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CCAT Tech Memos

  No.         Date       
  Link/Format  
Title
           Authors           
1 2004-06-23 pdf, doc The Large Atacama Submm Telescope Herter et al.
2 2005-01-15 pdf, doc Segmented Primary Numerology Herter
3 2005-03-13 pdf, doc Atacama PWV Distribution Herter & Radford
4     Atmospheric Transmission  
5 2005-05-09 pdf, doc CCAT Optical Prescription (spreadsheet) Herter & Cortes
6     CCAT Sensitivity Document & Spreadsheet  
7 2004-08-09 pdf Atacama Submm Telescope Design Issues Woody
8 2004-11-23 pdf, doc   Atacama Submm Telescope Straw-Man Concept   Sebring
9 2005-05-10 pdf CCAT Survey/Mapping Speed Herter
10 2005-05-09 pdf, doc   CCAT Optical Performance Requirements   Herter & Cortes
11 2005-05-09 pdf   Position of CCAT Equipment on Cordon Honar Shoulder   Radford
12 2005-06-13 pdf   Sensitivity of Edge Sensors to Zernike Modes   Woody
13 2005-07-22 pdf   Preliminary Geological / Geotechnical Site Assessment - Cordon Honar   Rojas
14 2005-08-11 pdf   Considerations for a Secondary Mirror Nutator   Radford & Cortes
15 2005-11-21 pdf   CCAT pointing: requirements and source densities   Bradford
16 2006-01-31 pdf   Planet observability for submillimeter wavefront sensing   Radford
17 2006-03-06 pdf   Science Requirements and Chopping Secondary for CCAT   Goldsmith
18 2006-04-10 pdf   CCAT Primary Mirror Focal Ratio   Radford et al.
19 2006-04-14 pdf   Environmental Sensitivity of Optical Metrology   Radford
20 2006-07-06 pdf   Surface Maintenance Strategy for Segmented Telescopes Based on Wavefront Optimization   Zmuidzinas
21 2007-02-21 pdf   CCAT - does it need an enclosure?   Sebring et al.
22 2007-05-22 pdf   CCAT acquisition/guider design   Herter
23 2007-05-17 pdf   Rafted panel concept   Woody
24 2007-09-06 pdf   Refractive Pointing Jitter at the Chajnantor Plateau   Radford
25 2008-03-07 pdf   Daytime Observing with CCAT   Radford
26 2008-07-23 pdf   Panel options for large precision radio telescopes   Woody et al.
27 2009-02-09 pdf   Preliminary results from measurement on the JPL Test Panel at the CSO Leighton Telescope   Chamberlin
28 2009-05-14 pdf   CCAT field of view   Padin
29 2009-05-18 pdf   CCAT secondary position errors   Padin
30 2009-06-04 pdf   A direct aperture plane surface alignment technique   Woody
31 2009-06-26 pdf   CCAT panels   Padin
32 2009-06-15 pdf   CCAT primary truss: CFRP or steel?   Padin
33 2009-06-27 pdf   CCAT panel areal density   Padin
34 2009-06-27 pdf   CCAT center of curvature wavefront sensor   Padin
35 2009-07-02 pdf   Applying thermal homology to telescope structure design   Woody
36 2009-07-03 pdf   CCAT seeing   Padin
37 2009-07-30 pdf   CCAT relay optics   Padin
38 2009-08-09 pdf   CCAT dome spillover   Padin
39 2009-08-20 pdf   CCAT surface control - smooth or scalloped?   Padin
40 2009-08-21 pdf   CCAT pointing   Padin
41 2009-08-29 pdf   Conceptual design for the CCAT primary and tipping structure   Woody
42 2009-10-07 pdf   CCAT WFS sensitivity   Padin
43 2009-10-11 pdf   CCAT secondary support   Padin
44 2009-08-31 pdf   CCAT at IR wavelengths   Padin
45 2009-12-01 pdf   Implementation Options for the CCAT Control System   Terrett et al.
46 2009-11-11 pdf   CCAT optics plan   Padin, Radford, Sebring & Woody
47 2010-05-20 pdf   CCAT optical design for 1 degree FOV   Padin
48 2011-09-22 pdf   CCAT requirements   Padin
49 2010-05-24 pdf   CCAT truss requirements   Woody, Padin & Sebring
50 2009-07-20 pdf   Wide FOV mount for CCAT   Sebring & Parshley
51 2009-12-02 pdf   CCAT truss issues   Woody & Padin
52 2010-01-28 pdf   CCAT secondary mirror   Padin
53 2010-01-01 pdf   CCAT panel temperature measurements   Sheng
54 2009-09-25 pdf   Cost of increasing the field of view of CCAT   Padin
55 2010-02-01 pdf   Slewing rings for CCAT elevation bearings   Padin
56 2011-06-13 pdf   Wind on CCAT   Padin
57 2013-08-30 xlsx   CCAT error estimate moved to doc system as TSSE-RPT-00003   Padin & Woody
58 2010-03-18 pdf   Temperature variations in CCAT's steel EL structure   Padin
59 2010-03-30 pdf   CCAT segment actuator requirements   Padin
60 2010-04-30 pdf   Spherical tiles for CCAT   Padin
61 2010-05-06 pdf   CCAT pier requirements   Padin & Sebring
62 2010-12-13 pdf   A stable pointing telescope for CCAT   Padin
63 2010-09-07 pdf   CCAT secondary support   Feeney
64 2010-09-07 pdf, zip   CCAT two lens camera configurations   Feeney
65 2010-09-29 pdf   Invar vs. steel nodes   Woody & Padin
66 2010-11-01 pdf   Thermal model of a CCAT segment   Padin
67 2010-11-29 pdf   An inexpensive enclosure for CCAT   Padin, Woody & Glenn
68 2010-12-09 pdf   Segment changer for CCAT   Padin
69 2010-12-15 pdf   Secondary decenter & tilt sensors for CCAT   Padin
70 2011-01-14 pdf   An SMT like CCAT enclosure   Woody, Padin & Glenn
71 2011-05-18 pdf   Primary mirror subframe support   Kissil
72 2011-06-10 pdf   Earthquakes   Padin
73 2011-06-11 pdf   CCAT segment dimensions   Woody
74 2011-06-06 pdf   Pointing Requirements   Radford
75 2011-07-14 pdf   CCAT wavefront control   Redding et al.
76 2011-09-22 pdf   CCAT tertiary mirror   Padin
77 2011-08-30 txt, zip   Matlab sensitivity calculator for CCAT   Padin
78 2011-09-02 pdf   CCAT secondary support top end geometry   Feeney
79 2011-09-28 pdf   Bending stress in secondary support members   Feeney
80 2011-09-07 pdf   Imaging displacement sensor report Woody, Redding, Padin & Tong
81 2011-09-27 pdf   Secondary support towers   Feeney
82 2011-09-23 pdf   A tile adjuster concept   Woody
83 2011-09-26 pdf   Wavefront sensor test plan   Wallace
84 2011-09-14 pdf   Using resonant frequency to characterize the quality of a structural design   Woody & Rasmussen
85 2011-10-13 pdf, mpg   Truss optimization   Rasmussen
86 2011-11-21 pdf   Document Standards Plan Moved to doc system as MGSE-STD-00001  Zolkower
87 2011-11-11 pdf   A compact shed enclosure for CCAT   Padin
88 2012-01-23 pdf   CCAT secondary mirror subframe   Padin
89 2014-06-08 pdf   CCAT power requirements   Padin
90 2012-01-07 pdf   Aplanatic Gregory design for CCAT   Padin
91 2012-01-07 pdf   Summary of Tertiary Sub-frame FEA Study   Zolkower
92 2012-01-07 pdf   Truss Construction Tolerances   Woody
93 2013-05-20 pdf   Gregorian secondary details   Padin
94 2012-03-20 pdf   Document Standards Plan - draft Moved to doc system as MGSE-STD-00001   Zolkower
95 2012-04-25 pdf   Primary truss cost vs. performance   Woody
96 2013-02-23 pdf   CCAT drive   Padin
97 2012-02-11 pdf   CCAT top end   Padin
98 2012-07-02 pdf   CCAT electronics thermal packaging   Padin
99 2013-06-01 pdf   A simple subframe for CCAT primary segments   Padin
100 2014-06-02 pdf   CCAT cooling system   Padin
101 2012-08-09 pdf   Truss node and actuator analysis   Rasmussen
102 2012-08-15 pdf   Secondary holography setup for CCAT   Padin
103 2012-12-17 pdf   Holography measurements of the CCAT primary   Padin
104 2012-09-06 pdf   Surface error vs. size for active radio telescopes   Padin
105 2012-09-10 pdf   CCAT segment thermal cupping analysis   Lou
106 2012-10-06 pdf   Stress in glue joints   Padin
107 2014-06-20 pdf   Telescope alignment Moved to doc system as TSSE-RPT-00004   Padin
108 2012-10-30 pdf   Secondary & Tertiary Tile Deformation   Zolkower
109 2012-11-12 pdf   Correct sampling of diffraction limited images   Shepherd
110 2012-09-24 pdf   Report on the effect different segment attachment schemes   Woody
111 2012-12-20 pdf   Parallactic angle tracking for CCAT   Padin
112 2012-12-21 pdf   Cerro Chajnantor Water Vapor and Atmospheric Transmission   Radford
113 2013-01-02 pdf   Shearing interferometer for CCAT   Padin
114 2013-02-09 pdf, zip   Tertiary subframe thermal tests   Padin
115 2013-02-18 pdf, zip   Optical prescription for CCAT   Padin
116 2014-06-20 pdf   Secondary and tertiary alignment Moved to doc system as TSSM-RPT-00001   Padin
117 2013-07-03 pdf   Subframe tap tests   Padin & Zolkower
118 2014-05-15 pdf   Telescope deformation   Padin
119 2014-06-12 pdf   Subframe thermal tests   Padin, Bradford & Bach
120 2013-09-03 pdf   Telescope design summary   Chauvin et al.
121 2013-07-22 pdf   Truss flexure analysis   Woody
122 2013-09-10 pdf   CCAT near aperture diffracted fields   Cortes
123 2013-09-10 pdf   Anti reflective layer design for silicon lenses and vacuum windows for CCAT   Cortes
124 2013-09-04 pdf   Tertiary Mirror Details   Zolkower
125 2013-09-13 pdf   CCAT EL ring stiffness   Padin
126 2013-10-08 pdf   Dust storms   Hills
127 2013-09-27 pdf   Laser tracker target robot   Fouad
128 2014-03-05 pdf, zip   4 mirror optical designs for CCAT   Padin
129 2013-11-05 pdf, zip   Polarisation Characteristics of the CCAT Optics   Williamson
130 2013-11-14 pdf   CCAT scan test patterns   Padin, Bradford, Stutzki & Dowell
131 2014-02-19 pdf   Telescope Finite Element Model Revisions   Zolkower
132 2014-05-20 pdf   Wind tunnel tests   Padin
133 2014-04-10 pdf   CMM calibration   Padin
134 2014-06-17 pdf   Enclosure door wind buffeting   Padin
135 2014-06-23 pdf   Primary segment thermal distortion   Woody
136 2014-07-08 pdf   Sun on CCAT   Padin
137 2014-08-26 pdf   Secondary subframe thermal deformation   Wimmer
138 2015-03-12 pdf   Wind speed probability distribution   Zolkower

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* Flexure_analysis_CCAT-TM-121.pdf: analysis of truss to tipping platform connection

* pol.pdf: V1 Polarisation analysis

* pol.zip: Zip file with model and results * Primary_segment_thermal_distortion_2014JUN23.pdf: Primary segment thermal distortion

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