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Rocket LabElectronRocket Lab Launch Complex 1A, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
The Mountain God Guards (iQPS Launch 3)
Launched
June 11, 2025 · 15:31 UTC
Summary
The Mountain God Guards (iQPS Launch 3) launched on a Rocket Lab Electron from Rocket Lab Launch Complex 1A, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand on June 11, 2025 at 15:31 UTC. The launch window ran from 15:15 to 16:05 UTC. It was Rocket Lab's 66th launch, 8th this year and humanity's 6,978th orbital launch attempt. It was the 66th Electron flight and the 8th this year. The payload was bound for low Earth orbit (LEO). Yamatsumi-I, one of 4 catalogued objects, reached a 577 × 590 km orbit inclined 42.0°. 4 objects from this launch are catalogued, one of them a payload.
- Watch
- Vehicle
- Electron · Rocket Lab
- Booster
- No booster details on record.
- Mission
- Earth Science · Low Earth Orbit (LEO)for iQPS
- Milestone
- 66th Electron flight · 8th this yearRocket Lab's 66th launch8th this yearhumanity's 6,978th orbital launch attempt129th orbital launch attempt this year
Webcast
Flight preview
Orbit: as tracked
Yamatsumi-I · NORAD 64340 · 2025-125 · Space-Track · tracking 1 of 4 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2025-125A
- Epoch
- 2025-06-11 19:28:47 UTC
- Mean motion
- 14.97009609 rev/day
- Eccentricity
- 0.0009157
- Inclination
- 42.0036°
- Ascending node
- 66.6639°
- Arg. of perigee
- 283.8551°
- Mean anomaly
- 122.9242°
- Element set
- 999
- Rev at epoch
- 2
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Flight timeline
- T−2MStartup
- T−2SIgnition
- T−0Liftoff
- T+55SSupersonic
- T+1M7SMax-Q
- T+2M26SMECO
- T+2M30SStage 2 Separation
- T+2M33SSES
- T+3M32SFairing Separation
- T+6M24SBattery Hotswap
- T+8M59SSECO
- T+9M3SKick Stage Separation
- T+47M26SKick Stage Ignition
- T+49M54SKick Stage Cut-off
- T+50M44SPayload Separation
Catalogued objects
4 catalogued: 1 payload, 2 rocket stages, 1 debris; 1 still in orbit
- Yamatsumi-I · NORAD 64340 · in orbit
Electron 66 Kick Stage · re-entered September 17, 2025
Electron 66 Stage 2 · re-entered July 24, 2024
Data from J. McDowell, planet4589.org
About this launch
Synthetic aperture radar Earth observation satellite for Japanese Earth imaging company iQPS.
Pad
Rocket Lab Launch Complex 1A, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
31st launch from Rocket Lab Launch Complex 1A, 4th this year · 60th from Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
Local pad time at liftoff: Jun 12, 3:31 AM GMT+12, at night
43 launches from this pad · 84 from Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
25 days after the previous launch from this pad
All launches from Rocket Lab Launch Complex 1, Mahia Peninsula, New ZealandOpen in maps
Updates
Satellite in contact.
Show 9 earlier updates
Spacecraft separation.
Cosmic_Penguin · 6/11/2025 · source
Liftoff!
hitura-nobad · 6/11/2025 · source
Official Webcast by Rocket Lab has started
LL2 · 6/11/2025 · source
Updated launch weather, 70% GO.
Cosmic_Penguin · 6/11/2025 · source
New T-0.
Cosmic_Penguin · 6/11/2025 · source
Delayed to June 11 due to launch site weather.
Cosmic_Penguin · 6/9/2025 · source
GO for launch.
Cosmic_Penguin · 6/3/2025 · source
NET June.
Cosmic_Penguin · 5/17/2025 · source
Added launch.
Cosmic_Penguin · 2/5/2025 · source
Questions
When did The Mountain God Guards (iQPS Launch 3) launch?
The Mountain God Guards (iQPS Launch 3) launched on June 11, 2025 at 15:31 UTC. The launch window ran from 15:15 to 16:05 UTC.
Where can I watch The Mountain God Guards (iQPS Launch 3)?
Coverage: Rocket Lab - 'The Mountain God Guards' Launch. Watch the replay
What rocket launched The Mountain God Guards (iQPS Launch 3)?
Electron, flown by Rocket Lab. Electron spec sheet
Where did The Mountain God Guards (iQPS Launch 3) launch from?
Rocket Lab Launch Complex 1A, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand. Liftoff was Jun 12, 3:31 AM GMT+12 local time at the pad.
What orbit did The Mountain God Guards (iQPS Launch 3) reach?
Yamatsumi-I, one of 4 catalogued objects, reached a 577 × 590 km orbit inclined 42.0°.
How many satellites did The Mountain God Guards (iQPS Launch 3) launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).