The Puzzling Case of the Deep-Space Debris WT1190F: A Test Bed for Advanced SSA Techniques

Author(s):  
Alberto Buzzoni ◽  
Siwei Fan ◽  
Carolin Frueh ◽  
Giuseppe Altavilla ◽  
Italo Foppiani ◽  
...  
Keyword(s):  
1991 ◽  
Vol 112 ◽  
pp. 153-164
Author(s):  
L. G. Taff

ABSTRACTOptical observations of near Earth and deep-space debris conducted at M.I.T.’s artificial satellite observatory will be discussed. A brief review of observing technique, regions of high debris density, and amount of debris in orbit will be given. The unique, duplex facilities of the observatory allow the discrimination of debris from meteors, the construction of an orbital element set, and real-time identification of cataloged artificial satellites. Near-Earth debris is present in large numbers in all the popular near-Earth orbits; at least 5-6 times the 5000-6000 objects in the NORAD catalog. In deep-space, the new presence of Ariane-related debris adds significantly to the existing population which is treble that cataloged by NORAD.


2019 ◽  
Vol 63 (1) ◽  
pp. 371-393 ◽  
Author(s):  
Alberto Buzzoni ◽  
Giuseppe Altavilla ◽  
Siwei Fan ◽  
Carolin Frueh ◽  
Italo Foppiani ◽  
...  

Icarus ◽  
2018 ◽  
Vol 304 ◽  
pp. 4-8 ◽  
Author(s):  
Marco Micheli ◽  
Alberto Buzzoni ◽  
Detlef Koschny ◽  
Gerhard Drolshagen ◽  
Ettore Perozzi ◽  
...  
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Author(s):  
James H. Adams ◽  
Leonard Adcock ◽  
Jeffery Apple ◽  
Mark Christl ◽  
William Cleveand ◽  
...  
Keyword(s):  

2013 ◽  
Vol 3 (2) ◽  
pp. 97-110
Author(s):  
Janice Brown

Lewis’s perspective on angels is apparent in The Discarded Image, his scholarly work on medieval and Renaissance literature. His preface to The Screwtape Letters reveals the seriousness with which he approaches the subject: it proposes that a mistaken view of angelic beings is more dangerous than ignorance of them. The space trilogy seeks to avert that danger. In it we are confronted by angelic eldila—inscrutable and holy beings inhabiting “deep space” who relentlessly accomplish the purposes of the Almighty. Characterized by absolute goodness and archetypal charity, they are serene yet they pulsate with energy. Lewis’s intense interest in angels is further apparent in a number of his poems. Throughout his work he depicts angels as real beings, inhabiting an actual universe, who actually participate our lives. They represent mysterious eternal realities, yet they are part of God’s daily providence.


2017 ◽  
Vol 23 (1) ◽  
pp. 36-49
Author(s):  
V.A. Shuvalov ◽  
◽  
N.B. Gorev ◽  
N.A. Tokmak ◽  
N.I. Pismennyi ◽  
...  

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