Category Archives: Lunar Orbiters

Tuesday / 14 Feb 2023

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ISRO Preparing Host of Advanced Science Payloads for Chandrayaan-3 Lander, Rover and Propulsion Modules

Launching NET June, Chandrayaan-3 is targeting a 4 x 2.4-km site between Manzinus N and Manzinus U craters (69.37°S, 32.35°E), ~109km east of planned landing site of Chandrayaan-2 (2019); 1,726-kg lander will carry 7 science instruments including Radio Anatomy of Moon Bound Hypersensitive ionosphere and Atmosphere (RAMBHA) and 9 sensors; 26-kg rover outfitted with Laser Induced Breakdown Spectroscope (LIBS) and Alpha Particle X-ray Spectrometer (APXS); 2,148-kg Propulsion Module will host Spectro-polarimetry of HAbitable Planet Earth (SHAPE) at 100-km polar orbit; Surface operations to be conducted over 1-lunar day / ~14 Earth days

Credits: ISRO, CNSA, NASA

Friday / 10 Feb 2023

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Capstone Lunar Orbit Pathfinder Team Attempting to Establish 2-Way Communication / Navigation Link with LRO

Led by Advanced Space, Capstone mission on 13th orbit of Moon, will soon exceed 3 months in 1,500 x 75,000-km near-rectilinear halo orbit (NRHO), the intended path of Lunar Gateway human waystation (launching NET Nov 2024); The Terran Orbital-built 6U CubeSat has ~56% fuel (120 m/s ΔV) remaining, on track to surpass 6-month goal in orbit following 11-day command loss / recovery; Team working to validate spacecraft-to-spacecraft navigation tech demonstration Cislunar Autonomous Positioning System with LRO, and attempt stand-alone navigation with Chip Scale Atomic Clock measurement of DSN radio signal

Pictured: Advanced Space CEO Bradley Cheetham; Credits: Advanced Space, NASA, Terran Orbital

Tuesday / 7 Feb 2023

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Artemis 2 ‘Mega Moon Rocket’ Construction on Track for 2024 Crewed Mission as SpaceX Starship Preps for Orbital Test

Build of next NASA Moonship advances with Artemis 2 SLS core stage nearing completion / integration with 4 Aerojet Rocketdyne RS-25 engines at Michoud Assembly Facility; Sets of SRBs for Artemis 2 & 3 await vehicle readiness at Utah Northrop Grumman plant; Interim Cryogenic Propulsion Stage (ICPS) in final assembly at Florida ULA factory; Orion European Service Module build progressing at KSC Neil Armstrong Building with acoustic tests slated for spring; Orbital test of Starship, the SpaceX vehicle planned to land Astronauts on the Moon (NLT 4 July 2026) may launch orbital test in March if imminent static fire of 33-Raptor engine Super Heavy prototype is successful

Credits: NASA, SpaceX

Weekend Edition
Fri-Mon / 27-30 Jan 2023

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CNSA Continues Exploration and Science on the Surface of Moon as Phase 4 of Chang’E Program to Begin NET 2024

Chang’e-4 Moon Lander and Yutu-2 (‘Jade Rabbit’) rover are again busy gathering data / traversing the lunar surface following 16 and 15 Jan activation commands marking start of their 51st lunar day (equivalent to 1,479 Earth days); Yutu-2 has traveled 1,455-m; As Queqiao (‘Magpie Bridge’) replay satellite nears end of 5-year mission life in June, Queqiao-2 with 8-year lifespan being prepared for launch in early 2024, an essential communication link for farside SPA sample-return mission Chang’E-6 NET 2024, MSP CE-7 NET 2026, and CE-8 NET 2028

Pictured: Chang’E-7 Deputy Chief Designer Tang Yuhua (T), CLEP Phase 3 Deputy Chief Designer Li Chunlai (B); Credits: CNSA / CLEP, CCTV via Inside Outer Space, IAF

Friday / 13 Jan 2022

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ShadowCam Mapping of Perennially Dark Regions on Moon Begins with Shackleton Crater

2,040-m wide area of the interior of Shackleton Crater (89.9°S, 0.0°E) is first light for ShadowCam instrument on Korea Pathfinder Lunar Orbiter Danuri; Based on Lunar Reconnaissance Orbiter Camera Narrow Angle Camera with 200x light-gathering ability (equivalent to an increase from ISO 100 to 12,800), ShadowCam is a product of San Diego-based company Malin Space Science Systems operated by Arizona State University for NASA; 1.7 m/pixel resolution images to aid in water ice prospecting, landing site analysis for Artemis 3 human landings NET 2025 and KARI indigenous lander mission NET 2032

Credits: KARI, NASA

Weekend Edition
Fri-Mon / 6-9 Jan 2022

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A Host of Robotic Moon Landings in 2023 to Precede New Era of Human Lunar Orbital Missions

Artemis Age of lunar exploration will continue full-steam in coming year with NASA CLPS lander missions from Intuitive Machines (IM-1) and Astrobotic (PM1) targeting Q1 launch followed by JAXA SLIM NET April, ISRO Chandrayaan-3 NET June, Roscosomos Luna-25 NET July; SpaceX aims to send 9 passengers on lunar flyby on Starship dearMoon by EOY; NASA working towards Artemis-2 mission launching NET May 2024 with 4-member crew (3 USA, 1 Canada) to be announced soon; Meanwhile ispace Hakuto-R expected to join 9 international orbiters NET April; 4 Artemis-1 CubeSats in vicinity

Credits: NASA, JAXA, Lockheed Martin, Tyvak

Friday / 6 Jan 2022

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Korea Pathfinder Lunar Orbiter Danuri Sending Awesome Earthrise Images Home While Preparing for Science Operations

From a 100-km circular polar orbit around the Moon, Danuri has an excellent vantage of Earth rising over the lunarscape which KARI team is observing with Lunar Terrain Imager (LUTI), 1 of 6 science payloads to be used for 1-year nominal science mission commencing February; KMAG (KPLO Magnetometer), Wide-Angle Polarimetric Camera (PolCam), KPLO Gamma-Ray Spectrometer (KGRS), Disruption Tolerant Network Experiment Payload (DTNPL) also developed by KARI; ShadowCam built by ASU for NASA, based on Narrow Angle Camera components of LROC on LRO with 200x sensitivity

Credits: KARI

New Year Holiday Edition
Fri-Mon / 23 Dec 2022 – 2 Jan 2023

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2023 Moon Roster Full of Independent and National Touchdowns Following 2022 Orbital Activity

At least 6 attempts to robotically land on the lunar surface are slated for 2023, after a year that saw Capstone DRHO insertion, Danuri near 100 x 100 km desired polar orbit (refining current 109 x 8920 km via 4 additional orbital maneuvers), Artemis 1 flyby / DRO; Hakuto launched on Dec 11 as Orion splashed down, now on 1-month cruise to next TCM targeting April landing; Landers Nova-C and Peregrine launching NET Q1, SLIM April, Chandrayaan-3 June, Luna-25 July, while Chang’E-3 lander / LUT, Chang’E-4 Yutu-2 rover continue only current operations on Moon

Credits: NASA, ispace, IM, Astrobotic, ISRO

Weekend Edition
Fri-Mon / 16-19 Dec 2022

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KPLO ‘Danuri’ Begins Lunar Orbit Insertion Process, Joining Capstone, Artemis 1 CubeSats, Chandrayaan-2, ARTEMIS-P1 / P2, LRO

Cislunar spacecraft are now joined by 678-kg wet / 418-kg dry Korea Pathfinder Lunar Orbiter Danuri following first orbital insertion burn and near 100-km perilune 16 Dec at ~17:53 UTC (17 Dec 02:52 KST); 4 lunar orbit insertion maneuvers over the next 12 days are to deliver Danuri to a 100 x 100km polar (90°) inclination orbit where it will circle Luna 12x per Earth-day utilizing 6 science payloads including ASU ShadowCam for nominal 1-year on-orbit mission duration; 35-m Korea Deep Space Antenna in Yeoju, S. Korea providing tracking and comms

Credits: KARI

Friday / 2 Dec 2022

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Artemis 1 Orion Spacecraft Departing Lunar Distant Retrograde Orbit for Moon Flyby, Earth Return and Reentry

Orion headed back toward Moon following 105-second main engine trajectory maneuver, a 4-day leg of Artemis 1 journey which has seen the furthest travel of any human-rated vessel (aside from Apollo 10 ascent module in heliocentric disposal orbit) at 432,210-km from Earth; Final powered lunar flyby set to occur at 8:43 PST on 5 Dec, sending Orion on a 6-day trip towards Earth; 11 Dec reentry at 9:40 to be fastest (39,429 kph / Mach 32) and hottest (2,760°C) to date, first to employ ‘skip’ technique allowing precision splashdown and lowered g-forces

 Credits: NASA