... | @@ -15,6 +15,7 @@ PRISMA nodes are operated by an open-source software named [FreeTure](https://gi |
... | @@ -15,6 +15,7 @@ PRISMA nodes are operated by an open-source software named [FreeTure](https://gi |
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The camera acquires a 30 fps video stream that is triggered in livetime by FreeTure looking for meteors in the field of view (FoV).
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The camera acquires a 30 fps video stream that is triggered in livetime by FreeTure looking for meteors in the field of view (FoV).
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PRISMA data are divided into two categories: **captures** (calibration data) and **events** (meteor data).
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PRISMA data are divided into two categories: **captures** (calibration data) and **events** (meteor data).
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The structure of these data is detailed in the [Workspace](Workspace) page.
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## Events
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## Events
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Once FreeTure triggers a meteor, a video of few hundred of frames is saved in FITS format.
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Once FreeTure triggers a meteor, a video of few hundred of frames is saved in FITS format.
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... | @@ -31,8 +32,6 @@ Inside the event, each detection is named by adding the station NAME before the |
... | @@ -31,8 +32,6 @@ Inside the event, each detection is named by adding the station NAME before the |
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Be aware that the date reported in the detection name might slightly differ (± 5 s) from the event date.
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Be aware that the date reported in the detection name might slightly differ (± 5 s) from the event date.
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This is due to the fact that each station may trigger the same meteor from a different starting time, or nodes may be not perfectly synchronized in time.
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This is due to the fact that each station may trigger the same meteor from a different starting time, or nodes may be not perfectly synchronized in time.
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The folder structure of events is detailed in the [Workspace](Workspace) page.
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## Captures
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## Captures
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For calibration purposes (both astrometric and photometric) of each station, the 30 fps stream is paused each 10 minutes to acquire a long-exposure image (5 seconds) named **capture**, also saved as a FITS file by FreeTure.
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For calibration purposes (both astrometric and photometric) of each station, the 30 fps stream is paused each 10 minutes to acquire a long-exposure image (5 seconds) named **capture**, also saved as a FITS file by FreeTure.
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Captures are calibration images which allow detecting stars down to +4/+5 mag (depending on the light pollution of the site).
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Captures are calibration images which allow detecting stars down to +4/+5 mag (depending on the light pollution of the site).
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... | @@ -42,5 +41,3 @@ This is a continuous dataflow from each station, and accounts in reality for mos |
... | @@ -42,5 +41,3 @@ This is a continuous dataflow from each station, and accounts in reality for mos |
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Each capture is named after the station code and the acquisition date-time, in the following convention:
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Each capture is named after the station code and the acquisition date-time, in the following convention:
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`CODE_YYYYMMDDTHHMMSS_UT-0.fit` (e.g., ITPI01_20180100T001054_UT-0.fit) |
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`CODE_YYYYMMDDTHHMMSS_UT-0.fit` (e.g., ITPI01_20180100T001054_UT-0.fit) |
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\ No newline at end of file |
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The folder structure of captures is detailed in the [Workspace](Workspace) page. |
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\ No newline at end of file |
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