A method for establishing a long duration, stratospheric platform for astronomical research

During certain times of the year at middle and low latitudes, winds in the upper stratosphere move in nearly the opposite direction than the wind in the lower stratosphere. Here we present a method for maintaining a high-altitude balloon platform in near station-keeping mode that utilizes this stratospheric wind shear. The proposed method places a balloon-borne science platform high in the stratosphere connected by a lightweight, high-strength tether to a tug vehicle located in the lower or middle stratosphere. Using aerodynamic control surfaces, wind-induced aerodynamic forces on the tug can be manipulated to counter the wind drag acting on the higher altitude science vehicle, thus controlling the upper vehicle’s geographic location. We describe the general framework of this station-keeping method, some important properties required for the upper stratospheric science payload and lower tug platforms, and compare this station-keeping approach with the capabilities of a high altitude airship and conventional tethered aerostat approaches. We conclude by discussing the advantages of such a platform for a variety of missions with emphasis on astrophysical research.

[1]  N. Woolf,et al.  Infrared Spectra of Red-Giant Stars. , 1964 .

[2]  Christ Ftaclas,et al.  Artemis: a stratospheric planet finder , 2002 .

[3]  R. E. Danielson,et al.  AN UPPER LIMIT TO THE ANGULAR DIAMETER OF THE NUCLEUS OF NGC 4151. , 1968 .

[4]  Lisa L. Kohout,et al.  High Altitude Long Endurance Air Vehicle Analysis of Alternatives and Technology Requirements Development , 2007 .

[5]  Isaac R. Porche,et al.  High-Altitude Airships for the Future Force Army , 2005 .

[6]  David Grace,et al.  Improving the system capacity of broadband services using multiple high-altitude platforms , 2005, IEEE Transactions on Wireless Communications.

[7]  Deniz Unsalan,et al.  A low cost alternative for satellites- tethered ultra-high altitude balloons , 2011, Proceedings of 5th International Conference on Recent Advances in Space Technologies - RAST2011.

[8]  D. Akita.  Feasibility study of a sea-anchored stratospheric balloon for long-duration flights , 2012 .

[9]  Goran M. Djuknic,et al.  Establishing wireless communications services via high-altitude aeronautical platforms: a concept whose time has come? , 1997, IEEE Commun. Mag..

[10]  Robert A. Fesen,et al.  A high-altitude station-keeping astronomical platform , 2006, SPIE Astronomical Telescopes + Instrumentation.

[11]  Rajkumar S. Pant,et al.  Airships As A Low Cost Alternative To Communication Satellites , 2005 .

[12]  Robert W. Phillips,et al.  High altitude platform stations for Australia , 2008 .

[13]  Alister G. Burr,et al.  LMDS from high altitude aeronautical platforms , 1999, Seamless Interconnection for Universal Services. Global Telecommunications Conference. GLOBECOM'99. (Cat. No.99CH37042).

[14]  Pierre Y. Bely,et al.  High-altitude aerostats as astronomical platforms , 1995, Defense, Security, and Sensing.

[15]  Lee Rainwater,et al.  Applications of Scientific Ballooning Technology to High Altitude Airships , 2003 .

[16]  Ralf S. Klessen,et al.  The Formation of Supermassive Black Holes in the First Galaxies , 2010, 1004.4532.

[17]  Surjit S. Badesha.  SPARCL: a high-altitude tethered balloon-based optical space-to-ground communication system , 2002, SPIE Optics + Photonics.

[18]  Guglielmo S. Aglietti.  Dynamic Response of a High-Altitude Tethered Balloon System , 2009 .

[19]  K. Eguchi,et al.  Feasibility study program on stratospheric platform airship technology in Japan , 1999 .

[20]  Alejandro Aragn-Zavala,et al.  High-altitude platforms for wireless communications , 2008 .

[21]  Debora A. Grant,et al.  Dynamic analysis of an ascending high altitude tethered balloon , 1996 .

[22]  Jack Aldrich,et al.  The Debris Disk Explorer: a balloon-borne coronagraph for observing debris disks , 2013, Optics & Photonics - Optical Engineering + Applications.

[23]  T. Kremic,et al.  Science measurements and instruments for a planetary science stratospheric balloon platform , 2013, 2013 IEEE Aerospace Conference.

[24]  Lewis C. Roberts,et al.  Improved upper winds models for several astronomical observatories. , 2011, Optics express.

[25]  Ingolf Schaefer,et al.  Aerostatic platforms, past, present, and future: a prototype for astronomy? , 2000, Astronomical Telescopes and Instrumentation.

[26]  Lin Liao,et al.  A review of airship structural research and development , 2009 .

[27]  F. Rigal,et al.  Estimation of anisoplanatism in adaptive optics by generalized SCIDAR profiling , 2003 .

[28]  Kim M. Aaron,et al.  Aerodynamic and Mission Performance of a Winged Balloon Guidance System , 2007 .

[29]  Michael Lee,et al.  High-Altitude LTA Airship Efforts at the U.S. Army SMDC/ARSTRAT , 2009 .

[30]  M. Fortenberry,et al.  HiSentinel80: Flight of a High Altitude Airship , 2011 .

[31]  J. Vernin,et al.  Whole atmospheric-turbulence profiling with generalized scidar. , 1997, Applied optics.

[32]  J. C. del Toro Iniesta,et al.  Sunrise: INSTRUMENT, MISSION, DATA, AND FIRST RESULTS , 2010, 1008.3460.

[33]  Charles P. Cavedoni,et al.  Gemini multiconjugate adaptive optics system review - I. Design, trade-offs and integration , 2013, 1310.6199.

[34]  Gerhard F. O. von Appen-Schnur,et al.  I S L A An Astronomical World Space Observatory for The First Century of the 3 rd Millenium , 1997 .

[35]  Sergio Chueca,et al.  Cute SCIDAR: presentation of the new Canarian instrument and first observational results , 2004, SPIE Astronomical Telescopes + Instrumentation.

[36]  H. Lantéri,et al.  Single star scidar: atmospheric parameters profiling using the simulated annealing algorithm , 2006 .