The DAPS is only capable of moving in the weightless environment on orbit, not in Earth’s gravity on the ground. DAPS therefore was tested on a platform structure with wheels and bearings.
The test includes motions responsible for tracking and slewing between neutron star targets in the sky with NICER's X-ray Timing Instrument, which is stationary during this test because it is too heavy to be moved by the DAPS motors in Earth's gravity.
", "items": [], "extra_data": {} }, { "id": 334318, "url": "https://svs.gsfc.nasa.gov/12529/#media_group_334318", "widget": "Video player", "title": "", "caption": "", "description": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "items": [ { "id": 270707, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425185, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion.00001_print.jpg", "filename": "NICERRangeofMotion.00001_print.jpg", "media_type": "Image", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 270711, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425186, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion_print.jpg", "filename": "NICERRangeofMotion_print.jpg", "media_type": "Image", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 1024, "height": 682, "pixels": 698368 } }, { "id": 270708, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425188, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion.00001_searchweb.png", "filename": "NICERRangeofMotion.00001_searchweb.png", "media_type": "Image", "alt_text": "Time-lapse of the Neutron star Interior Composition Explorer (NICER) range of motion test was taken on April 11, 2016, at NASA's Goddard Space Flight Center in Greenbelt, Maryland.", "width": 180, "height": 320, "pixels": 57600 } }, { "id": 270709, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425189, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion.00001_web.png", "filename": "NICERRangeofMotion.00001_web.png", "media_type": "Image", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 270710, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425187, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion.00001_thm.png", "filename": "NICERRangeofMotion.00001_thm.png", "media_type": "Image", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 80, "height": 40, "pixels": 3200 } }, { "id": 270712, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425190, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion_searchweb.png", "filename": "NICERRangeofMotion_searchweb.png", "media_type": "Image", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 270713, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425191, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion_web.png", "filename": "NICERRangeofMotion_web.png", "media_type": "Image", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 320, "height": 213, "pixels": 68160 } }, { "id": 270714, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425192, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion_thm.png", "filename": "NICERRangeofMotion_thm.png", "media_type": "Image", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 80, "height": 40, "pixels": 3200 } }, { "id": 270705, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425183, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion.mov", "filename": "NICERRangeofMotion.mov", "media_type": "Movie", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 270706, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425184, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion.mp4", "filename": "NICERRangeofMotion.mp4", "media_type": "Movie", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 270715, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 425193, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/NICERRangeofMotion.webm", "filename": "NICERRangeofMotion.webm", "media_type": "Movie", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 270716, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 852447, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012529/GSFC_20160411_NICER_m12529_RangeofMotion.en_US.vtt", "filename": "GSFC_20160411_NICER_m12529_RangeofMotion.en_US.vtt", "media_type": "Captions", "alt_text": "Time-lapse of the NICER range of motion test on April 11, 2016, at NASA's Goddard Space Flight Center. ", "label": "English", "language_code": "" } } ], "extra_data": {} }, { "id": 334319, "url": "https://svs.gsfc.nasa.gov/12529/#media_group_334319", "widget": "Basic text", "title": "For More Information", "caption": "", "description": "See the following sources:\n\n* [https://www.nasa.gov/nicer](https://www.nasa.gov/nicer)\n* [http://heasarc.gsfc.nasa.gov/docs/nicer/](http://heasarc.gsfc.nasa.gov/docs/nicer/)", "items": [], "extra_data": {} } ], "studio": "gms", "funding_sources": [ "PAO" ], "credits": [ { "role": "Videographer", "people": [ { "name": "Rich Melnick", "employer": "KBR Wyle Services, LLC" } ] }, { "role": "Producer", "people": [ { "name": "Rich Melnick", "employer": "KBR Wyle Services, LLC" } ] } ], "missions": [ "Neutron star Interior Composition Explorer (NICER)" ], "series": [], "tapes": [], "papers": [], "datasets": [], "nasa_science_categories": [ "Universe" ], "keywords": [ "HDTV", "NICER", "Technology", "Testing" ], "recommended_pages": [], "related": [ { "id": 12530, "url": "https://svs.gsfc.nasa.gov/12530/", "page_type": "B-Roll", "title": "NICER Mission B-roll Footage", "description": "The Neutron star Interior Composition Explorer (NICER) mission was built and tested at NASA's Goddard Space Flight Center in Greenbelt, Maryland.In addition to NASA Goddard scientists and engineers, the mission team includes the Massachusetts Institute of Technology and commercial partners, who provided spaceflight hardware. || ", "release_date": "2017-03-10T00:00:00-05:00", "update_date": "2023-05-03T13:47:52.033581-04:00", "main_image": { "id": 415827, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012530/NICER_payload_KSC_print.jpg", "filename": "NICER_payload_KSC_print.jpg", "media_type": "Image", "alt_text": "The NICER payload, ready for flight, on a dolly in a clean-tent at the Space Station Processing Facility at NASA's Kennedy Space Center. The payload, delivered two weeks ahead of schedule, undergoes monthly functional tests while it awaits launch on the 11th SpaceX commercial resupply mission (CRS-11) to the International Space Station.Credit: NASA Goddard/Keith Gendreau", "width": 1024, "height": 1220, "pixels": 1249280 } }, { "id": 12455, "url": "https://svs.gsfc.nasa.gov/12455/", "page_type": "Produced Video", "title": "NICER Electromagnetic Testing Time-lapse Videos", "description": "The Neutron star Interior Composition Explorer (NICER) payload undergoes electromagnetic testing at NASA's Goddard Space Flight Center in Greenbelt, Maryland.Electromagnetic testing serves to verify that NICER’s electrical subsystems do not interfere with each other or with International Space Station electrical systems through, for example, conducted or transmitted emissions. This test also verifies that NICER is not susceptible to malfunction due to the electromagnetic environment of the space station.Two time-lapse videos show the NICER payload deploy during electromagnetic testing and return to its stowed configuration following the tests. || ", "release_date": "2016-02-03T00:00:00-05:00", "update_date": "2023-05-03T13:48:56.442788-04:00", "main_image": { "id": 427163, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012400/a012455/NICERWalkoutFull.00001_print.jpg", "filename": "NICERWalkoutFull.00001_print.jpg", "media_type": "Image", "alt_text": "Time-lapse of the NICER payload's first deployment, using a gravity-mitigation system, during electromagnetic testing on Dec. 30, 2015, at NASA's Goddard Space Flight Center. ", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 12528, "url": "https://svs.gsfc.nasa.gov/12528/", "page_type": "Produced Video", "title": "NICER Lift Time-lapse", "description": "The Neutron star Interior Composition Explorer (NICER) box-shaped X-ray Timing Instrument (XTI) is lifted and integrated at NASA's Goddard Space Flight Center in Greenbelt, Maryland.The time-lapse shows the XTI, with attached flight electronics and the payload's pointing system, being lifted and joined to the flight Adapter Plate, NICER's connection to the International Space Station-provided hardware for installation on station. || ", "release_date": "2015-12-23T00:00:00-05:00", "update_date": "2023-05-03T13:49:00.974023-04:00", "main_image": { "id": 415822, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012528/NICERLiftforIntegrationFull.00001_print.jpg", "filename": "NICERLiftforIntegrationFull.00001_print.jpg", "media_type": "Image", "alt_text": "This time-lapse video of NICER's X-ray Timing Instrument (XTI) being lifted and integrated was taken on Dec. 23, 2015, in a clean-tent at NASA's Goddard Space Flight Center.", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }