Argus Case File: ZTF17aabblzo

Static evidence report generated from the local case-file JSON.

Evidence Narrative

Evidence is limited by available comparator context

Some evidence layers are missing, failed, or limited by the available local detections. The case file supports cautious review rather than a firm conclusion.

Evidence Sections

Baseline transient-shape check insufficient_data
The Gaussian bump check could not be evaluated because too few usable detections were available.
Variability texture insufficient_data
The variability texture check could not be evaluated because too few usable detections were available.
Standard feature summary insufficient_data
Standard descriptive features could not be computed because too few usable detections were available.
Template-family probe limited
Template-family probing was limited because the usable detections were insufficient.
Cross-survey context not_requested
External catalog context was not requested for this case-file run.

What Argus Can Say

The current evidence supports cautious further review.
No spectroscopic information is recorded in this case file.

What Argus Cannot Say

Argus does not identify the object type.
Argus does not certify that the source is unusual.
Argus does not treat broker or catalog labels as ground truth.
Argus does not treat template-family probes as object identity.

Recommended Next Checks

Add verified redshift or context before interpreting template-family probes.
Run cross-survey context if network access and optional dependencies are available.
Inspect forced photometry around recent detections if available.

Caveat: This narrative summarizes evidence layers. It is not a physical classification.

Visual Summary

Object Summary

Object ID: ZTF17aabblzo
Source date: 2026-05-20
Available data sources: parquet_detections, raw_lightcurve_json, tensor_manifest
Coordinates: RA=12.5075, Dec=42.6524
Detections: 3
Non-detections: 246
Filters observed: g, r
First MJD: 58315.5
Last MJD: 61180.5
Time span days: 2865.02
Schema version: 1.12

Classification Metadata

No broker or catalog classification metadata is attached.

Any external labels shown here are metadata only, not Argus conclusions.

Light-Curve Summary

Detections: 3
Non-detections: 246
Filters observed: g, r
First MJD: 58315.5
Last MJD: 61180.5
Time span days: 2865.02
Most recent detection MJD: 59202.2
Longest detection gap days: 334.047

Per-Filter Summary

Filter	Detections	Non-detections	Mag min	Mag max	Delta mag
g	2	95	16.9572	17.1118	0.154563
r	1	151	16.7861	16.7861	0

Feature Summary

Source: light-curve
Band: r
Status: insufficient_data
Usable points: 1

Feature Values

None recorded.

Feature Diagnostics

cadence_sensitive_maximum_slope	False
cadence_sensitive_slope_threshold_days	0.05
maximum_slope_pair_delta_mag	Not available.
maximum_slope_pair_delta_time_days	Not available.
maximum_slope_pair_delta_time_minutes	Not available.
maximum_slope_pair_value_mag_per_day	Not available.
minimum_delta_time_days	Not available.
minimum_delta_time_minutes	Not available.

Interpretation: Standardized light-curve features were not computed for r-band: only 1 usable detection(s) were available, below the minimum of 5.
Caveat: Feature values are descriptive summaries only and do not identify the object type.

Evidence Triage Assessment

anomaly_assessment is an evidence triage summary inside this case file. It summarizes available signals for review; it is not an object-identity claim.

Status: available
Score: 3
Label: medium

Drivers

Coverage spans 2865 days, enough to inspect long-baseline behavior.
Both g and r observations are present for cross-band review.

Cautions

Only 3 detections are available, so sparse sampling limits confidence.
Feature summary status is insufficient_data.
Gaussian bump comparator status is insufficient_data.
Variability texture status is insufficient_data.
Template-family probe is limited: insufficient_data.
Catalog-context status is not_requested; external context remains limited.
Tensor coverage is sparse: 96% of band/time bins are masked.
This deterministic assessment supports review triage only. It is not a classification, model verdict, or claim about physical identity.

Input Summary

bands_present	["g", "r"]
brightest_to_median_delta_mag	{"g": 0.077281499999998, "r": 0.0}
cross_survey_context_status	not_requested
data_sources	["parquet_detections", "raw_lightcurve_json", "tensor_manifest"]
dual_band_median_difference_mag	0.248438
feature_summary_status	insufficient_data
gaussian_status	insufficient_data
max_brightest_to_median_delta_mag	0.0772815
max_observed_mag_range	0.154563
non_detection_count	246
observation_count	3
per_filter_mag_range	{"g": 0.15456299999999956, "r": 0.0}
sncosmo_template_probe_status	insufficient_data
tensor_flux_medians	{"g": 0.0, "r": 0.0}
tensor_frac_bins_masked	0.9625
tensor_manifest_available	True
tensor_observation_counts	{"g": 0, "g_upper_limits": 0, "r": 0, "r_upper_limits": 55}
tensor_total_unmasked_bins	15
time_span_days	2865.02
variability_behavior_hint	Not available.
variability_texture_status	insufficient_data

Caveat: This deterministic assessment supports review triage only. It is not a classification, model verdict, or claim about physical identity.

Comparison Summary

Comparison evidence is limited

The Gaussian bump comparator had insufficient r-band data (1 detection(s)), so it could not test a single smooth bump. The variability texture comparator had insufficient r-band data (1 detection(s)), so repeated or irregular texture could not be assessed. Together, these leave the light-curve shape underconstrained by the available comparator evidence.

Caveat: This is not a physical classification. It does not identify the object type, physical cause, or special status.
Recommended next check: Load or collect more r-band detections before interpreting comparator results.

Model Comparisons

Gaussian bump (r-band)

Model type: gaussian_bump
Filter used: r
Status: insufficient_data

Parameters

None recorded.

Fit Metrics

n_points	1

Residual Summary

Only 1 detection(s) in r-band — below the minimum of 5 required to fit a 4-parameter Gaussian bump.

Interpretation: No comparator was fit in r-band: not enough detections survive the quality cut.

Variability texture (r-band)

Model type: variability_texture
Filter used: r
Status: insufficient_data

Parameters

None recorded.

Fit Metrics

minimum_points	5
n_points	1

Residual Summary

Only 1 detection(s) in r-band - below the minimum of 5 required for the variability texture summary.

Interpretation: The r-band variability check was not computed: only 1 detection(s) were available, below the minimum of 5. This does not support a conclusion about the light-curve shape.

sncosmo template probe

Model type: sncosmo_template_probe
Filter used: g,r
Status: insufficient_data

Parameters

None recorded.

Fit Metrics

bands_used	["g", "r"]
magnitude_system	ab
model_family	sncosmo_template_family
n_points	3
template_name	hsiao
zeropoint	25

Residual Summary

Only 3 usable detection(s) after filtering invalid magnitude/error values.

Interpretation: sncosmo template fitting was not attempted because the available detections are not sufficient for a reliable template-family comparison.

Cross-Survey Context

Status: not_requested
Coordinates: Not available.
Search radius arcsec: Not available.

Sources

No catalog sources recorded.

Interpretation: Cross-survey catalog context was not requested for this run.
Caveat: No external catalog query was performed.

Uncertainty and Recommended Next Checks

Evidence Notes

Object has 3 rb-filtered detection(s) and 246 non-detection(s) on file.
Filters observed: g, r.
Coverage spans MJD 58315.46 to 61180.48 (2865 days).
Most recent detection: MJD 59202.20.
Longest gap between consecutive detections: 334 days.
In g-band: 2 detection(s), magnitude 16.96–17.11 (Δm = 0.15); 95 non-detection(s).
In r-band: 1 detection(s), magnitude 16.79–16.79 (Δm = 0.00); 151 non-detection(s).
No external classification label is attached to this object in local data.

Uncertainty Notes

Cross-survey catalog context is tracked in the cross_survey_context field; default offline runs record not_requested unless the optional lookup is explicitly enabled.
No spectroscopic information is on file.
No forced-photometry follow-up has been requested.
Candidate explanations above are placeholders, not fits, so mismatch magnitudes and goodness-of-fit values are not yet available.
No external classification label is present in local data.

Recommended Next Checks

Run the optional cross-survey context check at RA=12.50755, Dec=42.65244 if network access and optional dependencies are available.
Inspect archival image cutouts at this position and record any nearby source context as external metadata.
Pull ZTF forced photometry in a plus/minus 90-day window around the most recent detection (MJD 59202.20).
Add richer comparator families only when the required context is available, and record their residuals without treating them as object identity.