Compare · Rockets
Thor Agena A vs Kii-based Advanced & Instant ROcket System
RANKED BY PAYLOAD TO LOW EARTH ORBIT
#265 VS #266
CHECKED 29 SEPT 2026
Side by side
Verdict
Thor Agena A ranks #265 of 311 on Payload to low Earth orbit (250 kg); Kii-based Advanced & Instant ROcket System ranks #266 (250 kg).
Rank 265 of 311 · leads
Payload to low Earth orbit
250 kg
Launches15
Success rate60%
Payload to GTO—
First flight21 Jan 1959
Height28 m
Liftoff thrust667 kN
Launch mass53 t
Launch cost$10,700,000
ReusableNo
StatusRetired
Rank 266 of 311
Payload to low Earth orbit
250 kg
Launches3
Success rate0%
Payload to GTO—
First flight13 Mar 2024
Height18 m
Liftoff thrust—
Launch mass—
Launch cost$9,000,000
ReusableNo
StatusActive
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Source The Space Devs — Launch Library 2
Last checked 29 Sept 2026