{
"id": 1388,
"url": "https://svs.gsfc.nasa.gov/1388/",
"page_type": "Visualization",
"title": "Motion in the R-Aquarii Jet 1991, 1992, 1993: 2-D Motion",
"description": "Images from the Hubble Space Telescope's Faint Object Camera from 1991, 1992, and 1993 demonstrate motion in the R Aquarii emission jet. Since images from this period were still affected by the primary mirror flaw, the images were restored to the original design resolution using the maximum entropy method. || ",
"release_date": "1995-06-04T12:00:00-04:00",
"update_date": "2023-05-03T14:00:15.471631-04:00",
"main_image": {
"id": 550515,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1_pre.jpg",
"filename": "a001388_1_pre.jpg",
"media_type": "Image",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 320,
"height": 238,
"pixels": 76160
},
"main_video": {
"id": 550520,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1.webmhd.webm",
"filename": "a001388_1.webmhd.webm",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 960,
"height": 540,
"pixels": 518400
},
"main_credits": {
"Visualizations by": [
{
"name": "Shahram Shiri",
"employer": "NASA"
}
]
},
"progress": "Complete",
"media_groups": [
{
"id": 369956,
"url": "https://svs.gsfc.nasa.gov/1388/#media_group_369956",
"widget": "Basic text with HTML",
"title": "",
"caption": "",
"description": "Images from the Hubble Space Telescope's Faint Object Camera from 1991, 1992, and 1993 demonstrate motion in the R Aquarii emission jet. Since images from this period were still affected by the primary mirror flaw, the images were restored to the original design resolution using the maximum entropy method.",
"items": [],
"extra_data": {}
},
{
"id": 369957,
"url": "https://svs.gsfc.nasa.gov/1388/#media_group_369957",
"widget": "Video player",
"title": "",
"caption": "",
"description": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"items": [
{
"id": 395741,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550519,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/preview_made_from_dv.00080_print.png",
"filename": "preview_made_from_dv.00080_print.png",
"media_type": "Image",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 640,
"height": 480,
"pixels": 307200
}
},
{
"id": 395735,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550514,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1_thm.png",
"filename": "a001388_1_thm.png",
"media_type": "Image",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 80,
"height": 40,
"pixels": 3200
}
},
{
"id": 395736,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550515,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1_pre.jpg",
"filename": "a001388_1_pre.jpg",
"media_type": "Image",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 320,
"height": 238,
"pixels": 76160
}
},
{
"id": 395740,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550518,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1_pre_searchweb.jpg",
"filename": "a001388_1_pre_searchweb.jpg",
"media_type": "Image",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 320,
"height": 180,
"pixels": 57600
}
},
{
"id": 395739,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550520,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1.webmhd.webm",
"filename": "a001388_1.webmhd.webm",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 960,
"height": 540,
"pixels": 518400
}
},
{
"id": 395737,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550516,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1.mp4",
"filename": "a001388_1.mp4",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 640,
"height": 480,
"pixels": 307200
}
},
{
"id": 395738,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550517,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1.dv",
"filename": "a001388_1.dv",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 720,
"height": 480,
"pixels": 345600
}
},
{
"id": 395734,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550513,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1.mpg",
"filename": "a001388_1.mpg",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with convolutional constraint was used to deconvolve the Hubble images",
"width": 352,
"height": 240,
"pixels": 84480
}
}
],
"extra_data": {}
},
{
"id": 369958,
"url": "https://svs.gsfc.nasa.gov/1388/#media_group_369958",
"widget": "Single image",
"title": "",
"caption": "",
"description": "Video slate image reads \"Motion R-Aquarii Jet Features
2-D blinking of 1991, 1992, and 1993 data
First Example:
Maximum Entropy Method with convolution constraint\".",
"items": [
{
"id": 395742,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550521,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1_slate.jpg",
"filename": "a001388_1_slate.jpg",
"media_type": "Image",
"alt_text": "Video slate image reads \"Motion R-Aquarii Jet Features2-D blinking of 1991, 1992, and 1993 dataFirst Example:Maximum Entropy Method with convolution constraint\".",
"width": 720,
"height": 528,
"pixels": 380160
}
},
{
"id": 395743,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550522,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_1_slate_web.png",
"filename": "a001388_1_slate_web.png",
"media_type": "Image",
"alt_text": "Video slate image reads \"Motion R-Aquarii Jet Features2-D blinking of 1991, 1992, and 1993 dataFirst Example:Maximum Entropy Method with convolution constraint\".",
"width": 320,
"height": 234,
"pixels": 74880
}
}
],
"extra_data": {}
},
{
"id": 369959,
"url": "https://svs.gsfc.nasa.gov/1388/#media_group_369959",
"widget": "Video player",
"title": "",
"caption": "",
"description": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with maximum likelihood estimator constraint was used to deconvolve the Hubble images",
"items": [
{
"id": 395750,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550528,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2.00005_print.png",
"filename": "a001388_2.00005_print.png",
"media_type": "Image",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with maximum likelihood estimator constraint was used to deconvolve the Hubble images",
"width": 720,
"height": 480,
"pixels": 345600
}
},
{
"id": 395744,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550525,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2_pre.jpg",
"filename": "a001388_2_pre.jpg",
"media_type": "Image",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with maximum likelihood estimator constraint was used to deconvolve the Hubble images",
"width": 320,
"height": 238,
"pixels": 76160
}
},
{
"id": 395748,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550524,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2_thm.png",
"filename": "a001388_2_thm.png",
"media_type": "Image",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with maximum likelihood estimator constraint was used to deconvolve the Hubble images",
"width": 80,
"height": 40,
"pixels": 3200
}
},
{
"id": 395749,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550529,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2.webmhd.webm",
"filename": "a001388_2.webmhd.webm",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with maximum likelihood estimator constraint was used to deconvolve the Hubble images",
"width": 960,
"height": 540,
"pixels": 518400
}
},
{
"id": 395745,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550526,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2.dv",
"filename": "a001388_2.dv",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with maximum likelihood estimator constraint was used to deconvolve the Hubble images",
"width": 720,
"height": 480,
"pixels": 345600
}
},
{
"id": 395747,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550527,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2.mp4",
"filename": "a001388_2.mp4",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with maximum likelihood estimator constraint was used to deconvolve the Hubble images",
"width": 640,
"height": 480,
"pixels": 307200
}
},
{
"id": 395746,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550523,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2.mpg",
"filename": "a001388_2.mpg",
"media_type": "Movie",
"alt_text": "Motion of the R Aquarii jet from 1991 to 1993, where the maximum entropy method with maximum likelihood estimator constraint was used to deconvolve the Hubble images",
"width": 352,
"height": 240,
"pixels": 84480
}
}
],
"extra_data": {}
},
{
"id": 369960,
"url": "https://svs.gsfc.nasa.gov/1388/#media_group_369960",
"widget": "Single image",
"title": "",
"caption": "",
"description": "Video slate image reads \"Motion R-Aquarii Jet Features
2-D blinking of 1991, 1992, and 1993 data
Second example: maximum entropy method with maximum likelihood estimator constraint\".",
"items": [
{
"id": 395751,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550530,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2_slate.jpg",
"filename": "a001388_2_slate.jpg",
"media_type": "Image",
"alt_text": "Video slate image reads \"Motion R-Aquarii Jet Features2-D blinking of 1991, 1992, and 1993 data Second example: maximum entropy method with maximum likelihood estimator constraint\".",
"width": 720,
"height": 528,
"pixels": 380160
}
},
{
"id": 395752,
"type": "media",
"extra_data": null,
"title": null,
"caption": null,
"instance": {
"id": 550531,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a001300/a001388/a001388_2_slate_web.png",
"filename": "a001388_2_slate_web.png",
"media_type": "Image",
"alt_text": "Video slate image reads \"Motion R-Aquarii Jet Features2-D blinking of 1991, 1992, and 1993 data Second example: maximum entropy method with maximum likelihood estimator constraint\".",
"width": 320,
"height": 234,
"pixels": 74880
}
}
],
"extra_data": {}
}
],
"studio": "svs",
"funding_sources": [
"ESE"
],
"credits": [
{
"role": "Animator",
"people": [
{
"name": "Shahram Shiri",
"employer": "NASA"
},
{
"name": "Pamela ONeil",
"employer": "NASA"
}
]
},
{
"role": "Scientist",
"people": [
{
"name": "J. Michael Hollis",
"employer": "NASA/GSFC"
},
{
"name": "Richard Lyon",
"employer": "NASA/GSFC"
},
{
"name": "John E. Dorband",
"employer": "NASA/GSFC"
},
{
"name": "W. A. Feibelman",
"employer": "NASA/GSFC"
}
]
}
],
"missions": [],
"series": [
"Astrophysics Visualizations",
"R-Aquarii"
],
"tapes": [],
"papers": [
"J. M. Hollis, R. G. Lyon, J. E. Dorband, W. A. Feibelman, Motion of the Ultraviolet R Aquarii Jet, ApJ, 475, 231-236.",
"J. M. Hollis, R. G. Lyon, J. E. Dorband, W. A. Feibelman, Motion of the Ultraviolet R Aquarii Jet, ApJ, 475, 231-236."
],
"datasets": [
{
"name": "",
"common_name": "",
"platform": "HST",
"sensor": "FOC",
"type": "Other",
"organizations": [],
"description": "",
"credit": "",
"url": "",
"date_range": "1991/10/21, 1992/12/01, 1993/10/17"
},
{
"name": "",
"common_name": "",
"platform": "HST",
"sensor": "WFPC2",
"type": "Other",
"organizations": [],
"description": "Wide-Field Planetary Camera 2 (WFPC2) was installed in Dec 1993 and used to obtain high resolution images of astronomical objects. This camera was removed in the last servicing mission so it is no longer in service.",
"credit": "",
"url": "http://www.stsci.edu/hst/wfpc2/wfpc2_diag.html",
"date_range": null
}
],
"nasa_science_categories": [
"Universe"
],
"keywords": [
"Astrophysics",
"R-Aquarii",
"Space science",
"Technology"
],
"recommended_pages": [],
"related": [],
"sources": [],
"products": [],
"newer_versions": [],
"older_versions": [],
"alternate_versions": []
}