Pick up to 4 missions to compare side-by-side. State lives in the URL — share the link and the comparison loads exactly as you left it.
Six nations have placed lunar orbiters since 2007 — a 4× increase in 15 years.
| Attribute | 🇯🇵 SELENE (Kaguya) SELenological and ENgineering Explorer Trust: Agency-primaryⓘ Last verified Remove × | 🇺🇸 Lunar Reconnaissance Orbiter (LRO)Active · Last updated 2026-06-01 Trust: Agency-primaryⓘ Last verified Remove × | |
|---|---|---|---|
| Agency | JAXA | NASA | NASA |
| Status | Mission Complete | Mission Complete | Active |
| Mission type | Orbiter | Orbiter | Orbiter |
| Launch date | 2007-09-14 | 2013-09-06 | 2009-06-18 |
| End date | 2009-06-10 | 2014-04-17 | Active |
| Orbit | 100 km circular polar orbit (primary phase) | Low equatorial orbit ~50 km (primary); final phase 2-5 km altitude | Polar low lunar orbit ~50 km (average) |
| Mass | 2,855 kgas of [1]Main orbiter (2,230 kg) + Rstar relay sub-satellite (53 kg) + VRAD sub-satellite (52 kg) ↑ Heaviest | 383 kgas of [1] | 1,916 kgas of [1]Includes Diviner, LOLA, LROC, MiniRF, LAMP, LEND, CRaTER instruments |
| Instruments | 15 instrumentsas of [1] | 3 science instruments + 1 tech demoas of [1] ↑ Most instruments | 7 instrumentsas of [1] |
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| Outcome | JAXA's flagship lunar orbiter, second only to LRO in scientific output. SELENE performed a controlled impact on the lunar near-side in June 2009, with the impact flash confirmed by ground telescopes. Its terrain camera produced the most complete global DEM of the Moon prior to LOLA/LRO. | NASA Discovery-class orbiter that characterized the tenuous lunar atmosphere (exosphere) and dust environment. LADEE's Lunar Laser Communication Demonstration achieved 622 Mbps download from lunar orbit — a record at the time. Controlled impact on the lunar far side on 17 April 2014. | NASA's comprehensive lunar scout, now 16+ years in orbit. LRO has produced the most detailed maps of the lunar surface ever made, identified water-ice at the poles, and characterized the radiation environment for future crewed missions. Its LROC camera system imaged the Apollo landing sites, Chinese Chang'e landers, and recent commercial missions including IM-1 Odysseus. |
All 11 lunar orbital missions with primary-source citations from NASA, ESA, JAXA, ISRO, CNSA, and NASA NSSDCA. Coverage spans Clementine (1994) through LRO (active 2026). Pure URL state — bookmark or share the link and the comparison reproduces exactly.