Molniya Period Half-Day 12-Hour Orbit Reference Lookup
Rounded half-sidereal-day Molniya orbital-period convention; exact period near 11h58m, no orbit design or ground track.
Description
Molniya Period Half-Day 12-Hour Orbit Reference Lookup: look up a supported built-in reference entry.
An orbital period is the time required for a complete revolution under a stated convention. A rounded period reference is not an orbit propagator.
This tool returns a built-in reference entry for an exact supported selector. The supported entries and their scope are part of the tool; no website or current external table is queried.
When to use this tool
Use this tool when the supplied inputs match the specific operation described above and you need a repeatable result under its stated convention.
- Check the supported input and output contract against an existing calculation or observation.
- Use the complete example to confirm units, selector spelling and result interpretation.
How to use the tool and how it works
- Enter every field in the input table using the stated units and the exact supported selector spelling where applicable.
- Run the tool. Correct input errors before interpreting an output.
- Read the result fields below; use accompanying flags and the stated sign, boundary or model convention when interpreting a number.
Accept approximate-period-hours and return the built-in value 12.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| reference | Reference. | Exact value: "approximate-period-hours" |
| reference | Built-in entry |
|---|---|
| "approximate-period-hours" | 12 |
| Output field | Interpretation |
|---|---|
| result | Object containing the following named result fields. |
| result.reference | The stored entry for the exact selected key; its type may be text, a number or a list. |
{
"input": {
"reference": "approximate-period-hours"
},
"output": {
"result": {
"reference": 12
}
}
}Limitations and assumptions
- The output is a rounded Molniya period reference; orbital geometry and precise sidereal timing are not calculated.
- Every declared field is required and unexpected fields are rejected. Numeric inputs must be finite; input errors are distinct from a valid false result or an explicitly qualified output.
- Extremely large inputs and nonfinite or excessively large outputs are rejected. List positions reported by the tool use zero-based indices unless stated otherwise.
Alternative or Complementary methods
Check the underlying observations, units and conventions independently before using the result in a larger workflow. The tools listed below address nearby tasks; compare their inputs and scope before substituting one for this operation.
References
Similar or alternative tools
- Halo Orbit Amplitude km Class Note Generator
Qualified caller-reference registry: actual CR3BP system/family and independently established amplitude convention/solution; no halo orbit computation. Requires independently applicable source/context/date evidence; not an authoritative table, omitted predictive model, diagnosis, permission, safety or compliance determination.
- aerobraking geometric pass count
A constant fractional period reduction compounds over successive aerobraking passes.