Rishi: Brahmodya tradition (Vājasaneyin)
Devata: Interrogative; resolved as Brahman/Dyauḥ/Indra/Go in the answer-mantra
Chandas: Triṣṭubh-like cadence (verification needed)
Samhita Patha (Devanagari)किᳪ स्वि॒त्सूर्य॑समं॒ ज्योति॒: किᳪ स॑मु॒द्रस॑म॒ᳪ सर॑: । किᳪ स्वि॑त्पृथि॒व्यै वर्षी॑य॒: कस्य॒ मात्रा॒ न वि॑द्यते
Transliterationkíṃ svít sū́rya-samaṃ jyótiḥ kíṃ samudrá-samaṃ sáraḥ | kíṃ svít pṛthivyái varṣī́yaḥ kásya mā́trā ná vidyate ||
Translationแสงใดหนอเสมอด้วยสุริยะ? สระใดหนอเสมอด้วยมหาสมุทร? สิ่งใดหนอใหญ่ยิ่งกว่าปฐพี? และของผู้ใดเล่าที่ไม่อาจพบประมาณได้?
Padapatha (Word Analysis)किम् । स्वित् । सूर्य-समम् । ज्योतिः । किम् । समुद्र-समम् । सरः । किम् । स्वित् । पृथिव्यै । वर्षीयः । कस्य । मात्रा । न । विद्यते ।
Word by Wordसूर्य-समम्equal to the sun समुद्र-समम्equal to the ocean सरःlake, pool, water-body वर्षीयःgreater, more extensive 
Entities MentionedS
Samudra (Ocean) / Āpaḥ (Waters)B
Brahman (the immeasurable) Viniyoga (Ritual Application)