Panchangam Reference

Gochara transit verdicts and Vedha ​

gochara.transit-verdicts

Each graha's house from Janma Rashi is assessed against favourable houses and Vedha blocking rules.

Assurance ​

LevelCurrent statement
Documented and traceableYes — the canonical record includes the process and a worked example.
Regression or reproduction checkedLinked to 2 repository test file(s).
Independently source-supportedAvailable only for the explicitly named provenance claims or comparison cells.

Computation method ​

Method type: decision-table

Count each Graha's house from Janma Rashi, test its favourable-house set, and downgrade a favourable result when a non-exempt Graha occupies its mapped Vedha house.

Process ​

  1. Build a house-to-occupants index for the supplied sky.
  2. For each Graha, compute its inclusive house from Janma Rashi.
  3. Start adverse; change to favourable only when that house is in the Graha's favourable set.
  4. For non-node Grahas, find the Vedha house for that favourable position and scan its occupants.
  5. Ignore self, Rahu/Ketu, and the Surya-Shani or Chandra-Budha exemption pairs; otherwise mark blocked and name the first blocker.

Formulae ​

Gochara house ​

text
h_g = ((index(rasi_g)-index(janma_rasi)) mod 12)+1
  • h_g: Graha house from natal Moon sign

Worked example ​

Surya in Mithuna with Guru in Dhanu, Janma Mesha ​

Inputs

  • Janma Rashi: Mesha
  • Surya: Mithuna
  • Guru: Dhanu

Calculation

  1. Surya is in house 3, one of its favourable houses.
  2. Surya house 3 has Vedha house 9.
  3. Guru occupies house 9 and is not an exempt blocker.

Result

  • Surya verdict: blocked
  • Vedha by: Guru

Method notes ​

  • Rahu and Ketu use Surya's favourable houses but intentionally receive no Vedha processing under the registered conservative policy.

Contract ​

Owning layer: personal
Claim kind: textual-rule
Time basis: Daily transit snapshot relative to natal Moon sign.

Inputs ​

  • Janma Rashi
  • current graha rashis

Outputs ​

  • house
  • favourable boolean
  • Vedha blocker
  • verdict

References and evidence ​

Evidence classes: textual
Verification states: verified

Classical house and Vedha tables are claim-located; disclosed node handling is separately registered.

gochara.favourable_houses ​

Evidence class: textual
Verification state: verified
Locator: Chapter CIV (104), stanza 4, including its concluding all-planets 11th-house statement
Last reviewed: 2026-07-21
Scope: Supports the configured favourable houses counted from Janma Chandra for Surya, Chandra, Mangala, Budha, Guru, Shukra and Shani. The explicit houses in stanza 4 combine with its concluding statement that all Grahas are benefic in the 11th. It does not support the Vedha table, father-son exemptions, Rahu/Ketu convention, named Shani conditions, or the binary reduction of each transit to one verdict.

Sources ​

  • The Brihat Samhita — Varahamihira; N. Chidambaram Iyer translation, South Indian Press, 1884; authority type: primary_text_translation

gochara.vedha_tables ​

Evidence class: textual
Verification state: verified
Locator: Phaladeepika, Adhyaya XXVI, slokas 3-8 (printed pp. 287-289); Jataka Parijata, Volume III, Adhyaya XIII, note to sloka 60, printed pp. 833-834 (PDF pp. 127-128)
Last reviewed: 2026-07-21
Scope: Supports every configured favourable-house-to-Vedha-house pair for Surya, Chandra, Kuja, Budha, Guru, Shukra and Shani, plus the Surya-Shani and Chandra-Budha exemptions. It does not support this project's Rahu/Ketu policy or named Shani conditions. Brihat Samhita Chapter 104 is not the authority for this layer.

Sources ​

  • Phaladeepika — Mantreswara; V. Subrahmanya Sastri English translation, 1942; authority type: primary_text_translation
  • Jataka Parijata, Volume III — Vaidyanatha Dikshita; V. Subrahmanya Sastri English translation, Ranjan reprint of the 1932 edition; authority type: primary_text_translation

gochara.nodes ​

Evidence class: textual
Verification state: verified
Locator: Phaladeepika, Adhyaya XXVI, sloka 2 (printed p. 286), especially the concluding direction that Rahu and Ketu are similar to Surya
Last reviewed: 2026-07-21
Scope: Implements Phaladeepika 26.2's direction to treat Rahu and Ketu like Surya by admitting houses 3, 6, 10 and 11 from Janma Chandra. The passage does not establish whether nodes cause or receive Vedha, so the separate no-node-Vedha policy remains an explicitly unverified conservative boundary and does not inherit authority from this locator.

Sources ​

  • Phaladeepika — Mantreswara; V. Subrahmanya Sastri English translation, 1942; authority type: primary_text_translation

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 ​

Run the linked tests, then the complete offline contract:

bash
python tools/verify_project.py

Public surfaces ​

  • python-library
  • mcp
  • website
  • generated-data

Limitations ​

  • This is Moon-sign Gochara, not a full natal-chart or Dasha interpretation.

Implementation ​

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