Category Archives: Lunar Landers

Tuesday / 30 Jan 2024

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SLIM Awakens, Resumes Mission to Characterize Lunar Surface

The motorcycle-sized SLIM lunar lander is collecting solar energy and conducting spectral analysis of regolith near 13.3160° S, 25.2510° E landing site after 10 days of uncertainty following off-nominal descent caused by loss of 1 (of 2) 500 N main engine resulting in a flipped landing orientation requiring westward sun; Despite this adversity, SLIM did achieve 1.4 m/s soft-landing within ~55 m of precision targeted site and is set to continue collecting data until end of lunar day, ~31 Jan UTC (began ~16 Jan) within 10 spectral bands via Multiband Spectroscopic Camera (MBC); Landscape image (L) generated by completing 257 low-res images reveals first light including protuberance dubbed ‘toy poodle’

Credits: JAXA, Ritsumeikan University, University of Aizu

Tuesday / 23 Jan 2024

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Japan Celebrates Becoming 5th Nation to Soft Land on Moon as Efforts to Extend Surface Operations Continue

JAXA has met its minimum success criteria for SLIM mission by landing softly on the lunar surface, however operations were suspended when battery level reached 12% at 02:57, Jan 20 JST (17:57 on 19 Jan UTC) just hours after landing due to attitude anomaly which left solar panels oriented westward; Prior to battery disconnection, JAXA ‘obtained a lot of data‘ and hopes to receive more if lander can be reactivated as Sun moves west toward the end of the current lunar day (~30 Jan); While not designed for lunar night survivability, ‘if the spacecraft survives the -200°F night, then in two weeks’ time, it could revive again‘ per ISAS Director General Hitoshi Kuninaka

Credits: JAXA

Weekend Edition
Fri-Mon / 19-22 Jan 2024

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Astrobotic Looking Forward as Intuitive Machines Prepares its Effort to Land First Commercial Mission on Moon

The first attempted USA commercial lunar lander has returned to Earth, reentering over the South Pacific with undetermined wreckage possibly resting near 23.087°S, 176.594°E ~450 km south of Kadavu (Fiji) and east of Aneityum (Vanuatu) Islands; Despite propellant leak which prevented Moon landing, “There’s a lot that worked” on Peregrine Mission 1, Astrobotic CEO John Thornton told media at joint NASA press conference, while the final mission update declares Peregrine has flown so Griffin may land; Intuitive Machines IM-1 is the next (of up to 9) scheduled CLPS missions, with Nova-C launch window set to open NET 11 Feb; CEO Steve Altemus envisions infrastructure business model “where the company plays the same role as highways, railroads, and shipping lanes are for Earth, but at the moon [sic]” per interview with Spectrum News in Orlando

Credits: Astrobotic

Friday / 19 Jan 2024

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Japan Aerospace Exploration Agency Moon Mission Preparing for Final Landing Approach

JAXA Smart Lander for Investigating Moon (SLIM) currently in elliptical 600 x 150 km lunar orbit following Perigee Descent Maneuver #1 (PDM1) which transferred craft from a 600 x 600 km circular orbit on 17 Jan 22:28 JST (13:28 UTC); Operators now preparing for PDM2, which is slated to bring orbit perilune even closer to the lunar surface (15 m) while maintaining 600 km apolune at ~22:40 JST (13:40 UTC) on 19 Jan; Mission success to be measured by 3 criteria: achieving soft landing (minimum), verification of <100 m landing accuracy (full) and continued operations until lunar nightfall (extra); Onboard Multiband Camera to investigate area around 13.2° S, 25.3° E landing site for mineral composition (specifically olivine) and LEV-1 /-2 rovers to explore & image lander; JAXA to livestream landing descent starting 20 Jan 00:00 JST (19 Jan 15:00 UTC)

Credits: JAXA

Tuesday / 16 Jan 2024

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Peregrine Set for Controlled Reentry into Earth Atmosphere as Astrobotic Works to Collect Data from Payloads

Now ~350,837 km from Earth, Peregrine Moon lander on 8th day of operation in cislunar space is in stable condition with propellant leak ‘practically stopped‘ as Astrobotic and USA government agencies work to determine trajectory for Earth reentry expected NET 18 Jan, although Astrobotic reserves right to determine final flight path independently; 10 payloads continue to receive power despite inability to conduct long duration corrective maneuvers; Joint press conference with NASA discussing mission set for 18 Jan 12:00 EST, which may shed light on Dynetics-built propulsion system valve anomaly

Credits: Astrobotic

Friday / 12 Jan 2024

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China Lunar Sample Return Mission Chang’E-6 Prepares for NET May Launch to Moon Far Side

CNSA Chang’E-6 Moon spacecraft (orbiter, lander, ascender and re-entry module – totaling 8,200-kg launch mass) now at Wenchang, Hainan undergoing pre-launch tests ahead of 53-day mission to collect 2 kg of lunar regolith from Apollo crater within South Pole-Aitken Basin (~43°S, 154°W), expected to launch in May; International payloads include Detection of Outgassing Radon (DORN, France), INstrument for landing-Roving laser Retroreflector Investigations (INRRI, Italy), Negative Ions on Lunar Surface (NILS, Sweden) and iCUBE-Q 3U Cube Sat (Pakistan); Chang’E-6 is the world’s first attempt at lunar far side sample retrieval

Credits: CNSA

Tuesday / 9 Jan 2024

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11 Days to SLIM Lunar Landing Attempt as Astrobotic Troubleshoots and Intuitive Machines Preps for NET Feb Launch

JAXA SLIM tightening 6.4 hour / 600 x 4,000 km elliptical lunar orbit ahead of maneuvers which are to bring landing craft to 15 x 600 km pre-landing orbit by 19 Jan JST ahead of 20 Jan 12:20 JST (19 Jan 10:20 EST) landing attempt which will employ unique horizontal landing strategy with goal of 100-m landing accuracy; Astrobotic team reestablish Peregrine communication and electrical power following successful ULA Vulcan Centaur launch and subsequent orientation anomaly, reconfiguration of mission may limit operations to lunar orbit and/or transit; Intuitive Machines NOVA-C set to be NASA CLPS next ‘shot on goal’ launching within multi-day window opening mid-Feb

Credits: JAXA, Astrobotic

Friday / 5 Jan 2024

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ULA Set for Inaugural Flight of Vulcan Centaur as 3 Companies Negotiate Purchase of Venerable Launch Provider

Certification-1 launch is ‘Go’ for 8 Jan at 2:18 EST following positive Launch Readiness Review; Vulcan Centaur V-001 fully stacked at Cape Canaveral Vertical Integration Facility with 61.6-m VC2S configuration (2 SRBs / standard payload fairing) carrying Astrobotic Peregrine lunar lander (itself holding 20 NASA and commercial payloads); ULA is reportedly courting sale, with private equity group Cerberus, Beechcraft / Cessna owner Textron, and most prominently Blue Origin among potential buyers; Vulcan Centaur first stage is powered by twin BE-4 methalox engines built near ULA facility in Huntsville AL, synergies which could help a combined ULA-Blue Origin challenge SpaceX launch industry dominance with ~$118M / launch price point

Credits: ULA, Astrobotic

New Year / Holiday Edition
Fri-Tues/ 22 Dec 2023 – 2 Jan 2024

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Japan Lander Near Moon Orbit as USA CLPS Providers and CNSA Ready Early 2024 Lunar Launches

SLIM set to perform LOI maneuver 25 Dec ahead of 20 Jan 100-m precision landing attempt near Shioli crater as JAXA engages global public with enhanced project website and amateur radio band transmissions to / from onboard LEV rover; Astrobotic Peregrine, now integrated within payload fairing atop the first fully stacked ULA Vulcan Centaur rocket, has 4-day launch window opening 02:18 EST on 8 Jan and anticipated landing 23 Feb on Sinus Viscositatis; Intuitive Machines Nova-C now targeting mid-Feb launch on SpaceX F9 due to weather / launchpad congestion with landing near Malapert A crater in the MSP region after ~7 days transit; CNSA Queqiao-2 communications relay to launch NET March 2024 followed by Chang’E-6 farside sample return NET May 2024, continuing 10+ years of China lunar surface exploration

Credits: JAXA, Intuitive Machines, IM, Astrobotic

Weekend Edition
Fri-Mon / 8-11 Dec 2023

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3 Lunar Missions Set to Land on Moon Near Side NET January

JAXA SLIM on lunar-bound trajectory as 2 commercial landers supported by NASA CLPS contracts, Astrobotic and Intuitive Machines, prepare for launch: SLIM set for lunar orbit insertion 25 Dec with mid-Jan orbit adjustment followed by landing (13.3°S, 25.2°E) NET 20 Jan 2024 (00:20 JST); Astrobotic Peregrine to launch on ULA Vulcan Centaur NET 24 Dec (1:50 EST), landing near Gruithuisen Domes NET 25 Jan (03:30 EST); Intuitive Machines Nova-C launching on SpaceX Falcon 9 NET 12 Jan, possibly landing (80.3°S, 1.2°E) 19 Jan within hours of SLIM

Credits: NASA, ESA, STScI