Plots Explained - Revision history

MetorsABQ9: /* Timestamp Intervals */

2026-02-09T22:13:02Z

Timestamp Intervals

← Older revision		Revision as of 17:13, 9 February 2026
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	This plot shows relative stability of frame recording throughout the course of the night.		This plot shows relative stability of frame recording throughout the course of the night.

	[[File: ~~Plots_TimestampIntervals~~.png \| frameless \| center \| upright=2.0 ]]		[[File: Plots_Timestamp_Intervals.png \| frameless \| center \| upright=2.0 ]]

	== Deaveraged field sums ==		== Deaveraged field sums ==

MetorsABQ9: /* Astrometry report */

2026-02-09T22:03:38Z

Astrometry report

← Older revision		Revision as of 17:03, 9 February 2026
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	If there is a systemic error, lines display either as concentrically oriented or deviated in a single direction. Ideally, you want to see a lot of short lines that are oriented in multiple directions.		If there is a systemic error, lines display either as concentrically oriented or deviated in a single direction. Ideally, you want to see a lot of short lines that are oriented in multiple directions.

	[[File: Plots_AstrometryReport.~~png~~ \| center ]]		[[File: Plots_AstrometryReport.jpg \| frameless \| center \| upright=2.0 ]]


	== Calibration variation ==		== Calibration variation ==

MetorsABQ9: /* Timestamp Intervals */

2026-02-09T21:59:06Z

Timestamp Intervals

← Older revision		Revision as of 16:59, 9 February 2026
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	This plot shows relative stability of frame recording throughout the course of the night.		This plot shows relative stability of frame recording throughout the course of the night.

	[[File: ~~PlotsTimestampIntervals~~.png \| frameless \| center \| upright=2.0 ]]		[[File: Plots_TimestampIntervals.png \| frameless \| center \| upright=2.0 ]]

	== Deaveraged field sums ==		== Deaveraged field sums ==

MetorsABQ9: /* Photometry report */

2026-02-09T21:53:54Z

Photometry report

← Older revision		Revision as of 16:53, 9 February 2026
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	To calculate the limiting magnitude of a camera, subtract about 4 magnitudes from the photometry fit. For most 3.6mm cameras, this number is 10 or a bit more because these cameras have a limiting magnitude of about 6.		To calculate the limiting magnitude of a camera, subtract about 4 magnitudes from the photometry fit. For most 3.6mm cameras, this number is 10 or a bit more because these cameras have a limiting magnitude of about 6.

	[[File: Plots_PhotometryReport.png \| center ]]		[[File: Plots_PhotometryReport.png \| frameless \| center \| upright=2.0 ]]


	== Photometric offset variation ==		== Photometric offset variation ==

MetorsABQ9: /* Calibration variation */

2026-02-09T21:53:27Z

Calibration variation

← Older revision		Revision as of 16:53, 9 February 2026
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	The results of a recheck are shown in this plot and the time from the first FF file is color-coded. The figure shows the difference between the refitted FOV and the reference FOV center in arcminutes, usually on the X-axis. It also shows the angle of rotation between the refitted FOV and the reference FOV.		The results of a recheck are shown in this plot and the time from the first FF file is color-coded. The figure shows the difference between the refitted FOV and the reference FOV center in arcminutes, usually on the X-axis. It also shows the angle of rotation between the refitted FOV and the reference FOV.

	[[File: Plots_CalibrationVariation.png \| center ]]		[[File: Plots_CalibrationVariation.png \| frameless \| center \| upright=2.0 ]]

	If you study this plot for your camera through the night, you may be able to identify and fix problems related to the camera mount. On average, cameras move 5 to 6 arcminutes overnight, but there are documented cases of minor movements of only 2' and much larger movements of 15' or more.		If you study this plot for your camera through the night, you may be able to identify and fix problems related to the camera mount. On average, cameras move 5 to 6 arcminutes overnight, but there are documented cases of minor movements of only 2' and much larger movements of 15' or more.


	== Photometry report ==		== Photometry report ==

MetorsABQ9: /* Timestamp Intervals */

2026-02-09T21:18:59Z

Timestamp Intervals

← Older revision		Revision as of 16:18, 9 February 2026
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	This plot shows relative stability of frame recording throughout the course of the night.		This plot shows relative stability of frame recording throughout the course of the night.

	[[File: ~~Plots_Timestamp_Intervals~~.png \| frameless \| center \| upright=2.0 ]]		[[File: PlotsTimestampIntervals.png \| frameless \| center \| upright=2.0 ]]


	== Deaveraged field sums ==		== Deaveraged field sums ==

MetorsABQ9: /* Flux total observing tim */

2026-02-09T16:22:00Z

Flux total observing tim

← Older revision		Revision as of 11:22, 9 February 2026
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	== Flux total observing ~~tim~~ ==		== Flux total observing time ==
	Graphic plot Matched vs. Predicted stars throughout the night.		Graphic plot Matched vs. Predicted stars throughout the night.

	[[File: Plots_Flux_total.png \| frameless \| center \| upright=2.0 ]]		[[File: Plots_Flux_total.png \| frameless \| center \| upright=2.0 ]]


	== Masked Flat ==		== Masked Flat ==

MetorsABQ9 at 22:14, 8 February 2026

2026-02-08T22:14:17Z

← Older revision		Revision as of 17:14, 8 February 2026
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	In spite of false event rejection filters some false positives may remain. Also note that if a plane or other false event occurs while a meteor is detected, both the meteor and the false detection will be captured in the same image. As a result, the note in the bottom right corner, Detected meteors, should be understood as an estimate. For stations with good astronomical viewing conditions, this number will be very close to the number of detected meteors.		In spite of false event rejection filters some false positives may remain. Also note that if a plane or other false event occurs while a meteor is detected, both the meteor and the false detection will be captured in the same image. As a result, the note in the bottom right corner, Detected meteors, should be understood as an estimate. For stations with good astronomical viewing conditions, this number will be very close to the number of detected meteors.

	[[File: Plots_Detected.png \| ~~Detected.png~~ ]]		[[File: Plots_Detected.png \| center ]]


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	In contrast to the Detected stack, a captured stack contains images from the entire night, some of which also are represented in the Detected stack.		In contrast to the Detected stack, a captured stack contains images from the entire night, some of which also are represented in the Detected stack.

	[[File: Plots_Captured.png \| ~~Captured.png~~ ]]		[[File: Plots_Captured.png \| center ]]


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	Similar to a Captured thumbnail, a ‘’Detected thumbnail’’ represents a matrix of only MaxPixel images that contain detections. Time stamps on these images specify a start point you can use to search for an interesting event. Unlike images in a Captured stack, Detected thumbnails are not stacked, which means that each image represents only one FF file.		Similar to a Captured thumbnail, a ‘’Detected thumbnail’’ represents a matrix of only MaxPixel images that contain detections. Time stamps on these images specify a start point you can use to search for an interesting event. Unlike images in a Captured stack, Detected thumbnails are not stacked, which means that each image represents only one FF file.

	[[File: Plots_DetectedThumbnails.png \| ~~DetectedThumbnails.png~~ ]]		[[File: Plots_DetectedThumbnails.png \| center ]]


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	Because MaxPixel values are stacked, the sky sometimes is too bright, which causes images to become saturated (completely white). This result can be is a combination of moonlight and high humidity or lightning that flashed in your field of view (FOV), illuminating the clouds.		Because MaxPixel values are stacked, the sky sometimes is too bright, which causes images to become saturated (completely white). This result can be is a combination of moonlight and high humidity or lightning that flashed in your field of view (FOV), illuminating the clouds.

	[[File: Plots_CapturedThumbnails.png \| ~~CapturedThumbnails.png~~ ]]		[[File: Plots_CapturedThumbnails.png \| center ]]


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	A radiant association is based on single station observations, which may be wrong when combined with other stations. Usually, counts are highly accurate for a significant event or major shower activity. In the lower part of the plot, the vertical dashed red line represents the current position of the Earth relative to solar longitude and active radiants on the date of observation.		A radiant association is based on single station observations, which may be wrong when combined with other stations. Usually, counts are highly accurate for a significant event or major shower activity. In the lower part of the plot, the vertical dashed red line represents the current position of the Earth relative to solar longitude and active radiants on the date of observation.

	[[File: Plots_RadiantsPlot.png \| ~~RadiantsPlot.png~~ ]]		[[File: Plots_RadiantsPlot.png \| center ]]


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	This plot shows relative stability of frame recording throughout the course of the night.		This plot shows relative stability of frame recording throughout the course of the night.

	[[File: Plots_Timestamp_Intervals.png \| ~~Timestamp_Intervals~~.~~png~~ ]]		[[File: Plots_Timestamp_Intervals.png \| frameless \| center \| upright=2.0 ]]


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	This plot shows variations between pixel value sums from each FF file throughout the night. Because these values are deaveraged, any significant event peak should be obvious in the plot.		This plot shows variations between pixel value sums from each FF file throughout the night. Because these values are deaveraged, any significant event peak should be obvious in the plot.

	[[File: Plots_DeaveratedFieldSums.png \| ~~DeaveratedFieldSums.png~~ ]]		[[File: Plots_DeaveratedFieldSums.png \| center]]


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	This plot shows the sum of intensity values from all pixels in each frame, from each FF file throughout the night. Average values from these sums are plotted in black and peak values are plotted in red. As before, each significant event in the camera field of view is shown as a peak.		This plot shows the sum of intensity values from all pixels in each frame, from each FF file throughout the night. Average values from these sums are plotted in black and peak values are plotted in red. As before, each significant event in the camera field of view is shown as a peak.

	[[File: Plots_PeakFieldSums.png \| ~~PeakFieldSums.png~~ ]]		[[File: Plots_PeakFieldSums.png \| center ]]


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	If there is a systemic error, lines display either as concentrically oriented or deviated in a single direction. Ideally, you want to see a lot of short lines that are oriented in multiple directions.		If there is a systemic error, lines display either as concentrically oriented or deviated in a single direction. Ideally, you want to see a lot of short lines that are oriented in multiple directions.

	[[File: Plots_AstrometryReport.png \| ~~AstrometryReport.png~~ ]]		[[File: Plots_AstrometryReport.png \| center ]]


Line 89:		Line 89:
	The results of a recheck are shown in this plot and the time from the first FF file is color-coded. The figure shows the difference between the refitted FOV and the reference FOV center in arcminutes, usually on the X-axis. It also shows the angle of rotation between the refitted FOV and the reference FOV.		The results of a recheck are shown in this plot and the time from the first FF file is color-coded. The figure shows the difference between the refitted FOV and the reference FOV center in arcminutes, usually on the X-axis. It also shows the angle of rotation between the refitted FOV and the reference FOV.

	[[File: Plots_CalibrationVariation.png \| ~~CalibrationVariation.png~~ ]]		[[File: Plots_CalibrationVariation.png \| center ]]

	If you study this plot for your camera through the night, you may be able to identify and fix problems related to the camera mount. On average, cameras move 5 to 6 arcminutes overnight, but there are documented cases of minor movements of only 2' and much larger movements of 15' or more.		If you study this plot for your camera through the night, you may be able to identify and fix problems related to the camera mount. On average, cameras move 5 to 6 arcminutes overnight, but there are documented cases of minor movements of only 2' and much larger movements of 15' or more.
Line 100:		Line 100:
	To calculate the limiting magnitude of a camera, subtract about 4 magnitudes from the photometry fit. For most 3.6mm cameras, this number is 10 or a bit more because these cameras have a limiting magnitude of about 6.		To calculate the limiting magnitude of a camera, subtract about 4 magnitudes from the photometry fit. For most 3.6mm cameras, this number is 10 or a bit more because these cameras have a limiting magnitude of about 6.

	[[File: Plots_PhotometryReport.png \| ~~PhotometryReport.png~~ ]]		[[File: Plots_PhotometryReport.png \| center ]]


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	Photometric offset over time		Photometric offset over time

	[[File: Plots_Photometric_offset.png \|~~Photometric_offset~~.~~png~~ ]]		[[File: Plots_Photometric_offset.png \| frameless \| center \| upright=2.0 ]]


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	Graphic plot Matched vs. Predicted stars throughout the night.		Graphic plot Matched vs. Predicted stars throughout the night.

	[[File: Plots_Flux_total.png \| ~~Flux_total~~.~~png~~ ]]		[[File: Plots_Flux_total.png \| frameless \| center \| upright=2.0 ]]


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	Flat after overlaying mask.bmp		Flat after overlaying mask.bmp

	[[File: Plots_Masked_flat.jpg \| ~~Masked_flat~~.~~jpg~~ ]]		[[File: Plots_Masked_flat.jpg \| frameless \| center \| upright=2.0 ]]

	== Observation Summary ==		== Observation Summary ==
	Observation summary data of hardware and data recording characteristics.		Observation summary data of hardware and data recording characteristics.

	[[File: Plots_ObservationSummary.png \| ~~ObservationSummary~~.~~png~~ ]]		[[File: Plots_ObservationSummary.png \| frameless \| center \| upright=2.0 ]]

	== Meteor Shower Flux ==		== Meteor Shower Flux ==
	Meteor shower flux charts, if specific showers are detected.		Meteor shower flux charts, if specific showers are detected.

	[[File: Plots_Shower_Flux.png \| ~~Shower_Flux.png~~ ]]		[[File: Plots_Shower_Flux.png \| center ]]


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	This TimeLapse.mp4 video contains many images from the previous night, but not all images. This video is not valuable for scientific applications, but it is useful to check dynamic weather conditions throughout the night.		This TimeLapse.mp4 video contains many images from the previous night, but not all images. This video is not valuable for scientific applications, but it is useful to check dynamic weather conditions throughout the night.

	[[File: Plots_TimeLapseVideo.png \| ~~TimeLapseVideo.png~~ ]]		[[File: Plots_TimeLapseVideo.png \| cener ]]

	== Acknowledgements ==		== Acknowledgements ==

	Most of the plots and images are courtesy of Danijel Reponj, Observatory Apollo, Croatia, GMN station HR000S. His camera, Cyclops II, is a replacement for the first analog camera, which ran 24/7 for 8 years!		Most of the plots and images are courtesy of Danijel Reponj, Observatory Apollo, Croatia, GMN station HR000S. His camera, Cyclops II, is a replacement for the first analog camera, which ran 24/7 for 8 years!

MetorsABQ9: /* Acknowledgements */

2026-02-01T22:16:26Z

Acknowledgements

← Older revision		Revision as of 17:16, 1 February 2026
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	== Acknowledgements ==		== Acknowledgements ==

	~~Plots~~ and images ~~in this document~~ are courtesy of Danijel Reponj, Observatory Apollo, Croatia, GMN station HR000S. His camera, Cyclops II, is a replacement for the first analog camera, which ran 24/7 for 8 years!		Most of the plots and images are courtesy of Danijel Reponj, Observatory Apollo, Croatia, GMN station HR000S. His camera, Cyclops II, is a replacement for the first analog camera, which ran 24/7 for 8 years!

MetorsABQ9: /* Observation Summary */

2026-02-01T22:15:16Z

Observation Summary

← Older revision		Revision as of 17:15, 1 February 2026
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	Observation summary data of hardware and data recording characteristics.		Observation summary data of hardware and data recording characteristics.

	[[File: ~~Plots_Observation_Summary~~.png \| ~~Observation_Summary~~.png ]]		[[File: Plots_ObservationSummary.png \| ObservationSummary.png ]]


	== Meteor Shower Flux ==		== Meteor Shower Flux ==