# Space Habitat Data Centers--For Future Computing
## 6 Feasibility and Performance Evaluation
### Feasibility of Accessing Asteroid Water Resources
\begin{table}
\begin{tabular}{c c c} \hline \hline \multicolumn{1}{c}{**s/n**} & **Name** & **Near-Earth Approach Dates** \\ \hline
6 & 2002-AH29 &
\begin{tabular}{c} 19 January 2032; 2 April 2047; 6 April 2062; 28 January 2092; 19 February 2107— \\ five approaches \\ \end{tabular} \\ \hline
7 & David-Harvey & 16 December 2003; 10 December 20072; 17 December 2111—three approaches \\ \hline
8 & 1999 VN6 &
\begin{tabular}{c} 27 November 2031; 22 November 2047; 25 November 2056; 1 December 2072; \\ 01 December 2088; 30 November 2104—six approaches. \\ \end{tabular} \\ \hline
9 & 2001 XS 1 & 08 December 2049; 08 December 2097—two approaches \\ \hline
10 & 2001 SJ262 & 17 October 2057; 06 October 2062; 14 October 2103—three approaches \\ \hline
11 & 11 May 2022; 21 December 2023; 16 August 2028; 14 June 2033; 16 December 2034; 1 May 2038; 30 September 2039; 31 July 2044; 30 December 2050; 26 April 2054; 18 September 2055; 5 January 2056; 24 July 2060; 28 December 2061; 27 May 2065; 14 December 2066; 26 April 2070; 18 September 2071; 5 January 2072; 27 July 2076; 29 December 2077; 1 June 2081; 15 December 2082; 30 April 2086; 28 September 2087; 1 January 2088; 6 August 2092; 17 December 2098; 7 May 2102—31 approaches \\ \hline
12 & 2002 DH2 &
\begin{tabular}{c} 6 July 2046; 8 April 2049; 10 Mar 2052; 22 February 2055; 6 July 2108— \\ five approaches \\ \end{tabular} \\ \hline
13 & Betulia & 7 June 2028; 8 May 2090; 13 May 2103—three approaches \\ \hline
14 & Sigurd &
\begin{tabular}{c} 12 October 2022; 18 September 2027; 7 August 2032; 2 October 2045, \\ 30 August 2050; 20 September 2068; 19 August 2073; 15 October 2086; \\ 9 September 2091; 8 August 2096; 30 September 2109—11 approaches \\ \end{tabular} \\ \hline
15 & 1991 XB & 30 November 2067; 28 November 2118–2 Approaches \\ \hline
16 & 2000-YO-29 &
\begin{tabular}{c} 24 December 2027; 10 June 2040; 26 December 2049; 17 June 2062; \\ 28 December 2071; 21 June 2084; 29 December 2093; 26 June 2106; \\ 31 December 2115—eight approaches \\ \end{tabular} \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont_. \begin{table}
\begin{tabular}{c c c c} \hline \hline \multicolumn{1}{c}{**s/n**} & **Access Dates** & **Access Intervals** & **Access Dates** & **Access Intervals** \\ \hline
1 & 3 October 2021 & [248;181] &
\begin{tabular}{c} 27 November 2031 \\ 19 January 2032 \\ \end{tabular} & [81;227] \\ \hline
2 & 11 May 2022 &
\begin{tabular}{c} 19 January 2032 \\ \end{tabular} & [81;227] \\ \hline
3 & 12 October 2022 & \
\begin{tabular}{c} [435;688] \\ \end{tabular} &
\begin{tabular}{c} 7 August 2032 \\ 14 June 2033 \\ \end{tabular} & [322;212] \\ \hline
5 & 15 October 2025 & \
\begin{tabular}{c} [536;223] \\ \end{tabular} &
\begin{tabular}{c} 16 December 2033 \\ 16 December 2034 \\ \end{tabular} & [390;469] \\ \hline
6 & 6 Mar 2027 & \
\begin{tabular}{c} [127;192] \\ \end{tabular} &
\begin{tabular}{c} 29 February 2036 \\ 24 Mar 2037 \\ \end{tabular} & [414;431] \\ \hline
9 & 7 June 2028 &
\begin{tabular}{c} 1 May 2038 \\ \end{tabular} & [539;215] \\ \hline
10 & 16 August 2028 & \
\begin{tabular}{c} [100;437] \\ \end{tabular} &
\begin{tabular}{c} 30 September 2039 \\ \end{tabular} & [539;215] \\ \hline
12 & 23 September 2031 &
\begin{tabular}{c} 6 2 April 2040 \\ 10 June 2040 \\ \end{tabular} & 95 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Access dates and intervals for water bearing asteroids. The results on the length of days where asteroid water can be accessed for zero WUE SHDC operation is obtained from the analysis of results presented in Table 2.  
The results of analysis that is presented in Table 1 aim to identify asteroids that have water suitable for use in cooling SHDCs. In addition, the near-Earth approaches dates and the feasible number of days for which asteroids (with water) can be approached is also presented. Asteroids are accessed with the aim of ensuring that SHDC operation in the absence of earth's water resources is feasible.