The SPHEREx Instrument: Calibration, testing and performance measurements of the NIR 2 spectroscopic surveyor from the laboratory to in-orbit commissioning
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arXiv
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| Format: | Preprint |
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2026
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| author | Korngut, Phil M. Bock, James J. Condon, Samuel Dowell, C. Darren Fazar, Candice M. Hui, Howard Moore, Bradley D. Naylor, Bret J. Nguyen, Chi H. Padin, Stephen Wincentsen, James Aboobaker, Asad M. Akeson, Rachel Alred, John M. Alibay, Farah Ashby, Matthew L. N. Bach, Yoonsoo P. Bichel, Joseph Bolton, Douglas Braun, David F. Brown, Thomas Bryan, Sean A. Burnham, Jill Burk, Thomas A. Burke, Nicholas Catching, Ben Chang, Tzu-Ching Chen, Shuang-Shuang Cheng, Yun-Ting Chiang, Yi-Kuan Chong, Yong Cooray, Asantha Cook, Walter R. Cormarkovic, Velibor Crill, Brendan P. Cukierman, Ari J. Davis, Andrew Darga, Dan Disarro, Thomas Dore, Olivier Fabinsky, Beth E. Faisst, Andreas L. Fanson, James L. Farrington, Allen H. Fatahi, Tamim Feder, Richard M. Frater, Eric H. Goldina, Tatiana Gorjian, Varoujan Hart, William G. Hendricks, Warren Hora, Joseph L. Hristov, Viktor Huai, Zhaoyu Hulse, Charles A. Jo, Young-Soo Jeong, Woong-Seob Kamei, Makenzie L. Kang, Jae Hwan Kecman, Branislav Marchant, Will Mariani, Giacomo Masters, Daniel C. Melnick, Gary J. Miyasaka, Hiromasa Murgia, Giulia Nelson, Christina Nguyen, Hien T. Owen, Christopher Paladini, Roberta Park, Sung-Joon Patil, Harshad Penanen, Konstantin Piazzo, Chris Pyo, Jeonghyun Quon, Amelia Ramanathan, Keshav Rustamkulov, Zafar Reiley, Daniel J. Rice, Eric B. Ridenhour, Flora Roberts, Amber Rocca, Jennifer M. Signorini, Alessandro Susca, Sara Tolls, Volker Velicheti, Phani Wang, Pao-Yu Werner, Michael W. White, Casey Williamson, Ross Yang, Yujin Zemcov, Michael |
| author_facet | Korngut, Phil M. Bock, James J. Condon, Samuel Dowell, C. Darren Fazar, Candice M. Hui, Howard Moore, Bradley D. Naylor, Bret J. Nguyen, Chi H. Padin, Stephen Wincentsen, James Aboobaker, Asad M. Akeson, Rachel Alred, John M. Alibay, Farah Ashby, Matthew L. N. Bach, Yoonsoo P. Bichel, Joseph Bolton, Douglas Braun, David F. Brown, Thomas Bryan, Sean A. Burnham, Jill Burk, Thomas A. Burke, Nicholas Catching, Ben Chang, Tzu-Ching Chen, Shuang-Shuang Cheng, Yun-Ting Chiang, Yi-Kuan Chong, Yong Cooray, Asantha Cook, Walter R. Cormarkovic, Velibor Crill, Brendan P. Cukierman, Ari J. Davis, Andrew Darga, Dan Disarro, Thomas Dore, Olivier Fabinsky, Beth E. Faisst, Andreas L. Fanson, James L. Farrington, Allen H. Fatahi, Tamim Feder, Richard M. Frater, Eric H. Goldina, Tatiana Gorjian, Varoujan Hart, William G. Hendricks, Warren Hora, Joseph L. Hristov, Viktor Huai, Zhaoyu Hulse, Charles A. Jo, Young-Soo Jeong, Woong-Seob Kamei, Makenzie L. Kang, Jae Hwan Kecman, Branislav Marchant, Will Mariani, Giacomo Masters, Daniel C. Melnick, Gary J. Miyasaka, Hiromasa Murgia, Giulia Nelson, Christina Nguyen, Hien T. Owen, Christopher Paladini, Roberta Park, Sung-Joon Patil, Harshad Penanen, Konstantin Piazzo, Chris Pyo, Jeonghyun Quon, Amelia Ramanathan, Keshav Rustamkulov, Zafar Reiley, Daniel J. Rice, Eric B. Ridenhour, Flora Roberts, Amber Rocca, Jennifer M. Signorini, Alessandro Susca, Sara Tolls, Volker Velicheti, Phani Wang, Pao-Yu Werner, Michael W. White, Casey Williamson, Ross Yang, Yujin Zemcov, Michael |
| contents | The SPHEREx near-infrared space telescope is an all-sky spectroscopic survey mission launched on March 12th, 2025 UTC. In addition to providing the community with a spectral database applicable to a wide range of investigations, it is optimized to address three core science goals: to survey the large scale structure of the Universe for signatures of non-Gaussianity during inflation; to conduct intensity mapping studies of the extragalactic background light for probing the history of galaxy evolution; and to survey the plane of the Milky Way for the prevalence and distribution of water and other biogenic ices. Each of these science goals imposes unique requirements on the performance of the instrument. We detail the design and testing strategies and report the performance results for the full instrument test campaign, ranging from component-level screening to in-orbit tests during the commissioning phase. The instrument, currently operating in full science survey mode, meets all of its driving requirements including optical performance, point source sensitivity, thermal stability and correlated noise minimization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_29835 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The SPHEREx Instrument: Calibration, testing and performance measurements of the NIR 2 spectroscopic surveyor from the laboratory to in-orbit commissioning Korngut, Phil M. Bock, James J. Condon, Samuel Dowell, C. Darren Fazar, Candice M. Hui, Howard Moore, Bradley D. Naylor, Bret J. Nguyen, Chi H. Padin, Stephen Wincentsen, James Aboobaker, Asad M. Akeson, Rachel Alred, John M. Alibay, Farah Ashby, Matthew L. N. Bach, Yoonsoo P. Bichel, Joseph Bolton, Douglas Braun, David F. Brown, Thomas Bryan, Sean A. Burnham, Jill Burk, Thomas A. Burke, Nicholas Catching, Ben Chang, Tzu-Ching Chen, Shuang-Shuang Cheng, Yun-Ting Chiang, Yi-Kuan Chong, Yong Cooray, Asantha Cook, Walter R. Cormarkovic, Velibor Crill, Brendan P. Cukierman, Ari J. Davis, Andrew Darga, Dan Disarro, Thomas Dore, Olivier Fabinsky, Beth E. Faisst, Andreas L. Fanson, James L. Farrington, Allen H. Fatahi, Tamim Feder, Richard M. Frater, Eric H. Goldina, Tatiana Gorjian, Varoujan Hart, William G. Hendricks, Warren Hora, Joseph L. Hristov, Viktor Huai, Zhaoyu Hulse, Charles A. Jo, Young-Soo Jeong, Woong-Seob Kamei, Makenzie L. Kang, Jae Hwan Kecman, Branislav Marchant, Will Mariani, Giacomo Masters, Daniel C. Melnick, Gary J. Miyasaka, Hiromasa Murgia, Giulia Nelson, Christina Nguyen, Hien T. Owen, Christopher Paladini, Roberta Park, Sung-Joon Patil, Harshad Penanen, Konstantin Piazzo, Chris Pyo, Jeonghyun Quon, Amelia Ramanathan, Keshav Rustamkulov, Zafar Reiley, Daniel J. Rice, Eric B. Ridenhour, Flora Roberts, Amber Rocca, Jennifer M. Signorini, Alessandro Susca, Sara Tolls, Volker Velicheti, Phani Wang, Pao-Yu Werner, Michael W. White, Casey Williamson, Ross Yang, Yujin Zemcov, Michael Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies The SPHEREx near-infrared space telescope is an all-sky spectroscopic survey mission launched on March 12th, 2025 UTC. In addition to providing the community with a spectral database applicable to a wide range of investigations, it is optimized to address three core science goals: to survey the large scale structure of the Universe for signatures of non-Gaussianity during inflation; to conduct intensity mapping studies of the extragalactic background light for probing the history of galaxy evolution; and to survey the plane of the Milky Way for the prevalence and distribution of water and other biogenic ices. Each of these science goals imposes unique requirements on the performance of the instrument. We detail the design and testing strategies and report the performance results for the full instrument test campaign, ranging from component-level screening to in-orbit tests during the commissioning phase. The instrument, currently operating in full science survey mode, meets all of its driving requirements including optical performance, point source sensitivity, thermal stability and correlated noise minimization. |
| title | The SPHEREx Instrument: Calibration, testing and performance measurements of the NIR 2 spectroscopic surveyor from the laboratory to in-orbit commissioning |
| topic | Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2603.29835 |