Demonstrating High-precision Photometry with a CubeSat: ASTERIA Observations of 55 Cancri e
© 2020. The American Astronomical Society. All rights reserved Arcsecond Space Telescope Enabling Research In Astrophysics (ASTERIA) is a 6U CubeSat space telescope (10 cm 20 cm 30 cm, 10 kg). ASTERIA's primary mission objective was demonstrating two key technologies for reducing systematic noi...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Astronomical Society
2021
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| Online Access: | https://hdl.handle.net/1721.1/134318 |
| _version_ | 1826194611144491008 |
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| author | Knapp, Mary Seager, Sara Demory, Brice-Olivier Krishnamurthy, Akshata Smith, Matthew W Pong, Christopher M Bailey, Vanessa P Donner, Amanda Pasquale, Peter Di Campuzano, Brian Smith, Colin Luu, Jason Babuscia, Alessandra Loveland, Jessica Colley, Cody Gedenk, Tobias Kulkarni, Tejas Hughes, Kyle White, Mary Krajewski, Joel Fesq, Lorraine Bocchino, Robert L, Jr. |
| author2 | Haystack Observatory |
| author_facet | Haystack Observatory Knapp, Mary Seager, Sara Demory, Brice-Olivier Krishnamurthy, Akshata Smith, Matthew W Pong, Christopher M Bailey, Vanessa P Donner, Amanda Pasquale, Peter Di Campuzano, Brian Smith, Colin Luu, Jason Babuscia, Alessandra Loveland, Jessica Colley, Cody Gedenk, Tobias Kulkarni, Tejas Hughes, Kyle White, Mary Krajewski, Joel Fesq, Lorraine Bocchino, Robert L, Jr. |
| author_sort | Knapp, Mary |
| collection | MIT |
| description | © 2020. The American Astronomical Society. All rights reserved Arcsecond Space Telescope Enabling Research In Astrophysics (ASTERIA) is a 6U CubeSat space telescope (10 cm 20 cm 30 cm, 10 kg). ASTERIA's primary mission objective was demonstrating two key technologies for reducing systematic noise in photometric observations: high-precision pointing control and high-stability thermal control. ASTERIA demonstrated 0.″5 rms pointing stability and 10 mK thermal control of its camera payload during its primary mission, a significant improvement in pointing and thermal performance compared to other spacecraft in ASTERIA's size and mass class. ASTERIA launched in 2017 August and deployed from the International Space Station in 2017 November. During the prime mission (2017 November-2018 February) and the first extended mission that followed (2018 March-2018 May), ASTERIA conducted opportunistic science observations, which included the collection of photometric data on 55 Cancri, a nearby exoplanetary system with a super-Earth transiting planet. The 55 Cancri data were reduced using a custom pipeline to correct complementary metal-oxide semiconductor (CMOS) detector column-dependent gain variations. A Markov Chain Monte Carlo approach was used to simultaneously detrend the photometry using a simple baseline model and fit a transit model. ASTERIA made a marginal detection of the known transiting exoplanet 55 Cancri e (∼2 R⊕), measuring a transit depth of 374 170 ppm. This is the first detection of an exoplanet transit by a CubeSat. The successful detection of super-Earth 55 Cancri e demonstrates that small, inexpensive spacecraft can deliver high-precision photometric measurements. |
| first_indexed | 2024-09-23T09:58:37Z |
| format | Article |
| id | mit-1721.1/134318 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:58:37Z |
| publishDate | 2021 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/1343182024-05-15T02:28:32Z Demonstrating High-precision Photometry with a CubeSat: ASTERIA Observations of 55 Cancri e Knapp, Mary Seager, Sara Demory, Brice-Olivier Krishnamurthy, Akshata Smith, Matthew W Pong, Christopher M Bailey, Vanessa P Donner, Amanda Pasquale, Peter Di Campuzano, Brian Smith, Colin Luu, Jason Babuscia, Alessandra Loveland, Jessica Colley, Cody Gedenk, Tobias Kulkarni, Tejas Hughes, Kyle White, Mary Krajewski, Joel Fesq, Lorraine Bocchino, Robert L, Jr. Haystack Observatory Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology. Department of Aeronautics and Astronautics © 2020. The American Astronomical Society. All rights reserved Arcsecond Space Telescope Enabling Research In Astrophysics (ASTERIA) is a 6U CubeSat space telescope (10 cm 20 cm 30 cm, 10 kg). ASTERIA's primary mission objective was demonstrating two key technologies for reducing systematic noise in photometric observations: high-precision pointing control and high-stability thermal control. ASTERIA demonstrated 0.″5 rms pointing stability and 10 mK thermal control of its camera payload during its primary mission, a significant improvement in pointing and thermal performance compared to other spacecraft in ASTERIA's size and mass class. ASTERIA launched in 2017 August and deployed from the International Space Station in 2017 November. During the prime mission (2017 November-2018 February) and the first extended mission that followed (2018 March-2018 May), ASTERIA conducted opportunistic science observations, which included the collection of photometric data on 55 Cancri, a nearby exoplanetary system with a super-Earth transiting planet. The 55 Cancri data were reduced using a custom pipeline to correct complementary metal-oxide semiconductor (CMOS) detector column-dependent gain variations. A Markov Chain Monte Carlo approach was used to simultaneously detrend the photometry using a simple baseline model and fit a transit model. ASTERIA made a marginal detection of the known transiting exoplanet 55 Cancri e (∼2 R⊕), measuring a transit depth of 374 170 ppm. This is the first detection of an exoplanet transit by a CubeSat. The successful detection of super-Earth 55 Cancri e demonstrates that small, inexpensive spacecraft can deliver high-precision photometric measurements. 2021-10-27T20:04:25Z 2021-10-27T20:04:25Z 2020 2021-09-29T18:01:30Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/134318 en 10.3847/1538-3881/AB8BCC Astronomical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Astronomical Society The American Astronomical Society |
| spellingShingle | Knapp, Mary Seager, Sara Demory, Brice-Olivier Krishnamurthy, Akshata Smith, Matthew W Pong, Christopher M Bailey, Vanessa P Donner, Amanda Pasquale, Peter Di Campuzano, Brian Smith, Colin Luu, Jason Babuscia, Alessandra Loveland, Jessica Colley, Cody Gedenk, Tobias Kulkarni, Tejas Hughes, Kyle White, Mary Krajewski, Joel Fesq, Lorraine Bocchino, Robert L, Jr. Demonstrating High-precision Photometry with a CubeSat: ASTERIA Observations of 55 Cancri e |
| title | Demonstrating High-precision Photometry with a CubeSat: ASTERIA Observations of 55 Cancri e |
| title_full | Demonstrating High-precision Photometry with a CubeSat: ASTERIA Observations of 55 Cancri e |
| title_fullStr | Demonstrating High-precision Photometry with a CubeSat: ASTERIA Observations of 55 Cancri e |
| title_full_unstemmed | Demonstrating High-precision Photometry with a CubeSat: ASTERIA Observations of 55 Cancri e |
| title_short | Demonstrating High-precision Photometry with a CubeSat: ASTERIA Observations of 55 Cancri e |
| title_sort | demonstrating high precision photometry with a cubesat asteria observations of 55 cancri e |
| url | https://hdl.handle.net/1721.1/134318 |
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