Category Archives: LRO

Weekend Edition
Fri-Mon / 28-31 July 2023

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India Chandrayaan-3 Successful TLI Will Propel Craft to Join USA, PRC, S Korea in Cislunar Space; Soon Followed by Russia, Japan

Rounding out July ‘International Space / Moon Month’ is TransLunar Injection (18:30-19:30 UTC 31 July / 00:00-01:00 IST 1 August) planned for Chandrayaan-3, setting it on course for lunar orbit, lander / propulsion-module separation 17 Aug, lunar touchdown 23 Aug; Luna-25 and SLIM landers may be on track for NET 10 Aug and 26 Aug respectively, while commercial Astrobotic and Intuitive Machines hope for 2023 launches; Continually operating are: landers CE-3 & CE-4, rover Yutu-2, and orbiters LRO, ARTEMIS P1 & P2, CE-4 Queqiao, Chandrayaan-2, CE-5-T1 Service Module, CAPSTONE & Danuri

Credits: NASA, CNSA, KARI, ISRO, Advanced Space

Tuesday / 11 July 2023

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Lunar Far Side Hot Spot May Indicate Large Presence of Granite, Raising Questions About Moon Volcanism

Thorium-containing Compton–Belkovich Volcanic Complex lies over 50-diameter area with 20x higher heat flux vs typical lunar highlands, thought to signify large granitic structure, per research led by Planetary Science Institute, drawing primarily from Chang’E-1 & 2 four-channel (3-37 GHz) radiometric datasets paired with LRO Diviner IR, Chandrayaan-1, GRAIL, and Apollo readings; If confirmed, find may alter understanding of lunar volcanism / water on Moon timeline; Study lead Matthew Siegler of SMU to present in-person at Goldschmidt Conference in Lyon, France on 12 July

Pictured: Study authors (L-R) Matthew Siegler, Jianquing Fang of PSI; Credits: NASA, GSFC, ASU, WUSTL

Weekend Edition
Fri-Mon / 7-10 Oct 2022

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Stalwart Lunar Reconnaissance Orbiter Continues to Contribute to Cutting Edge Moon Science and Exploration

Team led by Vishnu Viswanathan of NASA Goddard Space Flight Center manipulate LOLA data to determine effect of asteroid impacts that created 5,200 Moon craters 20–1,200m in diameter over 4.25B years on True Polar Wander; Modeling suggests 10° / 300km variance, with implications for polar water ice location; LRO also actively in use for commercial exportation initiatives – in calibration testing of Intuitive Machines Lunar Telemetry and Tracking Network, set to support IM-1 mission NET Q1 2023 and in upcoming test of Cislunar Autonomous Positioning System on CAPSTONE

Credits: NASA, Advanced Space

Friday / 4 March 2022

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Errant Rocket Stage of Disputed Origin Hurtling Toward Moon to Impact Lunar Farside Friday

Astrodynamic modelling suggests 4 ton object of uncertain origin most likely is spent upper stage of LM-3C, used during Chang’e 5-T1 test mission, and will strike Moon at ~2.58 km/s; 18th Space Control Squadron, charged space tracking for USSF, confirms rocket did not reenter Earth atmosphere but tells Space News “we cannot confirm the [rocket’s] country of origin”; NASA LRO documents predicted impact site within Hertzsprung Crater for scientific comparison once impact occurs 4 March 02:25 HST; X-band signal emanating from Chang’e-5 spacecraft reveals it occupies Distant Retrograde Orbit, pre-empting USA plans to pathfind strategic trajectory

Credits: NASA, ASU

Friday / 19 Mar 2021

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Moon Orbiter Missions Set To Deliver Valuable Science, Resource And Landing Site Surveying

India Chandrayaan-2 Orbiter, Currently Maintaining 100 km Polar Path Around Moon, Is Now Expected To Continue Mission For Up To 7 Years Rather Than 1, Per Department Of Space Minister Jitendra Singh; Chandrayaan-2 Will Share Cislunar Space With: LRO, Now In Variable Fuel-Saving Elliptical Orbit And Approaching 12 Full Years Of Operations After Nominal 1-Year Exploration Mission; Chang’e-5T1 Service Module; ARTEMIS P1 / P2; Chang’e-4 Queqiao Relay Communications Craft At Earth-Moon L2; To Be Joined By Rocket Lab Capstone In Q3 2021

Pictured: Sarabhai Crater
Credits: ISRO, NASA

Tuesday / 23 Feb 2021

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LRO Equipped To Continue Producing Useful Science With Flight Software Update

As LRO Nears 12th Full Year Of Moon Observation, NASA Goddard Engineering Safety Center And Naval Postgraduate School Collaboration Fast Maneuvering AKA ‘FastMan’ Ensures Tilting Ability, Vital For Light / Shadow Measurement For 3D Modeling Of PSRs – Estimated At 40,000 km2 Area, 60% Of Which Located In MSP Area Per LRO / SOFIA; Deactivated Miniature Inertial Measurement Unit Spatial Readings Replicated By Algorithm That Melds Star-Tracking Data With Image-Based Navigation (Based On Technique Pioneered For ISS Zero Propellant Maneuver) Allowing Repositioning 25% Faster Than Star-Tracking Alone

Pictured: Julie Halverson, Space Science Mission Operations Lead Systems Engineer NASA GSFC; Mark Karpenko, NPS Research Associate Professor; Credits: NASA, NPS, IEEE

Weekend Edition
Fri-Mon / 14-17 Aug 2020

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USA, China On Fast Track For Human Moon Missions Through Sustained Science, Exploration Programs

NASA LRO Surpasses 5 Years In Polar Mapping Orbit Collecting Data For Landings; Part Of Extensive Artemis SPD-1 To Achieve Humans At Moon South Pole (MSP) 2024, CLPS Program To See 1st Commercial Landings [Astrobotic, Intuitive Machines] Second Half Of 2021, Masten To MSP 2022, VIPER MSP 2023, PRIME-1 & 19D Contracts Upcoming; China / Zhongguo Chang’e-4 Operating On Farside, CE-5 Sample Return Launching 24 Nov, CE-6 Payloads Being Selected, CE-7 Collaboration With Russia Developing, CE-8 In 2027 May Be Final Robotic Landing Before Crew

Credits: NASA, CNSA, NAOC-CAS

Tuesday / 11 Aug 2020

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Lunar Laser Ranging  (LLR) Techniques Advance With First 2-Way Infrared Signals Between NASA LRO + Grasse Station

Goddard Space Flight Center And University Côte d’Azur Collaboration Results In First Infrared Photons (~200 Out Of Tens Of Thousands) Received Back From LRO Reflector (15 × 18 × 5 cm, Traveling ~1.6 km Per Second); LRO Array And Other LLR Important For Understanding Lunar Dust / Degradation Of Apollo & Lunokhod Surface Reflectors, Refining Lunar Distance & Orientation, ‘With Implications For Both Lunar Interior Properties And For Astrophysics And Fundamental Physics’; New LLR Opportunities To Come From Future Commercial And Human Moon Landings

Pictured: Researchers from this collaboration; Credits: GSFC, NASA, Université Côte d’Azur, Observatoire de la Côte d’Azur, IRD, Géoazur, CNRS-INSU, CNES, ANR, MIT EAPS, et al

Weekend Edition
Fri-Mon / 21-24 Feb 2020

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USA, PRC Lunar Probes Break Records Operating From Orbit And On Surface

Chang’e-4 Yutu-2 Operates During 15th Lunar Day In South Pole-Aitken Basin, Longest Duration Of Any Rover In Moon History; Completes Over 367 Meters Travel And Discovers Younger Rocks In 3.6-Billion Year Old Von Karman Crater On Far Side; Netherlands-China Low Frequency Explorer Operates Aboard Queqiao Orbiter, Gathering Astronomy Data In 21 Cm Range; Lunar Reconnaissance Orbiter, In Orbit Since September 2009, Scouting Landing Sites For Artemis Human Lunar Landings

Credits: NASA, CLEP, CNSA

Weekend Edition
Fri-Mon / 24-27 Jan 2020

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Marathon “Intrepid” Lunar Rover To Be Developed By First Mode And Arizona State University

Seattle-Based First Mode Engineering Company And Arizona State University Selected By NASA To Build Marathon Lunar Rover, Nicknamed Intrepid; Rover Will Travel 1,800 Km On Moon Surface Over Four Years Powered By Radioisotope Thermoelectric Generator; 425-Kg Intrepid Will Carry 11 Instruments To Investigate Reiner Gamma Magnetic Anomaly, Marius Hills, Oceanus Procellarum And Aristarchus Crater; Principal Investigator Mark Robinson (L) Of ASU Is Also PI Of Successful Lunar Reconnaissance Orbiter Camera Team (R)

Credits: First Mode, Arizona State University