Enceladus Plume Particle Escape Speed Fraction Check Calculator
Actual equally weighted plume speed sample share at/above independently established local escape speed. Not total mass escaping or dynamical fate under drag, Saturntides/geometry.
Description
A measured particle sample can be compared with an adopted escape speed.
A measured particle sample can be compared with an adopted escape speed.1
The sample fraction is not automatically a plume's mass fraction or an actual escaping flux. Use this tool to calculate the stated observation or conditional model from supplied measurements.
When to use Enceladus Plume Particle Escape Speed Fraction Check Calculator
Use this tool to calculate the stated observation or conditional model from supplied measurements. Establish the observation or experimental context, reference/calibration source, unit basis and adopted model assumptions.
How to use Enceladus Plume Particle Escape Speed Fraction Check Calculator and understand its results
- Establish the observation or experimental context, reference/calibration source, unit basis and adopted model assumptions.
- Enter independentlyObservedParticleSpeedsMetersPerSecond, callerVerifiedEscapeSpeedMetersPerSecond, using the field meanings and rules below, then run the tool.
- Read result.observedAtOrAboveEscapeFraction. Interpret each field using the units, signs and evidence rules below.
- If input validation fails, correct the reported field and run again. Before applying a successful result, check the stated reference scope, units, assumptions and any retained unknown evidence.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| independentlyObservedParticleSpeedsMetersPerSecond | Independently observed particle speeds meters per second | list of number | Required |
| callerVerifiedEscapeSpeedMetersPerSecond | Caller verified escape speed meters per second | number | Required |
Require a nonempty list of nonnegative particle speeds in m/s and positive escape speed. Count speeds≥escape and divide by sample count. Every particle is equally weighted; no mass weighting, sampling correction or dynamical escape determination is supplied.
sampleAtOrAboveEscapeFraction=count(speed_i≥escapeSpeed)/sampleCount Apply the field units and exact ordering, boundary and evidence rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Structured result containing the calculation or selected reference fields below | object |
| result.observedAtOrAboveEscapeFraction | Observed At Or Above Escape Fraction; use the units, sign convention and calculation stated above | number |
{
"input": {
"independentlyObservedParticleSpeedsMetersPerSecond": [
100,
300
],
"callerVerifiedEscapeSpeedMetersPerSecond": 200
},
"output": {
"result": {
"observedAtOrAboveEscapeFraction": 0.5
}
}
}Limitations and assumptions
The sample fraction is not automatically a plume's mass fraction or an actual escaping flux. Results depend on the independently established measurement basis and the exact model assumptions above.
Every listed input requires an explicit value. Unexpected fields, incorrect value types, nonfinite numbers and sparse numeric arrays fail validation; tool-specific bounds and alignment rules apply as described above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful calculation that reports a false comparison or retains unknown evidence.
Alternative or Complementary methods
Use Panspermia Lithopanspermia Ejection Velocity Escape Check to examine a related aspect: Ideal escape-speed comparison uses independently measured ejection speed and an applicable escape reference.
Use Meteorite Transit Survival Shielding Thickness mm Estimator where its separate inputs and scope apply: An exponential attenuation model relates dose reduction to shield thickness.
References
Similar or alternative tools
- Panspermia Lithopanspermia Ejection Velocity Escape Check
Ideal escape-speed comparison uses independently measured ejection speed and an applicable escape reference.
- Meteorite Transit Survival Shielding Thickness mm Estimator
An exponential attenuation model relates dose reduction to shield thickness.