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| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.18410 |
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| _version_ | 1866913625283756032 |
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| author | Bernardes, Denis Junior, Orlando Verducci Rodrigues, Francisco Rodrigues, Claudia Vilega Fraga, Luciano Martioli, Eder Gneiding, Clemens D. Alves, André Luiz de Moura Romão, Juliano Andrade, Laerte de Almeida, Leandro Mattiuci, Ana Carolina Ribeiro, Flavio Felipe Schlindwein, Wagner Santos, Jesulino Bispo dos Jablonski, Francisco Jose Campagnolo, Julio Cesar Neves Laporte, Rene |
| author_facet | Bernardes, Denis Junior, Orlando Verducci Rodrigues, Francisco Rodrigues, Claudia Vilega Fraga, Luciano Martioli, Eder Gneiding, Clemens D. Alves, André Luiz de Moura Romão, Juliano Andrade, Laerte de Almeida, Leandro Mattiuci, Ana Carolina Ribeiro, Flavio Felipe Schlindwein, Wagner Santos, Jesulino Bispo dos Jablonski, Francisco Jose Campagnolo, Julio Cesar Neves Laporte, Rene |
| contents | SPARC4 is a new astronomical instrument developed entirely by Brazilian institutions, currently installed on the 1.6-m Perkin-Elmer telescope of the Pico dos Dias Observatory. It allows the user to perform photometric or polarimetric observations simultaneously in the four SDSS bands (g, r, i, and z). In this paper, we describe the control system developed for SPARC4. This system is composed of S4ACS, S4ICS, and S4GUI softwares and associated hardware. S4ACS is responsible for controlling the four EMCCD scientific cameras (one for each instrument band). S4ICS controls the sensors and motors responsible for the moving parts of SPARC4. Finally, S4GUI is the interface used to perform observations, which includes the choice of instrument configuration and image acquisition parameters. S4GUI communicates with the instrument subsystems and with some observatory facilities, needed during the observations. Bench tests were performed for the determination of the overheads added by SPARC4 control system in the acquisition of photometric and polarimetric series of images. In the photometric mode, SPARC4 allows the acquisition of a series of 1400 full-frame images, with a deadtime of 4.5 ms between images. Besides, several image series can be concatenated with a deadtime of 450 ms plus the readout time of the last image. For the polarimetric mode, measurements can be obtained with a deadtime of 1.41 s plus the image readout time between subsequent waveplate positions. For both photometric and polarimetric modes, the user can choose among operating modes with image readout times between 5.9 ms and 1.24 s, which ultimately defines the instrument temporal performance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_18410 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | SPARC4 control system Bernardes, Denis Junior, Orlando Verducci Rodrigues, Francisco Rodrigues, Claudia Vilega Fraga, Luciano Martioli, Eder Gneiding, Clemens D. Alves, André Luiz de Moura Romão, Juliano Andrade, Laerte de Almeida, Leandro Mattiuci, Ana Carolina Ribeiro, Flavio Felipe Schlindwein, Wagner Santos, Jesulino Bispo dos Jablonski, Francisco Jose Campagnolo, Julio Cesar Neves Laporte, Rene Instrumentation and Methods for Astrophysics SPARC4 is a new astronomical instrument developed entirely by Brazilian institutions, currently installed on the 1.6-m Perkin-Elmer telescope of the Pico dos Dias Observatory. It allows the user to perform photometric or polarimetric observations simultaneously in the four SDSS bands (g, r, i, and z). In this paper, we describe the control system developed for SPARC4. This system is composed of S4ACS, S4ICS, and S4GUI softwares and associated hardware. S4ACS is responsible for controlling the four EMCCD scientific cameras (one for each instrument band). S4ICS controls the sensors and motors responsible for the moving parts of SPARC4. Finally, S4GUI is the interface used to perform observations, which includes the choice of instrument configuration and image acquisition parameters. S4GUI communicates with the instrument subsystems and with some observatory facilities, needed during the observations. Bench tests were performed for the determination of the overheads added by SPARC4 control system in the acquisition of photometric and polarimetric series of images. In the photometric mode, SPARC4 allows the acquisition of a series of 1400 full-frame images, with a deadtime of 4.5 ms between images. Besides, several image series can be concatenated with a deadtime of 450 ms plus the readout time of the last image. For the polarimetric mode, measurements can be obtained with a deadtime of 1.41 s plus the image readout time between subsequent waveplate positions. For both photometric and polarimetric modes, the user can choose among operating modes with image readout times between 5.9 ms and 1.24 s, which ultimately defines the instrument temporal performance. |
| title | SPARC4 control system |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2412.18410 |