HORYU-4
Launch
Launched on Feb 17, 2016 from Yoshinobu Launch Complex LP-1, Japan aboard a H-IIA 202.
H-IIA 202 | Astro-H (Hitomi) →No longer in orbit
HORYU-4 reentered Earth's atmosphere on Jul 2, 2026. The orbit below is the last tracked element set, shown for reference — it is not a current position.
Last tracked · TLE epoch 2026-07-01 19:00 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
JAXA
Country
Japan
Manufacturer
—
Launched
Feb 17, 2016
Reentered
Jul 2, 2026
Mass
—
Apogee
217 km
Perigee
206 km
Inclination
30.98°
Period
88.6 min
Altitude history
Apogee and perigee for HORYU-4 across 37 days of archived orbital elements (38 element sets, one per day).
Trend
Decaying
Change
-121.0 km
Rate
-3.28 km/day
Now
206 × 217 km
Apogee Perigee
Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.
Launched with
One other catalogued object still in orbit from launch 2016-012 (H-IIA 202 | Astro-H (Hitomi)).
- ASTRO-H (HITOMI) · 41337
Sources & further reading
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