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Atlas admits only rows whose definition and value were independently checked; its superseded mass values are not used.", "status": "allowed" }, "source_id": "nasa_gsfc_jupiter_fact_sheet" }, "quantity_id": "polar_radius", "reference_level": "1_bar", "uncertainty": null, "value_id": "jupiter:polar_radius:polar_radius_at_1_bar:nasa_gsfc_jupiter_fact_sheet:0" }, { "adequacy": null, "body_id": "jupiter", "canonical": { "kind": "scalar", "n": 35729.856, "unit": "s" }, "coherence_radius_definition_id": null, "definition_id": "sidereal_rotation_period", "epoch": { "kind": "none" }, "kind": "scalar", "notes": null, "physics_model": null, "precision": null, "provenance": { "kind": "source", "locator": "Planet table, Jupiter row, Sidereal Rotation Period: 0.41354 d", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "Numerical facts are retained with NASA/JPL credit; linked third-party references keep their own terms.", "status": "allowed" }, "source_id": "jpl_planetary_physical_parameters" }, "quantity_id": "rotation_period", "reference_level": null, "uncertainty": null, "value_id": "jupiter:rotation_period:sidereal_rotation_period:jpl_planetary_physical_parameters:0" }, { "adequacy": null, "body_id": "jupiter", "canonical": { "kind": "scalar", "n": 50.26, "unit": "W_m2" }, "coherence_radius_definition_id": null, "definition_id": "mean_orbit_solar_irradiance", "epoch": { "kind": "none" }, "kind": "scalar", "notes": "Published solar irradiance at Jupiter's mean heliocentric distance, normal to the rays.", "physics_model": null, "precision": { "digits": 4, "kind": "significant_figures" }, "provenance": { "kind": "source", "locator": "Jupiter/Earth comparison table, Solar irradiance: Jupiter 50.26 W/m²", "retrieved": "2026-09-02", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "The live NSSDC host was unavailable during review, so Atlas cites a dated, immutable capture transparently. Each candidate locator transcribes the cited field's label, value, and unit.", "status": "allowed" }, "source_id": "nasa_nssdc_jupiter_fact_sheet_archive" }, "quantity_id": "solar_irradiance", "reference_level": null, "uncertainty": null, "value_id": "jupiter:solar_irradiance:mean_orbit_solar_irradiance:nasa_nssdc_jupiter_fact_sheet_archive:0" }, { "adequacy": null, "body_id": "jupiter", "canonical": { "kind": "scalar", "n": 163.14999999999998, "unit": "K" }, "coherence_radius_definition_id": null, "definition_id": "temperature_at_1_bar", "epoch": { "kind": "none" }, "kind": "scalar", "notes": null, "physics_model": null, "precision": null, "provenance": { "kind": "source", "locator": "Mean temperatures on each planet: Jupiter -166°F (-110°C); giant values are at Earth sea-level pressure", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "Numerical facts are retained with NASA credit.", "status": "allowed" }, "source_id": "nasa_solar_system_temperatures" }, "quantity_id": "temperature", "reference_level": "1_bar", "uncertainty": null, "value_id": "jupiter:temperature:temperature_at_1_bar:nasa_solar_system_temperatures:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 0.4396484385773716, "unit": "rad" }, "coherence_radius_definition_id": null, "definition_id": "axial_tilt_to_orbit", "epoch": { "kind": "none" }, "kind": "scalar", "notes": null, "physics_model": null, "precision": { "digits": 4, "kind": "significant_figures" }, "provenance": { "kind": "source", "locator": "Mars/Earth comparison table, Obliquity to orbit: Mars 25.19 degrees", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "The live NSSDC host was unavailable during review, so Atlas cites a dated, immutable capture transparently. Each candidate locator transcribes the cited field's label, value, and unit.", "status": "allowed" }, "source_id": "nasa_nssdc_mars_fact_sheet_archive" }, "quantity_id": "axial_tilt", "reference_level": null, "uncertainty": null, "value_id": "mars:axial_tilt:axial_tilt_to_orbit:nasa_nssdc_mars_fact_sheet_archive:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 88774.92, "unit": "s" }, "coherence_radius_definition_id": null, "definition_id": "mean_solar_day", "epoch": { "kind": "none" }, "kind": "scalar", "notes": null, "physics_model": null, "precision": { "digits": 6, "kind": "significant_figures" }, "provenance": { "kind": "source", "locator": "Mars/Earth comparison table, Length of day: Mars 24.6597 h", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "The live NSSDC host was unavailable during review, so Atlas cites a dated, immutable capture transparently. Each candidate locator transcribes the cited field's label, value, and unit.", "status": "allowed" }, "source_id": "nasa_nssdc_mars_fact_sheet_archive" }, "quantity_id": "day_length", "reference_level": null, "uncertainty": null, "value_id": "mars:day_length:mean_solar_day:nasa_nssdc_mars_fact_sheet_archive:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 88642.664064, "unit": "s" }, "coherence_radius_definition_id": null, "definition_id": "sidereal_day", "epoch": { "kind": "none" }, "kind": "scalar", "notes": null, "physics_model": null, "precision": null, "provenance": { "kind": "source", "locator": "Planet table, Mars row, Sidereal Rotation Period: 1.02595676 d", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "Numerical facts are retained with NASA/JPL credit; linked third-party references keep their own terms.", "status": "allowed" }, "source_id": "jpl_planetary_physical_parameters" }, "quantity_id": "day_length", "reference_level": null, "uncertainty": null, "value_id": "mars:day_length:sidereal_day:jpl_planetary_physical_parameters:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 3933.964387539545, "unit": "kg_m3" }, "coherence_radius_definition_id": null, "definition_id": "bulk_mean_density_at_surface", "epoch": { "kind": "none" }, "kind": "derived", "notes": "Bulk mean density is derived from the admitted mass and volumetric mean radius. Its uncertainty is propagated when both inputs state uncertainties; the same-input coherence check is self-consistency, not independent evidence.", "physics_model": null, "precision": null, "provenance": { "formula_id": "density_from_mass_radius", "input_value_ids": [ "mars:mass:body_mass:jpl_planetary_physical_parameters:0", "mars:mean_radius:volumetric_mean_surface_radius:jpl_planetary_physical_parameters:0" ], "kind": "formula", "source_ids": [] }, "quantity_id": "density", "reference_level": "surface", "uncertainty": { "kind": "symmetric", "n": 0.7202573165264851, "unit": "kg_m3" }, "value_id": "mars:density:bulk_mean_density_at_surface:density_from_mass_radius:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 3396190, "unit": "m" }, "coherence_radius_definition_id": null, "definition_id": "equatorial_surface_radius", "epoch": { "kind": "none" }, "kind": "scalar", "notes": null, "physics_model": null, "precision": null, "provenance": { "kind": "source", "locator": "Table 4, Mars: equatorial radius 3396.19 ± 0.1 km", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "facts-with-citation", "notes": "Atlas retains cited reference radii and rotational constants only; the report and its typography remain under their upstream terms.", "status": "allowed" }, "source_id": "iau_wgccre_2015" }, "quantity_id": "equatorial_radius", "reference_level": "surface", "uncertainty": { "kind": "symmetric", "n": 100, "unit": "m" }, "value_id": "mars:equatorial_radius:equatorial_surface_radius:iau_wgccre_2015:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 42828373620000, "unit": "m3_s2" }, "coherence_radius_definition_id": null, "definition_id": "standard_gravitational_parameter", "epoch": { "kind": "none" }, "kind": "scalar", "notes": "The planet-only value is used; the Mars-system value is not.", "physics_model": null, "precision": null, "provenance": { "kind": "source", "locator": "Planet and Pluto GM table, Mars row, GM: 42828.37362 ± 0.0008 km^3/s^2 [DE440]", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "Numerical facts are retained with NASA/JPL credit; linked third-party references keep their own terms.", "status": "allowed" }, "source_id": "jpl_satellite_physical_parameters" }, "quantity_id": "gravitational_parameter", "reference_level": null, "uncertainty": { "kind": "symmetric", "n": 800000, "unit": "m3_s2" }, "value_id": "mars:gravitational_parameter:standard_gravitational_parameter:jpl_satellite_physical_parameters:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 3.69, "unit": "m_s2" }, "coherence_radius_definition_id": "equatorial_surface_radius", "definition_id": "effective_gravity_at_surface", "epoch": { "kind": "none" }, "kind": "scalar", "notes": "The physical-shape and rotation terms are large enough that Atlas uses the source's rotation-inclusive acceleration instead of admitting a monopole derivation.", "physics_model": "effective_rotating", "precision": { "digits": 3, "kind": "significant_figures" }, "provenance": { "kind": "source", "locator": "Mars/Earth comparison table, Surface acceleration (eq) (m/s²): Mars 3.69; fact-sheet notes define this row as rotation-inclusive", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "The live NSSDC host was unavailable during review, so Atlas cites a dated, immutable capture transparently. Each candidate locator transcribes the cited field's label, value, and unit.", "status": "allowed" }, "source_id": "nasa_nssdc_mars_fact_sheet_archive" }, "quantity_id": "gravity", "reference_level": "surface", "uncertainty": null, "value_id": "mars:gravity:effective_gravity_at_surface:nasa_nssdc_mars_fact_sheet_archive:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 3.71, "unit": "m_s2" }, "coherence_radius_definition_id": "equatorial_surface_radius", "definition_id": "gravitational_pull_at_reference_radius", "epoch": { "kind": "none" }, "kind": "scalar", "notes": "The JPL change log says equatorial gravity is computed from the table's mass and equatorial radius.", "physics_model": "monopole", "precision": { "digits": 3, "kind": "significant_figures" }, "provenance": { "kind": "source", "locator": "Planet table, Mars row, Equatorial Gravity: 3.71 m s^-2", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "Numerical facts are retained with NASA/JPL credit; linked third-party references keep their own terms.", "status": "allowed" }, "source_id": "jpl_planetary_physical_parameters" }, "quantity_id": "gravity", "reference_level": "surface", "uncertainty": null, "value_id": "mars:gravity:gravitational_pull_at_reference_radius:jpl_planetary_physical_parameters:0" }, { "adequacy": null, "body_id": "mars", "canonical": { "kind": "scalar", "n": 227936637241.84332, "unit": "m" }, "coherence_radius_definition_id": null, "definition_id": "heliocentric_orbital_semimajor_axis", "epoch": { "kind": "none" }, "kind": "scalar", "notes": "This is the orbit's semimajor axis, not a time-averaged distance or current position.", "physics_model": null, "precision": { "digits": 9, "kind": "significant_figures" }, "provenance": { "kind": "source", "locator": "Mars Mean Orbital Elements (J2000), Semimajor axis (AU): 1.52366231", "retrieved": "2026-08-30", "reuse": { "credit_required": true, "license_id": "us-government-work", "notes": "The live NSSDC host was unavailable during review, so Atlas cites a dated, immutable capture transparently. 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