Tag Archives: Lunar XPrize

A UAE Rover Carried by a Japanese Lander Attempted a Moon Landing in April 2023

All Posts, Artificial Intelligence, Materials, Remote Sensing, Spacecraft and Missions, , , , ,

Peter Lobner, updated 13 September 2023

1. Introduction

To date, only Russia, the U.S. and China have accomplished soft landings on the Moon, with each nation using a launch vehicle and spacecraft developed within their own national space programs. 

On 8 October 2020, Sheikh Mohammed bin Rashid announced the formation of the UAE’s lunar rover program, which intends to accomplish the first moon landing for the Arab world using the commercial services of a U.S. SpaceX Falcon 9 launch vehicle and a Japanese ispace lunar landing vehicle named HAKUTO-R. Once on the lunar surface, the UAE’s Rashid rover will be deployed to perform a variety of science and exploration tasks. This mission was launched from Cape Canaveral on 11 December 2022.

Emirates Lunar Mission (ELM) patch. 
Source: MBRSpaceCenter tweet

2. Japan’s ispace HAKUTO-R lunar lander

The Japanese firm ispace, inc. was founded in September 2010, with headquarters in Tokyo, a U.S. office in Denver, CO, and a European office in Luxembourg.  Their website is here: https://ispace-inc.com

ispace’s HAKUTO team was one of six finalist teams competing for the Google Lunar XPRIZE. On 15 December 2017, XPRIZE reported,” Congratulations to Google Lunar XPRIZE Team HAKUTO for raising $90.2 million in Series A funding toward the development of a lunar lander and future lunar missions! This is the biggest investment to date for an XPRIZE team, and sends a strong signal that commercial lunar exploration is on the trajectory to success. One of the main goals of the Google Lunar XPRIZE is to revolutionize lunar exploration by spurring innovation in the private space sector, and this announcement demonstrates that there is strong market interest in innovative robotic solutions for sustainable exploration and development of the Moon. The XPRIZE Foundation looks forward to following Team HAKUTO as they progress toward their lunar mission!”

The Google Lunar XPRIZE was cancelled when it became clear that none of the finalist teams could meet the schedule for a lunar landing in 2018 and other constraints set for the competition.  Consequently, Team HAKUTO’s lander was not  flown on a mission to the Moon.

In April 2021, the Mohammed Bin Rashid Space Center (MBRSC) of the United Arab Emirates (UAE) signed a contract with ispace, under which ispace agreed to provide commercial payload delivery services for the Emirates Lunar Mission. After final testing in Germany, the ispace SERIES-1 (S1) lunar lander was ready in 2022 for the company’s ‘Mission 1,’ as part of its commercial lunar landing services program known as ‘HAKUTO-R’.

HAKUTO-R, aka SERIES-1 (S1), lunar lander general arrangement. 
It is more than 7 feet (2.3 meters) tall. Source: ispace

After its launch on 11 December 2022, the lunar spacecraft has been flying a “low energy” trajectory to the Moon in order to minimize fuel use during the transit and, hence, maximizes the available mission payload. It will take nearly five months for the combined lander / rover spacecraft to reach the Moon in April 2023.

The low-energy trajectory being flown for the Emirates Lunar Mission shows spacecraft position (end of blue line, at top) as of 4 March 2023. The spacecraft will enter lunar orbit (yellow circle) in April 2023, before landing on the Moon.
Source: ispace

The primary landing site is the  Atlas crater in Lacus Somniorum (Lake of Dreams), which is a basaltic plain formed by flows of basaltic lava, located in the northeastern quadrant of the moon’s near side.

Lake of Dreams is highlighted in the yellow square.
Source: The Lunar Registry
Hakuto-R Mission 1 Moon landing milestones. Source: ispace

If successful, HAKUTO-R will also become the first commercial spacecraft ever to make a controlled landing on the moon.

After landing, the UAE’s Rashid rover will be deployed from the HAKUTO-R lander. In addition, the lander will deploy an orange-sized sphere from the Japanese Space Agency that will transform into a small wheeled robot that will move about on the lunar surface. 

3. UAE’s Rashid lunar rover

The Emirates Lunar Mission (ELM) team at the Mohammed bin Rashid Space Centre (MBRSC) is responsible for designing, manufacturing and developing the rover, which is named Rashid after Dubai’s royal family.  The ELM website is here: https://www.mbrsc.ae/service/emirates-lunar-mission/

The Rashid rover weighs just 22 pounds (10 kilograms) and, with four-wheel drive, can traverse a smooth surface at a maximum speed of 10 cm/sec (0.36 kph) and climb over an obstacle up to 10 cm (3.9 inches) tall and descend a 20-degree slope. 

Rashid rover general arrangement. Source: MBRSC

The Rashid rover is designed to operate on the Moon’s surface for one full lunar day (29.5 Earth days), during which time it will conduct studies of the lunar soil in a previously unexplored area. In addition, the rover will conduct engineering studies of mobility on the lunar surface and susceptibility of different materials to adhesion of lunar particles. The outer rims of this rover’s four wheels incorporate small sample panels to test how different materials cope with the abrasive lunar surface, including four samples contributed by the European Space Agency (ESA).

The diminutive rover carries the following scientific instruments:

  • Two high-resolution optical cameras (Cam-1 & Cam-2) are expected to take more than 1,000 still images of the Moon’s surface to assess the how lunar dust and rocks are distributed on the surface.
  • A “microscope” camera
  • A thermal imaging camera (Cam-T) will provide data for determining the thermal properties of lunar surface material.
  • Langmuir probes will analyze electric charge and electric fields at the lunar surface.
  • An inertial measurement unit to track the motion of the rover.

Mobility and communications tests of the completed rover were conducted in March 2022 in the Dubai desert.

Rashid rover during desert tests. Source: Gulf News (March 2022)

The Ottawa, Ontario company Mission Control Space Services has provided a deep-learning artificial intelligence (AI) system named MoonNet that will be used for identifying geologic features seen by the rover’s cameras. Mission Control Services reports, “Rashid will capture images of geological features on the lunar terrain and transmit them to the lander and into MoonNet. The output of MoonNet will be transmitted back to Earth and then distributed to science team members….Learning how effectively MoonNet can identify geological features, inform operators of potential hazards and support path planning activities will be key to validating the benefits of AI to support future robotic missions.”

This color-coded image is an example of the type of output the MoonNet AI system is expected to produce.
 Source: Mission Control Space Services

4. Landing attempt failed

The Hakuto-R lander crashed into the Moon on 25 April 2023 during its landing attempt.

In May 2023, the results of an ispace analysis of the landing failure were reported by Space.com:

“The private Japanese moon lander Hakuto-R crashed in late April during its milestone landing attempt because its onboard altitude sensor got confused by the rim of a lunar crater. the unexpected terrain feature led the lander’s onboard computer to decide that its altitude measurement was wrong and rely instead on a calculation based on its expected altitude at that point in the mission. As a result, the computer was convinced the probe was lower than it actually was, which led to the crash on April 25.”

“While the lander estimated its own altitude to be zero, or on the lunar surface, it was later determined to be at an altitude of approximately 5 kms [3.1 miles] above the lunar surface,” ispace said in a statement released on Friday (May 26). “After reaching the scheduled landing time, the lander continued to descend at a low speed until the propulsion system ran out of fuel. At that time, the controlled descent of the lander ceased, and it is believed to have free-fallen to the moon’s surface.”

On 23 May 2023, NASA reported that the its Lunar Reconnaissance Orbiter spacecraft had located the crash site of the UAE’s lunar spacecraft. The before and after views are shown in the following images.

Hakuto-R crash site, before (left) and after (right) the crash. Source: NASA/GSFC/Arizona State University

5. The future

ispace future lunar plans

ispace reported, “ispace’s SERIES-2 (S2) lander is designed, manufactured, and will be launched from the United States. While the S2 lander leverages lessons learned from the company’s SERIES-1 (S1) lander, it is an evolved platform representing our next generation lander series with increased payload capacity, enhanced capabilities and featuring a modular design to accommodate orbital, stationary or rover payloads.”

Ispace was selected through the Commercial Lunar Payload Services (CLPS) initiative to deliver NASA payloads to the far side of the Moon using the SERIES-2 (S2) lander, starting in 2025.

UAE future lunar plans

In October 2022, the UAE announced that it was collaborating with China on a second lunar rover mission, which would be part of China’s planned 2026 Chang’e 7 lunar mission that will be targeted to land near the Moon’s south pole. These plans may be cancelled after the U.S. applied export restrictions in March 2023 on the Rashid 2 rover, which contains some US-built components. The U.S. cited its 1976 International Traffic in Arms Regulations (ITAR), which prohibit even the most common US-built items from being launched aboard Chinese rockets.

6. For more information

Future missions

Video

Israel Poised to Become the 4th Nation to Land a Spacecraft on the Moon

All Posts, Spacecraft and Missions, , , , , ,

Peter Lobner, updated 12 April and 14 May 2019

In my 6 August 2016 post, “Lunar Lander XCHALLENGE and Lunar XPrize are Paving the way for Commercial Lunar Missions,” I reported on the status of the Google Lunar XPrize, which was created in 2007 to “incentivize space entrepreneurs to create a new era of affordable access to the Moon and beyond,” and actually deliver payloads to the Moon.  In addition, the lunar payloads were tasked with moving 500 meters (1,640 feet) after landing and transmitting high-definition photos and video back to Earth. Any additional science data would be a plus.  In January 2018, after concluding that none of the remaining competitors could meet the extended 31 March 2018 deadline for landing on the Moon, the Google Lunar XPrize competition was cancelled, with the $30M in prizes remaining unclaimed. You can read this post here:

https://lynceans.org/all-posts/lunar-lander-xchallenge-and-lunar-xprize-are-paving-the-way-for-commercial-lunar-missions/

One of the competing Lunar XPrize teams was SpaceIL from Israel, which was developing a small lunar spacecraft named Beresheet (originally named Sparrow), that was designed to hitch a ride into an elliptical Earth orbit as a secondary payload on a SpaceX Falcon 9 commercial launch vehicle and then transfer itself to a lunar orbit and finally land on the Moon.  

The SpaceIL lunar landing program continued after cancellation of the Lunar XPrize competition.  You’ll find details on the SpaceIL lunar program here:

http://www.visit.spaceil.com

As completed by SpaceIL and Israel Aerospace Industries (IAI), the Beresheet spacecraft has a launch mass of 600 kg (1,323 pounds) and a landing mass of about 180 kg (397 pounds).  The lander carries imagers, a magnetometer, a laser retro-reflector array (LRA) provided by the U.S. National Aeronautics and Space Administration (NASA), and a time capsule of cultural and historical Israeli artifacts.

The Beresheet spacecraft.  Source:  by Abir Sultan/EPA-EFE

After landing on the Moon, the Beresheet spacecraft electronic systems are expected to remain operational only for a few days. The original Lunar XPrize plan to demonstrate mobility and move the spacecraft after landing on the Moon has been dropped.  The laser retro-reflectors will enable the spacecraft to serve as a fixed geographic reference point on the lunar surface long after the mission ends.While not designed for a long lunar surface mission, Beresheet is intended to demonstrate advances in technology that enable low-cost, privately-funded missions to another body in the solar system.  Beresheet was developed and constructed for about $100 million.  You’ll find more information on the Beresheet spacecraft here:

https://directory.eoportal.org/web/eoportal/satellite-missions/content/-/article/beresheet-lunar-lander

Beresheet was launched from Cape Canaveral, FL on 21 Feb 2019 into an initial elliptical Geosynchronous Transfer Orbit (GTO) that was dictated by the requirements for the Falcon 9 booster’s primary payload. Once in GTO, Beresheet used its small rocket engine to gradually raise its orbit to a 400,000 km (248,548 mile) apogee to intersect the Moon’s circular orbit, and phase its orbit so the spacecraft passed close to the Moon and could maneuver into a transfer orbit and be captured by the Moon’s gravity.  This mission profile is illustrated below.

Source:  SpaceIL

You can watch a short video with an animation of this mission profile here:

On 4 April, SpaceIL tweeted: “Critical lunar orbit capture took place successfully. #Beresheet is now entering an elliptical course around the #moon, as we get closer to the historical landing #11.4″

After circularizing its lunar orbit, Beresheet is scheduled to land on the Moon on 11 April 2019.  NASA is providing communications support during the mission.

Artist’s concept of the Beresheet lander on the lunar surface.  
Source: Israel Aerospace Industries(IAI)

On 28 March, the X Prize founder and Executive Chairman Peter Diamand announced that, if the lunar landing is successful, the Foundation would award a $1 million “Moonshot Award” to Beresheet’s builders. Peter Diamand noted, “SpaceIL’s mission represents the democratization of space exploration.”

Best wishes to the SpaceIL team for a successful lunar landing.  If successful, Israel will become the 4thnation, after Russia (Soviet Union), USA and China to land spacecraft on the Moon.

Update 12 April 2019:  Beresheet spacecraft crashed during Moon landing attempt

The Beresheet spacecraft successfully initiated its descent from lunar orbit on 11 April 2019.  Initial telemetry indicated that the landing profile was proceeding as planned.

Beresheet status graphic during landing sequence.  
Source: IAI / SpaceIL
Photo taken from Beresheet during the descent, from an altitude of about 22 km. Source:  IAI / SpaceIL

Communications with the spacecraft was lost when Beresheet was about 489 feet (149 meters) above the moon’s surface.  Opher Doron, the general manager of IAI, reported during the live broadcast, “We had a failure in the spacecraft; we unfortunately have not managed to land successfully.” 

X Prize founder and Executive Chairman Peter Diamandis announced that SpaceIL and IAI will receive the $1 million Moonshot Award despite failing to make the planned soft landing on the Moon.

Update 14 May 2019:  Preliminary failure analysis

On 17 April 2019, SpaceIL announced that its preliminary failure analysis indicated that a software command uploaded to restart a failed inertial measuring unit (IMU) may have started a sequence of events that ultimately shut down the main engines prematurely during the landing attempt, resulting in the crash of the Beresheet spacecraft.

Morris Kahn, SpaceIL’s primary source of funding, pledged that the team will try again for a Moon landing with a new spacecraft dubbed “Beresheet 2.0,” which will incorporate lessons learned from the first lunar landing attempt.

For more information on the Beresheet mission, see The Planetary Society mission report at the following link:

http://www.planetary.org/explore/space-topics/space-missions/beresheet.html