List of metadata fields

The following metadata fields are defined on still images

stackedFrames -- The number of video frames which have been stacked together to form this image

inputNoiseLevel -- An estimate of the thermal noise on the input video stream, as it was received at 25fps. This is the standard deviation of each pixel from its mean value.

stackNoiseLevel -- An estimate of the thermal noise in this stacked image. This equals inputNoiseLevel / sqrt(stackedFrames).

The following metadata fields are defined on moving objects

inputNoiseLevel -- An estimate of the thermal noise on the input video stream, as it was received at 25fps. This is the standard deviation of each pixel from its mean value.

pathBezier -- This is a JSON-encoded list of three points along the object's path, which may be used to define a Bezier curve. Each point takes the form of a list [x,y,intensity,utc]. Intensity is the integrated excess of all of the pixels in the object above their average values in a single video frame. UTC is a Unix time, specified to the nearest ms.

duration -- The time interval (seconds) between the first and last sightings of the object.

detectionCount -- The number of frames in which the object was clearly detected.

amplitudeTimeIntegrated -- The integrated excess of all the pixels in the object above their average values during the whole duration of the object.

amplitudePeak -- The integrated excess of all the pixels in the object above their average values in the frame where the object is brightest.

sunRA - The right ascension of the Sun (degs; J2000 coordinates).

sunDec - The declination of the Sun (degs; J2000 coordinates).

sunAlt - The altitude of the Sun above the horizon (degs; usually negative).

sunAz - The azimuth of the Sun (degrees east of north).

skyClarity - An estimate of the fraction of the sky which is clear (0-100).