Sky Event Scanner

Scan Mode:

Min Planets:

Max Sky Span: 120°

Min Sun Separation: 10°

From Year:

To Year:

Idle. Set the range, then run the sky scan.

Eclipse Scanner

From Year:

To Year (incl.):

Both years are fully included. For a single year, set both to the same value.

Solar Lunar

Idle. Eclipse pass waits for a year range.

Event Matrix Results

Run a scan to populate the event matrix.

Sky Dome

Facing S 180 deg - 25 deg alt

Sky Guide

Pick a surface observer to calculate dawn and dusk viewing windows.

ZENITH Package Status

SOURCE: VSOP87 SURVEY MODE

Install StateChecking..

StorageChecking..

Installed FilesChecking..

Missing FilesChecking..

First Launch Briefing

Survey Mode keeps HORIZON 87 lightweight on first load. ZENITH adds the local CSPICE/WebAssembly runtime and DE441 kernels for raw J2000 state vectors, validation records, and mission exports.

Precision Residual Lab

Validation Date

Correction Convention

Strict validation gate

Ready for live NASA/JPL Horizons DE441 vector validation.

Mission Lab - Earth to Mars

OutputMetric, density, run controls

Plot Metric

Compute Density

Generate to compute a live candidate grid.

Screening run. Assumptions and limits are written into the report.

RouteOrigin, destination, transfer branch

Origin

Destination

Transfer Branch

WindowDeparture and arrival date ranges

Depart Start

Depart End

Arrival Start

Arrival End

ConstraintsFlight time, energy limits, diagnostics

Min TOF

Max TOF

C3 Limit

Arrival V-inf Limit

Propagator Mode

Burn Duration (s)

Coast Perturbations

Include Jupiter perturbation

TCM Targeting

Audit tolerance

Audit step days

Show solver masks and statistics

Budget TermsUser-entered screening allowances

Plane Change

Plane Change km/s

Launch Gravity Loss km/s

Capture / MOI

Capture km/s

Capture Altitude km

Perturbation Margin %

Three-body Margin %

Arrival TargetingOptional local audit diagnostics

B-Plane Target

Target B.T km

Target B.R km

Periapsis Alt km

B-Plane 3-Sigma km

Audit EffectsOptional propagation/check terms, not optimization

Solar radiation pressure estimate

First-order relativity estimate

SRP Area m2

SRP Cr

Maneuver sigma m/s

Arrival Mode

Flyby Chain

Flyby Alt km

Lambert Revs

Velocity covariance m2/s2

VehicleOptional mass, reserve, power screening

Enable mass depletion model

Isp s

Thrust N

Dry Mass kg

Mass Reserve %

Prop Density kg/m3

Mix O/F

Boiloff %/day

TCM Reserve m/s

3-Sigma m/s

Array W @ 1AU

Cruise Load W

Heater W

Launcher Curve

Custom payload kg

Custom C3 point

LV Perf Margin %

MC Samples

Dep sigma m/s

Custom C3,payload curve

Settings

Help

Quick tour of the orrery, Analysis Deck, sky map, and mission lab. Same button lives in About bottom-left.

Interface

Interaction Popups

Brief alerts when you select, follow, or clear a target.

About & Support dock

Bottom-left About and Support shortcuts. Hidden while the HUD is off (press H).

Display

Orrery Colors

Adaptive shifts to gold during eclipses, alignments, or scanned dates.

Sky Dome Planet Scale

Stylized keeps real positions but enlarges distant planets for selection.

Planet Size & Spacing Stylized

Stylized True scale

At 100%, bodies use true relative AU spacing and diameter.

Scanners

Combined Event Scanner

Runs the eclipse-plus-alignment scanner and matrix filter.

Research Mode

Source: survey mode

RuntimeChecking…

Horizons refStandby

Storagen/a

GateStandard

ZENITH uses local DE441 for precision residuals. Validation compares vectors against live NASA/JPL Horizons.

Strict validation gate

Install ZENITH and select it as the engine to run validation.

Advanced

Theme

Horizon uses the dark observatory theme.

Export Scan Data

Computation & Labs

Uses local DE442s where available, with analytical fallback outside the kernel range.

Legend: Geocentric Sky Position

Load Alignment Matrix JSON

Run a scanner or import a matrix JSON when needed