Khar Maasa classification

derived.khar-maasa

Solar sign classifies Dhanu or Meena periods as Khar Maasa.

Assurance

Level	Current statement
Documented and traceable	Yes — the canonical record includes the process and a worked example.
Regression or reproduction checked	Linked to 1 repository test file(s).
Independently source-supported	Not recorded as independently verified. The disclosed provenance state remains authoritative.

Computation method

Method type: decision-table

Classify only Dhanu and Meena solar Rashis as Khar Maasa and return a display name.

Process

1. Read the solar Rashi at the Panchangam snapshot.
2. Map Dhanu to Dhanur and Meena to Meena.
3. Return null for every other sign or missing input.

Worked example

Sun in Dhanu

Inputs

• Solar Rashi: Dhanu

Calculation

1. Dhanu matches KHAR_MAASA_SIGNS.
2. Apply the display-name mapping Dhanu -> Dhanur.

Result

• Khar Maasa: Dhanur

Method notes

• Downstream activity profiles decide whether the classification affects a requested ceremony.

Contract

Owning layer: derived
Claim kind: textual-rule
Time basis: Solar rashi at the Panchangam-day snapshot.

Inputs

• solar rashi

Outputs

• Khar Maasa name or null

References and evidence

Evidence classes: textual
Verification states: needs_locator

The classification is tested but remains under the broad locator gap.

panchangam.derived_classifications

Evidence class: textual
Verification state: needs_locator
Locator: No precise locator is registered.

Scope: Special Yogas, Panchaka labels, Khara month, Pitru Paksha, Simha-Stha, Maudhya, Anandadi Yoga, Disha Shoola, Nakshatra Mukha and Panchaka Rahita are separate traditional classifications. The group exists to expose evidence debt and grants no umbrella textual authority; each component needs its own inspected rule table and regional boundary.

Sources

• Muhurtha (Electional Astrology) — B. V. Raman; UBS Publishers' Distributors, 1993, ISBN 9788185674681, 181 catalogued pages; authority type: modern_synthesis
• Muhurta Chintamani — Rama Daivajna; Undated Sanskrit text with Hindi commentary, Internet Archive identifier muhurta-chintamani-hindi; authority type: primary_text_hindi_commentary

The complete machine-readable source registry is available in provenance.json. A regression fixture or same-code reproduction is not independent verification.

Reproduce and review

• tests/test_khar_maasa.py

Run the linked tests, then the complete offline contract:

python tools/verify_project.py

Public surfaces

• python-library
• mcp
• website

Limitations

• Its effect depends on the activity profile; the flag alone is not an absolute verdict.

Implementation

• owner: telugu_panchangam/maasa_filters.py — khar_maasa_name

This route is generated from computations.json. Edit the registry and canonical reference prose in the same pull request as a behavior change.