ANNUS MIRABILIS — LOCAL OBSERVATION WORKSHEET
Record what you actually observed. Do not fill gaps with invented measurements.
Times in seconds; coordinates in the original source-image pixels. Add schema_version as the first column and 2 as the first cell of every observation row before importing.

# pixels_per_um_x_interval=
# pixels_per_um_y_interval=
# viscosity_interval_mpa_s=
# gas_constant_interval=
# radius_scale_axis=
# physical_input_coverage=
# physical_input_provenance=
# source_width_px=
# source_height_px=
# working_scale=
# rotation_degrees=
# pixel_aspect_ratio=
# pixels_per_um_x=
# pixels_per_um_y=
# pixels_per_um_x_uncertainty=
# pixels_per_um_y_uncertainty=
# calibration_axes=
# calibration_method=
# calibration_interval_um=
# declared_interval_s=
# frame_rate_hz=
# timing_source=
# temperature_k=
# temperature_interval_k=
# viscosity_mpa_s=
# viscosity_source=
# radius_um=
# radius_interval_um=
# radius_interval_coverage=
# exposure_s=
# drift_source=
# constant_set_id=
# sample=
# data_origin=
# radius_provenance=

kind,object_id,frame_time_s,x_px,y_px,lost,loss_reason,point_status,exclusion_reason,calibration_id,identity_decision
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Record at least ten independent clicks on one stationary feature with the same localization variance assumption.
Mark every loss/exclusion and its reason; record a new-object or reacquired-same decision after loss.
This empty worksheet is not an importable observation file until its declarations and rows have been completed.