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Basic constants

  • Solar constant: 1.362 kW/m² @1AU
  • 1AU = 1.49597871E8 km
  • Moon-Earth Distance (LD): 3.84400E5 km

Calculator

  1. Target asteroid #3
    • character
      • orbit
      • physical property
      • composition
    • Observatory
      • optical
        • images
        • color wheel
        • spectrum
      • radar
    • Probe constellation/Vehicle
      • Density in space
      • communication link
      • mass/propulsion
        • power supply
        • load
          • attitude
          • instrument
        • propulsion
          • specific impulse
          • Total impulse
  2. solar furnace #5
    • stationary
    • on orbit
    • calc
      • size
      • effective area
        • full power
      • focal distance
      • focus spot
        • focus spot size
        • power desity
      • mechanic
        • mass
        • construction speed
          • accuracy in need
        • on orbit
          • weight
        • stationary
          • track speed
  3. smelting in field #6
    • power desity
    • reflect ratio
    • Molten pool productivity
      • pour out rate
  4. zone melting #6
    • size of raw material
    • power desity
    • speed
    • total time
    • productivity
  5. Magnetic work shield #4
    • Magnetic tower
    • Magnetic torquer of work station
  6. Electromagnetic momentum management system
    • fix position for furnace
    • positioning for robots
    • Electromagnetic launch system for work station
  7. Exponential growth
    • productivity per set
    • productivity of solar furnace
    • robots duty #7
    • further construction, cabin etc
    • one shot for whole
    • orbital transfer for C-type
  8. Orgnization
    • Time frame #20
    • Initial base package (IBP) and supplement #13
    • Resource in need

Solar Furnace Calculator:

Distance AU Solar Power Density W/m²
Equivalent size/Actual diameter m Effective area m sq
Efficency % Full Power kW
Focus Distance m Focus Spot Size m
Focus Quality % Nominal Focus Spot Power Density kW/m sq
Asteroid related
MPC designation Surface Gravity g/kg
Perihelion AU Aphelion AU
PeriFSPD kW/m sq ApheFSPD kW/m sq
Orbital period yr Rotation period h
Spectral type Dimensions km
Mass Ton Weight kg-force

Smelting in the field

Distance AU Solar Power Density W/m²
Equivalent size/Actual diameter m Effective area m sq

Hertz–Knudsen equation for evaporating liquids

α 0≤α≤1 The gas pressure Pa
Molar mass kg mol−1 Temperature K

<script language="javascript"> var eDist = 1 function distance_unit() { const AU = 1.49597871E8 const LD = 3.84400E5 eDist=document.getElementById("evaluDistance").value // *document.getElementById("distanUnit").value // var cell = document.createElement("td"); var cellText = document.createTextNode("cell in row "); document.getElementById("distUnits").setChild(cellText); furnace_calc() } function furnace_calc() { const nominalSPD = 1362 eDist=document.getElementById("evaluDistance").value var SPD = nominalSPD/Math.pow(eDist, 2) // var tr=document.getElementById("twText2").value // var tunit=document.getElementById("twSelect5").value; // if (tunit=="F"){ // tr=tr*5/9; // } // var tk=document.getElementById("twText3").value*document.getElementById("twSelect2").value;//cm // var ta=document.getElementById("twText4").value // tunit=document.getElementById("twSelect6").value; // if (tunit=="F"){ // ta=(ta-32)*5/9; // } // var len=document.getElementById("twText5").value/document.getElementById("twSelect4").value;//cm // //calcs // var rho=1.7e-6 //ohm-cm //output document.getElementById("solarPowerDensity").value=SPD.toPrecision(3) // document.getElementById("twText7").value=ri.toPrecision(3) // document.getElementById("twText8").value=vi.toPrecision(3) // document.getElementById("twText9").value=pi.toPrecision(3) // document.getElementById("twText10").value=we.toPrecision(3) // document.getElementById("twText11").value=re.toPrecision(3) // document.getElementById("twText12").value=ve.toPrecision(3) // document.getElementById("twText13").value=pe.toPrecision(3) } function A_external(current,rise) { var k = 0.048 var b = 0.44 var c = 0.725 return Math.pow((current/(k*Math.pow(rise,b))),1/c) } function A_internal(current,rise) { var k = 0.024 var b = 0.44 var c = 0.725 return Math.pow((current/(k*Math.pow(rise,b))),1/c) } </script>

Satellite Link Budget Calculator

Complete all white boxes and then click any calculate button to obtain results in the green boxes.

Uplink frequency GHz
Uplink antenna diameter m
Uplink antenna aperture efficiency e.g. 0.65
Uplink antenna transmit gain dBi
Uplink antenna, power at the feed W
Uplink EIRP dBW
Range (35778 - 41679) km
Uplink path loss dB
Uplink pfd at satellite dBW/m^2
Bandwidth Hz
Satellite uplink G/T dB/K
Uplink C/N dB

Downlink frequency GHz
Downlink receive antenna diameter m
Downlink receive antenna aperture efficiency e.g. 0.65
Downlink system noise temperature (antenna+LNA) K
Downlink receive antenna gain dBi
Downlink receive antenna G/T dB/K
Downlink satellite EIRP dBW
Downlink path loss dB
Downlink C/N dB

Uplink C/interference dB
Uplink C/N dB
Satellite C/intermod dB
Downlink C/N dB
Downlink C/interference dB
Total link C/N dB

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