Credit: Millennium Space Systems
", "items": [ { "id": 469731, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154684, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_01.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_01.jpg", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft is connected to the payload attach fitting (PAF) inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 2400, "height": 3200, "pixels": 7680000 } } ], "extra_data": {} }, { "id": 377968, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377968", "widget": "Single image", "title": "", "caption": "", "description": "Photo: One of the TRACERS spacecraft is fitted with lift support equipment inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469732, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154685, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_02.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_02.jpg", "media_type": "Image", "alt_text": "Photo: One of the TRACERS spacecraft is fitted with lift support equipment inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 2400, "height": 3200, "pixels": 7680000 } } ], "extra_data": {} }, { "id": 377969, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377969", "widget": "Single image", "title": "", "caption": "", "description": "Photo: One of the TRACERS spacecraft is fitted with lift support equipment inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469733, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154686, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_03.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_03.jpg", "media_type": "Image", "alt_text": "Photo: One of the TRACERS spacecraft is fitted with lift support equipment inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 4798, "height": 3200, "pixels": 15353600 } } ], "extra_data": {} }, { "id": 377970, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377970", "widget": "Single image", "title": "", "caption": "", "description": "Photo: One of the TRACERS spacecraft is fitted with lift support equipment inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469734, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154687, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_04.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_04.jpg", "media_type": "Image", "alt_text": "Photo: One of the TRACERS spacecraft is fitted with lift support equipment inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 4798, "height": 3200, "pixels": 15353600 } } ], "extra_data": {} }, { "id": 377971, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377971", "widget": "Single image", "title": "", "caption": "", "description": "Photo: One of two TRACERS spacecraft completes spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA. The testing will ensure the spacecraft is balanced for flight.
Credit: Millennium Space Systems
", "items": [ { "id": 469735, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154688, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_05.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_05.jpg", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft completes spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA. The testing will ensure the spacecraft is balanced for flight.Credit: Millennium Space Systems", "width": 3000, "height": 2001, "pixels": 6003000 } } ], "extra_data": {} }, { "id": 377972, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377972", "widget": "Single image", "title": "", "caption": "", "description": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469736, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154689, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_06.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_06.jpg", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA. Credit: Millennium Space Systems", "width": 3840, "height": 2561, "pixels": 9834240 } }, { "id": 469745, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154698, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_06_print.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_06_print.jpg", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA. Credit: Millennium Space Systems", "width": 1024, "height": 682, "pixels": 698368 } }, { "id": 469746, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154699, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_06_searchweb.png", "filename": "14828_TRACERSMillenniumSpaceSystems_06_searchweb.png", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA. Credit: Millennium Space Systems", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 469747, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154700, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_06_web.png", "filename": "14828_TRACERSMillenniumSpaceSystems_06_web.png", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA. Credit: Millennium Space Systems", "width": 320, "height": 213, "pixels": 68160 } }, { "id": 469748, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154701, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_06_thm.png", "filename": "14828_TRACERSMillenniumSpaceSystems_06_thm.png", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA. Credit: Millennium Space Systems", "width": 80, "height": 40, "pixels": 3200 } } ], "extra_data": {} }, { "id": 377973, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377973", "widget": "Single image", "title": "", "caption": "", "description": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469737, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154690, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_07.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_07.jpg", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 3840, "height": 2561, "pixels": 9834240 } } ], "extra_data": {} }, { "id": 377974, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377974", "widget": "Single image", "title": "", "caption": "", "description": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469738, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154691, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_08.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_08.jpg", "media_type": "Image", "alt_text": "Photo: One of two TRACERS spacecraft is prepared for spin testing inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 3840, "height": 2561, "pixels": 9834240 } } ], "extra_data": {} }, { "id": 377975, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377975", "widget": "Single image", "title": "", "caption": "", "description": "Photo: In a clean room, the two TRACERS spacecraft sit side by side awaiting the addition of solar arrays at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469739, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154692, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_09.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_09.jpg", "media_type": "Image", "alt_text": "Photo: In a clean room, the two TRACERS spacecraft sit side by side awaiting the addition of solar arrays at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 5000, "height": 3335, "pixels": 16675000 } } ], "extra_data": {} }, { "id": 377976, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377976", "widget": "Single image", "title": "", "caption": "", "description": "Photo: The TRACERS spacecraft are prepared to be shipped to a new location where spin testing will take place at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469740, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154693, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_10.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_10.jpg", "media_type": "Image", "alt_text": "Photo: The TRACERS spacecraft are prepared to be shipped to a new location where spin testing will take place at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 3000, "height": 2001, "pixels": 6003000 } } ], "extra_data": {} }, { "id": 377977, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377977", "widget": "Single image", "title": "", "caption": "", "description": "Photo: The TRACERS spacecraft are prepared to be shipped to a new location where spin testing will take place at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469741, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154694, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_11.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_11.jpg", "media_type": "Image", "alt_text": "Photo: The TRACERS spacecraft are prepared to be shipped to a new location where spin testing will take place at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 3000, "height": 2001, "pixels": 6003000 } } ], "extra_data": {} }, { "id": 377978, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377978", "widget": "Single image", "title": "", "caption": "", "description": "Photo: The final internal payload is integrated to the spacecraft bus assembly inside a clean room at Millennium Space Systems HQ in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469742, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154695, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_12.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_12.jpg", "media_type": "Image", "alt_text": "Photo: The final internal payload is integrated to the spacecraft bus assembly inside a clean room at Millennium Space Systems HQ in El Segundo, CA.Credit: Millennium Space Systems", "width": 3000, "height": 2001, "pixels": 6003000 } } ], "extra_data": {} }, { "id": 377979, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377979", "widget": "Single image", "title": "", "caption": "", "description": "Photo: The final internal payload is integrated to the spacecraft bus assembly inside a clean room at Millennium Space Systems HQ in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469743, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154696, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_13.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_13.jpg", "media_type": "Image", "alt_text": "Photo: The final internal payload is integrated to the spacecraft bus assembly inside a clean room at Millennium Space Systems HQ in El Segundo, CA.Credit: Millennium Space Systems", "width": 3000, "height": 2001, "pixels": 6003000 } } ], "extra_data": {} }, { "id": 377980, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377980", "widget": "Single image", "title": "", "caption": "", "description": "Photo: The team working on TRACERS poses for a photo inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.
Credit: Millennium Space Systems
", "items": [ { "id": 469744, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1154697, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014828/14828_TRACERSMillenniumSpaceSystems_14.jpg", "filename": "14828_TRACERSMillenniumSpaceSystems_14.jpg", "media_type": "Image", "alt_text": "Photo: The team working on TRACERS poses for a photo inside a clean room at Millennium Space Systems Small Satellite Factory in El Segundo, CA.Credit: Millennium Space Systems", "width": 3000, "height": 3000, "pixels": 9000000 } } ], "extra_data": {} }, { "id": 377966, "url": "https://svs.gsfc.nasa.gov/14828/#media_group_377966", "widget": "Basic text", "title": "For More Information", "caption": "", "description": "See [NASA.gov](https://science.nasa.gov/mission/tracers/)", "items": [], "extra_data": {} } ], "studio": "gms", "funding_sources": [ "PAO" ], "credits": [ { "role": "Producer", "people": [ { "name": "Lacey Young", "employer": "eMITS" } ] } ], "missions": [], "series": [], "tapes": [], "papers": [], "datasets": [], "nasa_science_categories": [ "Sun" ], "keywords": [ "Heliophysics", "magnetic field", "Magnetic Fields", "Magnetic Reconnection", "Magnetosphere", "Plasma", "Polar Cusp", "Satellite", "Solar Storm", "Solar Wind", "Space Weather", "Spacecraft", "Sun", "TRACERS" ], "recommended_pages": [], "related": [ { "id": 20404, "url": "https://svs.gsfc.nasa.gov/20404/", "page_type": "Animation", "title": "TRACERS Science Animations", "description": "The TRACERS, or the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, mission will help scientists understand an explosive process called magnetic reconnection and its effects in Earth’s atmosphere. Magnetic reconnection occurs when magnetic fields and particles from the Sun interact with Earth’s magnetic field. By understanding this process, scientists will be able to better understand and prepare for impacts of solar activity on Earth, such as auroras and disruptions to telecommunications.Learn more about the mission: https://science.nasa.gov/mission/tracers/ || ", "release_date": "2025-06-02T12:00:00-04:00", "update_date": "2025-07-02T13:53:16.455608-04:00", "main_image": { "id": 1155490, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020400/a020404/TRACERS_S3_A_30fps_4k_proRes.00790_print.jpg", "filename": "TRACERS_S3_A_30fps_4k_proRes.00790_print.jpg", "media_type": "Image", "alt_text": "In this animation, the TRACERS spacecraft fly by the camera and enter the polar cusp, where the two spacecraft will make more than 3,000 measurements of dayside magnetic reconnection in the first year of the mission. Orange particles and shading represent an artistic rendering of what flying through the polar cusp would look like if the region was visible to the naked eye.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 14829, "url": "https://svs.gsfc.nasa.gov/14829/", "page_type": "Produced Video", "title": "TRACERS Thermal Vacuum Testing at Millennium Space Systems", "description": "NASA’s Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, or TRACERS, is embarking on its integration and testing campaign, during which all of the instruments and components will be added to the spacecraft structure, tested to ensure they will survive the harsh environments of launch and space, and made ready to execute its mission. The TRACERS mission will help scientists understand an explosive process called magnetic reconnection and its effects in Earth’s atmosphere. Magnetic reconnection occurs when magnetic fields and particles from the Sun interact with Earth’s magnetic field. By understanding this process, scientists will be able to better understand and prepare for impacts of solar activity on Earth, such as auroras and disruptions to telecommunications.Below are clips of Millennium Space Systems’ team members conducting Thermal Vacuum (TVAC) testing at the Boeing Space Systems Laboratory in El Segundo, California.Learn more about the mission: https://science.nasa.gov/mission/tracers/ || ", "release_date": "2025-04-25T10:00:00-04:00", "update_date": "2025-06-02T12:39:50.809899-04:00", "main_image": { "id": 1154712, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014829/14829_TRACERS_TVAC_06_print.jpg", "filename": "14829_TRACERS_TVAC_06_print.jpg", "media_type": "Image", "alt_text": "Photo: Millennium Space Systems team members prepare the TRACERS spacecraft for Thermal Vacuum (TVAC) testing at Boeing Space Systems Laboratory in El Segundo, CA. The testing will ensure it can withstand the harsh conditions of space.Credit: Millennium Space Systems", "width": 1024, "height": 682, "pixels": 698368 } }, { "id": 14827, "url": "https://svs.gsfc.nasa.gov/14827/", "page_type": "Produced Video", "title": "TRACERS Instrument Development & Testing at the University of Iowa", "description": "NASA’s Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, or TRACERS, is embarking on its integration and testing campaign, during which all of the instruments and components will be added to the spacecraft structure, tested to ensure they will survive the harsh environments of launch and space, and made ready to execute its mission. The TRACERS mission will help scientists understand an explosive process called magnetic reconnection and its effects in Earth’s atmosphere. Magnetic reconnection occurs when magnetic fields and particles from the Sun interact with Earth’s magnetic field. By understanding this process, scientists will be able to better understand and prepare for impacts of solar activity on Earth, such as auroras and disruptions to telecommunications.Below are clips of TRACERS’ instrument design, build, and testing at the University of Iowa in Iowa City, Iowa.Learn more about the mission: https://science.nasa.gov/mission/tracers/ || ", "release_date": "2025-04-24T15:00:00-04:00", "update_date": "2025-04-23T09:54:44.701882-04:00", "main_image": { "id": 1154631, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014827/14827_TRACERSUIowa_12_print.jpg", "filename": "14827_TRACERSUIowa_12_print.jpg", "media_type": "Image", "alt_text": "Photo: Andrew Carton, TRACERS aerospace engineer, conducts final tests on the TRACERS instruments while they’re bolted onto the mock spacecraft “Flat Sat” in a clean room at Van Allen Hall at the University of Iowa, before the instrument suite was packed and shipped to Millennium Space Systems in California.Credit: University of Iowa / Tim Schoon", "width": 1024, "height": 682, "pixels": 698368 } }, { "id": 14805, "url": "https://svs.gsfc.nasa.gov/14805/", "page_type": "Animation", "title": "TRACERS Spacecraft Beauty Passes", "description": "The TRACERS, or the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, mission will help scientists understand an explosive process called magnetic reconnection and its effects in Earth’s atmosphere. Magnetic reconnection occurs when magnetic fields and particles from the Sun interact with Earth’s magnetic field. By understanding this process, scientists will be able to better understand and prepare for impacts of solar activity on Earth, such as auroras and disruptions to telecommunications.Learn more about the mission: https://science.nasa.gov/mission/tracers/ || ", "release_date": "2025-03-24T12:00:00-04:00", "update_date": "2025-06-03T12:24:37-04:00", "main_image": { "id": 1154340, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014805/TRACERSbeauty_Iowa_4K_ProRes.00001_print.jpg", "filename": "TRACERSbeauty_Iowa_4K_ProRes.00001_print.jpg", "media_type": "Image", "alt_text": "Beauty Pass – 4KCredit: University of Iowa / Andy Kale", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }