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May 08 USNA Satellite Lab/Ground Station  Astronautics Overview  Satellite and communications Labs  Satellite Student Design Projects  Ground Station.

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Presentation on theme: "May 08 USNA Satellite Lab/Ground Station  Astronautics Overview  Satellite and communications Labs  Satellite Student Design Projects  Ground Station."— Presentation transcript:

1 May 08 USNA Satellite Lab/Ground Station  Astronautics Overview  Satellite and communications Labs  Satellite Student Design Projects  Ground Station Ops  Extracurricular Bob Bruninga, Ground Station Engineer May 2008 RAFT & MARScom

2 May 08 Astraonautics Track Overview 8 Faculty in Astronautics (out of 16 total in Aerospace)  3 Full time Civilian Astronautics Faculty (PhD)  2 Full time Military (PhD) .5 Half-time with NASA Faculty (PhD) .5 Half-time Aero (structures) (PhD)  2 Funded Chairs (PhD)  1 Engineer (Labs and Satellite Projects)(MS EE)  Students  Astro(30%) (out of in Aerospace Major)

3 May 08 Astronautics Budget Internal O&M,N$150K Navy Network Warfare$150K (Space Chair, Tech, Support) External (Gift or Endowment) Heinline Chair$130K (endowed chair) Roger’s Chair$140K (endowed chair) Aerospace Corp$ 50K (ParkinsonSat) Aero Gift Fund$ 5K (Various) Total Budget about $625K

4 May 08 Satellite Labs  Missions, Orbits, STK Projects  Communications, Links, Antennas  Transmitters, Receivers, Losses  EPS, Electrical Power System  Signals and Telemetry  Thermal Lab  ADCS Indoor Outdoor Noise temperature

5 May 08 Antenna Lab Geo Arc and 9 operating positions VHF dipole UHF Satcom C/Ku band TVRO

6 May 08 Communications, Receivers, Losses Gain, losses Amps and LNA’s Cable losses Geo-Arc Beamwidth Spectrum Analyzer Downconverters Demod, Decoding UFO

7 May 08 Communications, Links, Gain Wavelength Antenna Size Types Gain, Beamwidth Link Budget SNR SWR Matching

8 May 08 Antenna Lab for Seniors (1 st Class) RF LABsat model on rotor Rotator and S/A to plot pattern Dipole 1 Antenna Phasing experiment

9 May 08 Antenna Link Budget and Gain  Uses small 2.4 GHz camera/transmitters  First observe dipole link (1000’)  Place dipole at dish focus and measure gain  Swing dish to see Beamwidth

10 May 08 Antenna Matching and Plots Using PI network to match spacecraft antenna for best SWR Using GPS signals to plot antenna pattern of GPS

11 May 08 Telemetry Lab Sensors Circuits Conditioning Engineering conversion Decoding Protocols

12 May 08 EPS Lab Solar Panels I-V curves Distribution Regulation Shadowing RTG demo EPS LABsat Design Lab Begin using LABsats

13 May 08 Thermal Lab Conduction Radiation Absorbtivity Emissivity Insulation

14 May 08 Attitude Control Labs (LABsats) Can demo all but gravity gradient Magnetometer Sun Sensor Start Tracker Match- head thruster

15 US Naval Academy LABsats Labsats mostly integrated into labs by 2004

16 May 08 Basic USNA’sat Ham Radio TNC Terminal Node Controller $180

17 May 08 Transmitter Tests Power out Efficiency Temperature Spectrum and EMI

18 May 08 Receiver Tests

19 May 08 Demodulation - FSK  All Seven Student LABsats on the air  Sharing a single TDMA channel  Using FSK for demodulation

20 May 08 Demodulation - PSK LABsat configured as HF to UHF linear transponder Indoor LABsat RX PSK-31 Waterfall Spectrum display on Student’s workstation

21 May 08 Command-Control-Telemetry Ground Stations Laptop Ground Stations for PCSAT’s, ANDE, RAFT, etc

22 May 08 Past Satellite Design Projects  Satellite and communications Labs  Satellite Design Projects  Past missions: RAFT PCSAT MIDSTAR

23 May 08 Satellite Design Projects  NATSweb– 1 st Sea-Launch (1997 scrubbed in last week!)  PCsat– Launched Athena 30 Sept 2001  Sapphire-- Launched Athena 30 Sept 2001  PCSAT2– STS Jul 06 return to flight  ARISS– Launched on Progress Aug 2003  ANDE– STS Dec 06  RAFT1– STS Dec 06  MARScom– STS Dec 06  MIDSTAR- STP-1 9 Mar 07  ParkinsonSAT – Commenced Fall 2006

24 May 08 USNA Constellation

25 May 08 Future Satellite Design Projects  Satellite and communications Labs  Satellite Design Projects PCSAT MIDSTAR ParkinsonSAT Micro Dosimeter (MIDN) DRAGON Particle Detector

26 May 08 Future Psat Auxilliary Payload 39 cu.in 1W average power 5W peak power

27 May 08 Low-Cost Satellite Design Projects  NATSweb– $ 2k 1 st Sea-Launch (1997 scrubbed in last week!)  PCsat– $30k Launched Athena 30 Sept 2001  Sapphire- $3k? Launched Athena 30 Sept 2001  PCSAT2– $35k STS Jul 06 return to flight  ARISS– $ 2k Launched on Progress Aug 2003  ANDE– $35kLaunched STS Dec 06  RAFT1– $15KLaunched STS Dec 06  MARScom– $15KLaunched STS Dec 06  MIDSTAR- $1.8M Launched Atlas-V Mar 07  ParkinsonSAT – $50kCommenced Fall 2006

28 May 08 Satellite Design Involvement PCsat16 projects Goodhiew 97, Morgan 98, Lundberg, Scrabeck, Gomez, Melanson, Kollar, Mattera, Ortiz 99 - Burroughs 99, Schwenzer, Nolan, Lawrence, Boutros 2000, Sullivan, Gutweiler 2001, Machinest: Mike Spencer PCSAT28 projects Otero, Silver, Jones, Kolwicz, Evans, and Henry(03) Operations: Paquette and Robeson(05) ANDE8 projects Aaron, Villalbi, and Weisenberg, Kelley, Keller, Harris(03), Patterson, & Ensign Sillman(02) RAFT116 projects Robeson, Paquette (06) - Orloff, Kinzbrunner, and Rose(05) - Baker, Tuttle, Colvin (04) Abbott, Atwater, Brandt, Hansen, McLean(03). And 3 in (02) Midstar/ICsat 56 students over 8 years MIDN/Dragon, etc20 Students over 4 years ParkinsonSAT 21 projects Papso, Edirisinghe, Icard, Meyer, Phillips(08), - Dendinger, Lewis, Lwin, Campbell, Sydney, Okun, Londono, Smythe, Lindsay, Mayer 07 -Koeppel, Lovick, Paquette, Piggrem, Robeson, Vandegriff (06) OPERATIONS: EA-204 Intro to Astro (100 students / year). EA-467 Labs (30/yr)

29 May 08 PCsat, launched 30 Sept 2001 Team: 6 Students/yr, 2 Profs, 1 Engineer 2200 Amateur Satellite Users Still semi-operational

30 May 08 Current Status Full recovery after each full-sun period. Negative power budget due to fail-safe default RX/TX

31 May 08 PCsat Comms Mission Data Relay (Situational Awareness) for Mobiles and Handheld radios. GPS tracking and LIVE to WEB Blue Force Tracking

32 May 08 Typical PCsat User Station (Blue Force Tracking)

33 May 08 Typical Pass Display

34 May 08 Internet Linked Ground Stns pcsat.aprs.org

35 May 08 Internet Linked Ground Stns pcsat.aprs.org

36 May 08 Internet Linked Data Displays pcsat.aprs.org

37 May 08 PCsat “Student Operations”

38 May 08 Other Experiments through PCsat  Antarctic WX station  F-16 downed flyer demo (Rome Air Development Center)  Arctic Tracking (trucks up frozen rivers >70º Latitude)  ISS Joint Ops (2 weeks of constellation flying)  USNA Marconi Re-enactment ( St Johns Newfoundland)  2200 other users worldwide

39 May 08 Air & Space Museum Donated April 2004 to Smithsonian For Display At Dulles

40 May 08  Very short development time  Simplicity and off the shelf  Educational Project  Communications service to Users  Telemetry for Space Environment  Configuration controlled on the ground Bob Bruninga US Naval Academy Satellite Lab Amateur Satellite Service partnering with DOD and ARISS PCSAT2, DOD synergy in the Amateur Satellite Service

41 May Solar Cell Samples Latest triple junction technology PCSAT-2 downloaded 3 Mbytes/day via network of Volunteer Ground Stations (We paid our rent) NASA/Glen Solar Experiment

42 May 08 MISSE5 – PCSat2 – 26 July Midshipmen involved in early integration and testing of PCSat2 electronics. Two views of the initial deployment of MISSE/PCSat by astronaut Soichi Noguchi. It was installed 8 days after the launch of STS-114 (26 July 05)

43 May 08 Satellite Transponders

44 May 08 PCSAT2 Location Returned August 2006 after a year’s exposure

45 May 08 Global Situational Awareness Network

46 May 08 Handheld Mobile Typical User Station Encourage Schools and Students to get involved in Space Tiny!

47 May 08 ANDE Satellite Atmospheric Drag USNA Comms Telemetry - Temperature - Attitude - Laser Control Joint Project with NRL Primary Lithium Batteries

48 May 08 ANDE, CAPE, ICU

49 May 08 ANDE Deployment 21 Dec 2006 Initially FCAL separated from the container, but not ANDE Radar returns later indicated ANDE separation

50 May 08 ANDE Satellite

51 May 08 ANDE Satellite

52 May 08 ANDE Satellite Temp Data throughout (paid our rent) Deployed 21 Dec 2006

53 May 08 RAFT Project (two Satellites) RAFT-1 (~PCsat) MARScom NSSS Radar Fence MHz

54 May 08 Stanford Cubesat Projects 50 in construction! AIAA/USU Conference 30% of all papers were related to CUBESATS

55 May 08 Simple LABsat TLM/CMD System

56 May 08 RAFT/MARScom Deployment (SSPL5510)  Stuff

57 May 08 NAVSPASUR Radar Fence Daily Bistatic Radar Demo with Moon

58 May 08 NAVSPASUR Radar Fence Doppler from Radar Fence detected on RAFT

59 May 08 Raft Radar Transponder 4 mW RAFT oscillator detected by PE1ITR!

60 May 08 RAFT Deployment

61 May 08 RAFT Project (MARScom) UHF AM up HF SSB downlink YP Radios

62 May 08 MIDSTAR Mission 9 March 2007 Atlas-V EELV ESPA Ring – STP-1 ICsat & CFTP Midn, Mems, Ncnu S-band No attitude control

63 May 08 ParkinsonSAT  Named in Honor of Dr. Parkinson ($50k grant)  Link budget using Omni antennas on satellite and buoys  Sun pointing ACDS system  EPS system with a solar panel & battery configuration  Positive standby power budget in any attitude  Thermal Regulation of Components

64 May 08 Sun Pointing Attitude Control System Pointing requirements are relaxed +/- 40 deg High precision attitude control not required Paquette ODTML off (4.5 W) ODTML on (18W) Psat USNA-0601 SAFE mode

65 May 08  Display consists of three view frames  First Frame Rickover Lobby reference frame Displays the simulated sun (Lamp) angle “LL” in reference to the Lobby frame Displays the spacecraft solar bus voltage and charging current.  Second Frame Sun frame Displays Spacecraft angle to the Sun angle “SS” Relative sun current measurements for X, Y and Z Used to determine sun angle A second column shows these values after being normalized to +/- 10 degrees Latest version also displays CW and CCW rotation rate arrow showing direction and magnitude of the spin rate.  Third Frame SolSat Frame Displays reported Earth’s Magnetic field vector relative to the Spacecraft, angle “SM” Displays measured components of the spacecraft’s magnetometer in X, Y and Z components Used to determine the Earth’s magnetic Field vector.

66 May 08 ADCS (P-sat Demo) Actual Torques and Earth’s Magnetic Field

67 May 08 ADCS Simulation Results  After approximately 1.4 orbits, the ADCS system gains control of the spacecraft Tip-off rates removed for the X and Y axes down to approximately 0.2 degrees per second Tip-off rate is reduced to 2 degrees per second for the Z axis to establish stability  Based on an initial tip-off rate of 5 degrees per second

68 May 08 USNA Satellite Lab/Ground Station  Satellite and communications Labs  Satellite Design Projects  Ground Station Ops  Extracurricular Bob Bruninga, Ground Station Engineer PCSAT-1, ANDE/RAFT 12 Meter (AO-40) C/Ku TVRO (NASA TV) Teleconferencing Summer Seminars, Tours AMSAT Tracking

69 May 08 PCSAT1/2 ANDE/RAFT Telemetry & Commanding

70 May 08 USNA Satellite Lab/Ground Station RS0ISS>PP0PP0,SGATE,qAo: Go Army beat Navy! PCSAT-1>APRS,SGATE,qAo: Go Navy Beat Army! PCSAT2>APRS,SGATE,qAo: Go Navy Beat Army!

71 May 08 USNA Satellite Lab/Ground Station 12 meter NASA dish (1989) C and Ku TVRO S band (100W) Needs new controller Needs new RF Needs network upgrades Needs all RF cable refurb Needs Mission

72 May 08 USNA Satellite Lab/Ground Station  Satellite and communications Labs  Ground Station Ops  Satellite Design Projects  Extracurricular Bob Bruninga, Ground Station Engineer

73 May 08 Other Activities Space Day (Air&Space) AMSAT (North America) Marconi 100 th (St Johns) BSA RadioBadge School Mentoring Balloon Tracking

74 May 08 AMSAT Operations AO-40 Rescue - PCSAT2

75 May 08 USNA Extracurricular Activities Annual Moonbounce Event Football & Boat GPS Tracking, Comms, Imagry, Data, Internet Imagry W3ADO, oldest USNA ECA (1928) Sea Trials

76 May 08  The comm channels can potentially draw from over 30,000 experimenters for easy assessment of loading and scaling issues.  Not only the sensors and users exist, but the global Internet collection and distribution system also exists from PCSAT1 & 2, ANDE and RAFT.  Our Satellites provide a low cost educational transponder supporting not only GPS position reporting but also remote WX stations and other data link experiments and other University and School Experiments.

77 May 08 Internet Linked Ground Stns pcsat.aprs.org Daily Players


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