Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
तत्र खार्जूरिके चक्रे कथितं मूर्ध्नि भं न्यसेत् ।भाज्यैकरेखागतयोः सूर्याचंद्रमसोर्मिथः ॥ २१७ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 217.
In that Kharjurika chakra, place the named head star at the top. Say the Sun and the Moon fall on one line, facing each other.
Simple meaning: Put the head star at the top of the date-palm figure. Check if the Sun and Moon share one line.
एकार्गलो दृष्टिपातश्चाभिजिद्वर्जितानि वै ।
Sun and Moon on one line of the figure is the single-bolt fault. Abhijit is left out.
योगं प्रकरणं योगाः क्रमात्तु सप्तविंशतिः ।
There are 27 yogas in order. Then the karana lords begin: Indra, Prajapati, Mitra and others.
कीनाशः कलिरुद्राख्यो तिथ्यर्द्धेशास्त्वहिर्मरुत् ।
Eleven gods rule the eleven karanas. The first six karanas, Bava to Vanija, are good.