Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Debra Emmons"'
Publikováno v:
Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave.
We are at a crossroads today with large and complex missions, known as flagships: while much has been achieved to lower their size, weight, and power demands, there are science questions that cannot be answered but through the exquisite measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f575b9a730f48b03dfb1f24c9ea3bbe
https://doi.org/10.1117/12.2561023
https://doi.org/10.1117/12.2561023
Publikováno v:
2019 IEEE Aerospace Conference.
Large, strategic “Flagship” missions have unique characteristics that lead to challenging developmental difficulties for the National Aeronautics and Space Administration (NASA). Missions such as the Hubble Space Telescope (HST), James Webb Space
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a536be92975d61028164612d2c0ff105
https://doi.org/10.1109/aero.2019.8741920
https://doi.org/10.1109/aero.2019.8741920
Publikováno v:
2018 IEEE Aerospace Conference.
The original National Aeronautics and Space Administration (NASA) Explanation of Change (EoC) study was conducted in 2010 to understand the underlying causes of cost and schedule growth. The first study consisted of 25 missions launched from 2000 to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::980ad6787c322b2e8163d2c767eed19a
https://doi.org/10.1109/aero.2018.8396407
https://doi.org/10.1109/aero.2018.8396407
Publikováno v:
2018 IEEE Aerospace Conference.
NASA implemented policy changes starting in 2006 that required projects to budget to probabilistic cost and schedule estimates. This paper will address the policy changes and quantify the cost and schedule increase for NASA Science missions before an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c4aa6c88f53f15da31ba7c21576cf35
https://doi.org/10.1109/aero.2018.8396408
https://doi.org/10.1109/aero.2018.8396408
Publikováno v:
2016 IEEE Aerospace Conference.
Numerous research papers have shown that cost and schedule growth are interrelated for NASA space science missions. Although there has shown to be a strong correlation of cost growth with schedule growth, it is unclear what percentage of cost growth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61a8e112bce4fc16cab8ca9e1ee716dd
https://doi.org/10.1109/aero.2016.7500552
https://doi.org/10.1109/aero.2016.7500552
Autor:
Bob Bitten, Debra Emmons
Publikováno v:
AIAA SPACE 2013 Conference and Exposition.
The Explanation of Change This study investigated thirty historical NASA science missions to explain the cost change experienced. The study included investigation of historical milestone and monthly status report documentation followed by interviews
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::421fdb8e898bac49a8da56828da3660d
https://doi.org/10.2514/6.2013-5370
https://doi.org/10.2514/6.2013-5370
Publikováno v:
2013 IEEE Aerospace Conference.
This study investigated thirty historical NASA science missions to explain the cost change experienced. The study included investigation of historical milestone and monthly status report documentation followed by interviews with key project personnel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aefec57e13e747a59f07bdeef2da99d0
https://doi.org/10.1109/aero.2013.6496905
https://doi.org/10.1109/aero.2013.6496905
Autor:
Debra Emmons, Matthew J. Hart, Christopher J. Scolese, Noel Hinners, Robert E. Bitten, Francesco Bordi
Publikováno v:
2013 IEEE Aerospace Conference.
This paper discusses the implementation of considerations resulting from a study investigating the cost change experienced by historical NASA science missions. The study investigated historical milestone and monthly status report documentation follow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd8df2244c71d6822e9d5a5e18dd3b13
https://doi.org/10.1109/aero.2013.6496906
https://doi.org/10.1109/aero.2013.6496906
Publikováno v:
AIAA SPACE 2012 Conference & Exposition.
Phase E is the long awaited payoff for the development of NASA science missions as it encompasses both the mission operations to collect the science data required for success as well as the data analysis to turn the data into a final useable product.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a70c4ad38195ae75ecae3075b4f5cd5a
https://doi.org/10.2514/6.2012-5138
https://doi.org/10.2514/6.2012-5138
Publikováno v:
2010 IEEE Aerospace Conference.
NASA's goal to provide a human presence in space while contributing to the knowledge of the science of Earth, other planets, the solar system, and the universe requires a diverse set of scientific and exploration missions.12 Successful development an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a532894b5adb736c06342c6776d8c627
https://doi.org/10.1109/aero.2010.5446893
https://doi.org/10.1109/aero.2010.5446893