Pointing control for the SPIDER balloon-borne telescope

J. A. Shariff; P. A.R. Ade; M. Amiri; S. J. Benton; J. J. Bock; J. R. Bond; S. A. Bryan; H. C. Chiang; C. R. Contaldi; B. P. Crill; O. P. Doré; M. Farhang; J. P. Filippini; L. M. Fissel; A. A. Fraisse; A. E. Gambrel; N. N. Gandilo; S. R. Golwala; J. E. Gudmundsson; M. Halpern; M. Hasselfield; G. C. Hilton; W. A. Holmes; V. V. Hristov; K. D. Irwin; W. C. Jones; Z. D. Kermish; C. L. Kuo; C. J. MacTavish; P. V. Mason; K. G. Megerian; L. Moncelsi; T. A. Morford; J. M. Nagy; C. B. Netterfield; R. O'Brient; A. S. Rahlin; C. D. Reintsema; J. E. Ruhl; M. C. Runyan; J. D. Soler; A. Trangsrud; C. E. Tucker; R. S. Tucker; A. D. Turner; A. C. Weber; D. V. Wiebe; E. Y. Young

doi:10.1117/12.2055166

Pointing control for the SPIDER balloon-borne telescope

J. A. Shariff, P. A.R. Ade, M. Amiri, S. J. Benton, J. J. Bock, J. R. Bond, S. A. Bryan, H. C. Chiang, C. R. Contaldi, B. P. Crill, O. P. Doré, M. Farhang, J. P. Filippini, L. M. Fissel, A. A. Fraisse, A. E. Gambrel, N. N. Gandilo, S. R. Golwala, J. E. Gudmundsson, M. HalpernM. Hasselfield, G. C. Hilton, W. A. Holmes, V. V. Hristov, K. D. Irwin, W. C. Jones, Z. D. Kermish, C. L. Kuo, C. J. MacTavish, P. V. Mason, K. G. Megerian, L. Moncelsi, T. A. Morford, J. M. Nagy, C. B. Netterfield, R. O'Brient, A. S. Rahlin, C. D. Reintsema, J. E. Ruhl, M. C. Runyan, J. D. Soler, A. Trangsrud, C. E. Tucker, R. S. Tucker, A. D. Turner, A. C. Weber, D. V. Wiebe, E. Y. Young

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

13 Scopus citations

Abstract

We present the technology and control methods developed for the pointing system of the Spider experiment. Spider is a balloon-borne polarimeter designed to detect the imprint of primordial gravitational waves in the polarization of the Cosmic Microwave Background radiation. We describe the two main components of the telescope's azimuth drive: the reaction wheel and the motorized pivot. A 13 kHz PI control loop runs on a digital signal processor, with feedback from fibre optic rate gyroscopes. This system can control azimuthal speed with < 0.02 deg/s RMS error. To control elevation, Spider uses stepper-motor-driven linear actuators to rotate the cryostat, which houses the optical instruments, relative to the outer frame. With the velocity in each axis controlled in this way, higher-level control loops on the onboard flight computers can implement the pointing and scanning observation modes required for the experiment. We have accomplished the non-trivial task of scanning a 5000 lb payload sinusoidally in azimuth at a peak acceleration of 0.8 deg/s², and a peak speed of 6 deg/s. We can do so while reliably achieving sub-arcminute pointing control accuracy.

Original language	English (US)
Title of host publication	Ground-Based and Airborne Telescopes V
Editors	Helen J. Hall, Larry M. Stepp, Roberto Gilmozzi
Publisher	SPIE
ISBN (Electronic)	9780819496133
DOIs	https://doi.org/10.1117/12.2055166
State	Published - 2014
Externally published	Yes
Event	Ground-Based and Airborne Telescopes V - Montreal, Canada Duration: Jun 22 2014 → Jun 27 2014

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9145
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Ground-Based and Airborne Telescopes V
Country/Territory	Canada
City	Montreal
Period	6/22/14 → 6/27/14

Keywords

Spider
actuation
balloon-borne telescopes
control systems
cosmic microwave background

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2055166

Cite this

Shariff, J. A., Ade, P. A. R., Amiri, M., Benton, S. J., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Crill, B. P., Doré, O. P., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Gambrel, A. E., Gandilo, N. N., Golwala, S. R., Gudmundsson, J. E., ... Young, E. Y. (2014). Pointing control for the SPIDER balloon-borne telescope. In H. J. Hall, L. M. Stepp, & R. Gilmozzi (Eds.), Ground-Based and Airborne Telescopes V Article 91450U (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9145). SPIE. https://doi.org/10.1117/12.2055166

Pointing control for the SPIDER balloon-borne telescope. / Shariff, J. A.; Ade, P. A.R.; Amiri, M. et al.
Ground-Based and Airborne Telescopes V. ed. / Helen J. Hall; Larry M. Stepp; Roberto Gilmozzi. SPIE, 2014. 91450U (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9145).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Shariff, JA, Ade, PAR, Amiri, M, Benton, SJ, Bock, JJ, Bond, JR, Bryan, SA, Chiang, HC, Contaldi, CR, Crill, BP, Doré, OP, Farhang, M, Filippini, JP, Fissel, LM, Fraisse, AA, Gambrel, AE, Gandilo, NN, Golwala, SR, Gudmundsson, JE, Halpern, M, Hasselfield, M, Hilton, GC, Holmes, WA, Hristov, VV, Irwin, KD, Jones, WC, Kermish, ZD, Kuo, CL, MacTavish, CJ, Mason, PV, Megerian, KG, Moncelsi, L, Morford, TA, Nagy, JM, Netterfield, CB, O'Brient, R, Rahlin, AS, Reintsema, CD, Ruhl, JE, Runyan, MC, Soler, JD, Trangsrud, A, Tucker, CE, Tucker, RS, Turner, AD, Weber, AC, Wiebe, DV & Young, EY 2014, Pointing control for the SPIDER balloon-borne telescope. in HJ Hall, LM Stepp & R Gilmozzi (eds), Ground-Based and Airborne Telescopes V., 91450U, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9145, SPIE, Ground-Based and Airborne Telescopes V, Montreal, Canada, 6/22/14. https://doi.org/10.1117/12.2055166

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title = "Pointing control for the SPIDER balloon-borne telescope",

abstract = "We present the technology and control methods developed for the pointing system of the Spider experiment. Spider is a balloon-borne polarimeter designed to detect the imprint of primordial gravitational waves in the polarization of the Cosmic Microwave Background radiation. We describe the two main components of the telescope's azimuth drive: the reaction wheel and the motorized pivot. A 13 kHz PI control loop runs on a digital signal processor, with feedback from fibre optic rate gyroscopes. This system can control azimuthal speed with < 0.02 deg/s RMS error. To control elevation, Spider uses stepper-motor-driven linear actuators to rotate the cryostat, which houses the optical instruments, relative to the outer frame. With the velocity in each axis controlled in this way, higher-level control loops on the onboard flight computers can implement the pointing and scanning observation modes required for the experiment. We have accomplished the non-trivial task of scanning a 5000 lb payload sinusoidally in azimuth at a peak acceleration of 0.8 deg/s2, and a peak speed of 6 deg/s. We can do so while reliably achieving sub-arcminute pointing control accuracy.",

keywords = "Spider, actuation, balloon-borne telescopes, control systems, cosmic microwave background",

author = "Shariff, {J. A.} and Ade, {P. A.R.} and M. Amiri and Benton, {S. J.} and Bock, {J. J.} and Bond, {J. R.} and Bryan, {S. A.} and Chiang, {H. C.} and Contaldi, {C. R.} and Crill, {B. P.} and Dor{\'e}, {O. P.} and M. Farhang and Filippini, {J. P.} and Fissel, {L. M.} and Fraisse, {A. A.} and Gambrel, {A. E.} and Gandilo, {N. N.} and Golwala, {S. R.} and Gudmundsson, {J. E.} and M. Halpern and M. Hasselfield and Hilton, {G. C.} and Holmes, {W. A.} and Hristov, {V. V.} and Irwin, {K. D.} and Jones, {W. C.} and Kermish, {Z. D.} and Kuo, {C. L.} and MacTavish, {C. J.} and Mason, {P. V.} and Megerian, {K. G.} and L. Moncelsi and Morford, {T. A.} and Nagy, {J. M.} and Netterfield, {C. B.} and R. O'Brient and Rahlin, {A. S.} and Reintsema, {C. D.} and Ruhl, {J. E.} and Runyan, {M. C.} and Soler, {J. D.} and A. Trangsrud and Tucker, {C. E.} and Tucker, {R. S.} and Turner, {A. D.} and Weber, {A. C.} and Wiebe, {D. V.} and Young, {E. Y.}",

note = "Publisher Copyright: {\textcopyright} 2014 SPIE.; Ground-Based and Airborne Telescopes V ; Conference date: 22-06-2014 Through 27-06-2014",

year = "2014",

doi = "10.1117/12.2055166",

language = "English (US)",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Hall, {Helen J.} and Stepp, {Larry M.} and Roberto Gilmozzi",

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TY - GEN

T1 - Pointing control for the SPIDER balloon-borne telescope

AU - Shariff, J. A.

AU - Ade, P. A.R.

AU - Amiri, M.

AU - Benton, S. J.

AU - Bock, J. J.

AU - Bond, J. R.

AU - Bryan, S. A.

AU - Chiang, H. C.

AU - Contaldi, C. R.

AU - Crill, B. P.

AU - Doré, O. P.

AU - Farhang, M.

AU - Filippini, J. P.

AU - Fissel, L. M.

AU - Fraisse, A. A.

AU - Gambrel, A. E.

AU - Gandilo, N. N.

AU - Golwala, S. R.

AU - Gudmundsson, J. E.

AU - Halpern, M.

AU - Hasselfield, M.

AU - Hilton, G. C.

AU - Holmes, W. A.

AU - Hristov, V. V.

AU - Irwin, K. D.

AU - Jones, W. C.

AU - Kermish, Z. D.

AU - Kuo, C. L.

AU - MacTavish, C. J.

AU - Mason, P. V.

AU - Megerian, K. G.

AU - Moncelsi, L.

AU - Morford, T. A.

AU - Nagy, J. M.

AU - Netterfield, C. B.

AU - O'Brient, R.

AU - Rahlin, A. S.

AU - Reintsema, C. D.

AU - Ruhl, J. E.

AU - Runyan, M. C.

AU - Soler, J. D.

AU - Trangsrud, A.

AU - Tucker, C. E.

AU - Tucker, R. S.

AU - Turner, A. D.

AU - Weber, A. C.

AU - Wiebe, D. V.

AU - Young, E. Y.

PY - 2014

Y1 - 2014

N2 - We present the technology and control methods developed for the pointing system of the Spider experiment. Spider is a balloon-borne polarimeter designed to detect the imprint of primordial gravitational waves in the polarization of the Cosmic Microwave Background radiation. We describe the two main components of the telescope's azimuth drive: the reaction wheel and the motorized pivot. A 13 kHz PI control loop runs on a digital signal processor, with feedback from fibre optic rate gyroscopes. This system can control azimuthal speed with < 0.02 deg/s RMS error. To control elevation, Spider uses stepper-motor-driven linear actuators to rotate the cryostat, which houses the optical instruments, relative to the outer frame. With the velocity in each axis controlled in this way, higher-level control loops on the onboard flight computers can implement the pointing and scanning observation modes required for the experiment. We have accomplished the non-trivial task of scanning a 5000 lb payload sinusoidally in azimuth at a peak acceleration of 0.8 deg/s2, and a peak speed of 6 deg/s. We can do so while reliably achieving sub-arcminute pointing control accuracy.

AB - We present the technology and control methods developed for the pointing system of the Spider experiment. Spider is a balloon-borne polarimeter designed to detect the imprint of primordial gravitational waves in the polarization of the Cosmic Microwave Background radiation. We describe the two main components of the telescope's azimuth drive: the reaction wheel and the motorized pivot. A 13 kHz PI control loop runs on a digital signal processor, with feedback from fibre optic rate gyroscopes. This system can control azimuthal speed with < 0.02 deg/s RMS error. To control elevation, Spider uses stepper-motor-driven linear actuators to rotate the cryostat, which houses the optical instruments, relative to the outer frame. With the velocity in each axis controlled in this way, higher-level control loops on the onboard flight computers can implement the pointing and scanning observation modes required for the experiment. We have accomplished the non-trivial task of scanning a 5000 lb payload sinusoidally in azimuth at a peak acceleration of 0.8 deg/s2, and a peak speed of 6 deg/s. We can do so while reliably achieving sub-arcminute pointing control accuracy.

KW - Spider

KW - actuation

KW - balloon-borne telescopes

KW - control systems

KW - cosmic microwave background

UR - http://www.scopus.com/inward/record.url?scp=84922705287&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922705287&partnerID=8YFLogxK

U2 - 10.1117/12.2055166

DO - 10.1117/12.2055166

M3 - Conference contribution

AN - SCOPUS:84922705287

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Ground-Based and Airborne Telescopes V

A2 - Hall, Helen J.

A2 - Stepp, Larry M.

A2 - Gilmozzi, Roberto

PB - SPIE

T2 - Ground-Based and Airborne Telescopes V

Y2 - 22 June 2014 through 27 June 2014

ER -

Pointing control for the SPIDER balloon-borne telescope

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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