Typical software setup with ICOM910h

  • r any other analogue Receiver
  • Soundmodem (UZ7HO)
  • AGW-Online Kiss (DK3WN)
  • TLM Forwarder (DK3WN)
  • Telemetry interpretation

application for OPSSAT

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SLIDE 25

Uplinking Uplinking

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Analog Audio Digital audio & PPT via USB Digital audio
  • utput
AGW Tcp port 8000

Conventional Transmitter CAT- Box & USB Soundcard Virtual soundcard VB-Cable UZ7HO AX.25 Softmodem Soundmodem.exe Hardware TNC Miniterm Terminal App Mission Command Server(s) Mission Comand Client

Digital Audio input

Encoding GCS Core FL-Digi

PTT via RS232

Uplinking: modulation and encoding mechanisms

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Teleport A

Uplinking example using Soundmodem (UZ7HO) via ICOM 910h

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Some tracking Some tracking examples examples

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Weather satellites decoding using Wx2IMG

Taken at max elevation of about 40°

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

SSTV via ARISS / RS0ISS using RX-SSTV

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SLIDE 31

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Tracking the Soyuz

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Something special Something special with DSLWP with DSLWP-

  • B
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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Signals from the moon DSLWP-B using the WSJT application

JT4G Turbo coded telemetry beacons

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Signals from DSLWP-B using WebSDR

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An application for tracking An application for tracking non non-earth orbiting and deep space earth orbiting and deep space celestial objects celestial objects

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

GMAT for flight dynamics purpose and tracking non earth-orbiting celestial objects

I got the idea when I saw this GMAT sheet from Daniel Estevez. I implemented David Vallado’s RAZEL algorithm as a native GMAT function to get a file that would provide the exact pointing and doppler correction of DSLWP-B or any other celestial object. This propagator will be soon posted under GitHub. An announcement will be made on twitter.

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FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Testing the application with earth orbiting satellites

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SLIDE 38

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Testing the application with earth orbiting satellites

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SLIDE 39

Multi Multi-

  • tracking satellite

tracking satellite propagator propagator

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SLIDE 40

FH Aachen Space Operations Facility Hohenstaufenallee 6 | 52064 Aachen | Germany | DL0FHA +49 241 600 952 830 Dipl.-Ing. Sacha Tholl Hannah Walther

Head of Ground Segment & Operations Documentation & Management

tholl@fh-aachen.de

hannah.walther@alumni.fh-aachen.de

Special tool for semi-automatic multi tracking (In-house development)

We not only perform single-track sessions, but also so-called multi-track sessions, where we try to listen to as many satellites as possible. This application is a propagator that evaluates in real-time which satellite is at this very moment, the best one to track. It analyses if the satellite is still moving towards the station

  • r if it is already flying away.

It considers the actual pointing position of the antennas to evaluate the chances of a successful interception after the injection into

  • rbit of a cluster launch (lots of satellites very

close to each other, like a swarm). It also evaluates the downlink quality (if the satellite radio specs are known) and makes then suggestions on which satellite would be the best satellite to track. If you acknowledge, it points the antenna to that satellite, taking into consideration the time the antenna takes to move toward the satellite, to intercept the satellite on the fly to maximize the reception time. This application is still under construction, a first Alfa release will be online on Github in April this year.

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Notice: We are always eager to test new hard equipment and software

  • applications. So if you have any space- operations related
  • pen-source applications that need to be (beta)-tested under

real-world conditions, such as propagators, sdr-radio applications, sdr-hardware, ground-station applications, encoders/decoders, just send us an email: Sacha Tholl: tholl@fh-aachen.de

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We want to particularly thank all the developers of

  • pen-source software. Without your impressive work,
  • ur passion would be far more difficult to achieve!

Contact

Email: fhasof@fh-aachen.de Sacha Tholl: tholl@fh-aachen.de Hannah Walther: hannah.walther@fh-aachen.de Twitter: https://twitter.com/fhasof Facebook: www.facebook.com/fhasof Instagram: https://www.instagram.com/fhasof Youtube: https://www.youtube.com/channel/UCVVyDe6XZ8opbCRaNJ03Faw

Thank you for having listened