Yutu Moon Rover Sets Sail for Breathtaking New Adventures

China’s 1st Moon rover ‘Yutu’ embarks on thrilling adventure marking humanity’s first lunar surface visit in nearly four decades. Yutu portrait taken by the Chang’e-3 lander. Credit: CNSA/CCTV
See below Yutu’s departing portrait of Chang’e-3 lander emblazoned with Chinese national flag
Story updated[/caption]

China’s now famous ‘Yutu’ moon rover has set sail for what promises to be breathtaking new adventures on Earth’s nearest neighbor, after completing a final joint portrait session with the Chang’e-3 lander that safely deposited her on the lunar surface only a week ago.

Yutu’s upcoming journey marks humanity’s first lunar surface visit in nearly four decades since the Soviet Union’s Luna 24 sample return vehicle visited. America’s last lunar landing mission with the Apollo 17 astronauts departed 41 years ago on Dec. 14, 1972.

The Chang’e-3 mothership and Yutu rover have resumed full operations after awakening from a sort of self induced slumber following commands from Mission Control back in Beijing.

The lander and rover finished up their 5th and final dual picture taking session – in living lunar color – on Sunday, Dec. 22, according to CCTV, China’s state run broadcast network.

“Ten pictures have been taken at five spots so far, and all of them are better than we expected,” said Wu Weiren, chief designer of the China Lunar Probe Program, to CCTV.

See the newly released portraits from photo session 5 – above and below.

The rover and lander have taken photos of each other for the fifth and final time. The back side of Chang’e 3 lander as seen by rover Yutu with Chinese national flag at left imaged for the first time.

After arriving on the moon, Yutu and the lander took an initial pair of portraits of one another. Read my earlier report – here.

Yutu was then directed to travel in a semicircular path around the lander and to the south, making tracks several centimeters deep into the loose lunar regolith.

But within two days of the historic Dec. 14 touchdown, the two spacecraft took a four-day break that lasted from Dec. 16 to Dec. 20, during which China’s space engineers shut down their subsystems, according to China’s State Administration of Science, Technology and Industry for National Defense (SASTIND).

Portion of 1st panorama around Chang’e-3 landing site after China’s Yutu rover drove onto the Moon’s surface on Dec. 15, 2013. The images were taken by Chang’e-3 lander following Dec. 14 touchdown. Panoramic view was created from screen shots of a news video assembled into a mosaic. Credit: CNSA/CCTV/screenshot mosaics & processing by Marco Di Lorenzo/Ken Kremer See the complete panorama below

The vehicles took a ‘nap” to deal with direct solar radiation that significantly raised their temperatures. Yutu’s sunny side exceeded 100 degrees centigrade while the shaded side was simultaneously below zero, reported SASTIND.

“The break had been planned to last until Dec. 23, but the scientists decided to restart Yutu now for more research time, based on the recent observations and telemetry parameters,” said Pei Zhaoyu, spokesman for the Chinese lunar program, according to China’s Xinhua state news agency.

Both robots then snapped additional photos of one another during the traverse from each of five specific and preplanned locations.

See accompanying traverse map below – written in Chinese.

Path of Yutu rover from Dec. 14 landing to Dec. 21. Landscape textured with Chang’e 3 imagery from space and ground. Credit: CNSA/BACC

These images taken by Yutu were designed to show the 1200 kg Chang’e-3 lander from the front, side and back sides as it drove around the right side – for better illumination – at a distance of about 10 meters.

The final image of the Chang’e-3 lander taken by Yutu also captured China’s national flag emblazoned on the lander for the first time, since this was the first time it was in view of the rover’s camera eyes.

See the accompanying traverse graphic here – written in Chinese.

Yutu and the Chang’e 3 lander were scheduled to take photos of each other from locations outlined in this artists concept. Credit: China Space

Having fulfilled the last of their joint tasks, the two spacecraft can therefore each begin their own lunar exploration missions, working independently of one another exactly as planned from the outset of China’s inaugural moon landing feat.

Yutu will depart the Chang’e-3 landing zone forever and begin its own lunar trek that’s expected to last at least 3 months – and perhaps longer if it’s delicate electronic components survive the moon’s utterly harsh and unforgiving space environment.

“They will begin to conduct scientific explorations of the geography and geomorphology of the landing spot and nearby areas, and materials like minerals and elements there. We will also explore areas 30 meters and 100 meters beneath the lunar soil. The exploration will continue longer than we planned, because all the instruments and equipments are working very well,” noted Wu Weiren.

The robotic pair of spacecraft safely soft landed on the Moon on Dec. 14 at Mare Imbrium, nearby the Bay of Rainbows, or Sinus Iridum region.

Barely seven hours after the history making touchdown, ‘Yutu’ was painstakingly lowered from its perch atop the lander and then successfully drove all six wheels onto the moon’s surface on Dec. 15.

The Chang’e-3 mothership captured a panoramic view of the stark lunar terrain surrounding the spacecraft after ‘Yutu’ drove some 9 meters away from the lander.

See the eerie panoramic view of the landing site showing Yutu’s first moments on the alien lunar surface in my prior story – here.

See the dramatic video with an astronauts eye view of the lunar descent and touchdown in my prior story – here.

1st panorama around Chang’e-3 landing site after China’s Yutu rover drove onto the Moon’s surface on Dec. 15, 2013. The images were taken by Chang’e-3 lander following Dec. 14 touchdown. Panoramic view was created from screen shots of a news video assembled into a mosaic. Credit: CNSA/CCTV/screenshot mosaics & processing by Marco Di Lorenzo/Ken Kremer

The 120 kg Yutu rover is almost the size of a golf cart. It measures about 1.5 m x 1 m on its sides and stands about 1.5 m (nearly 5 feet) tall – virtually human height.

Yutu, which translates as ‘Jade Rabbit’ will use its suite of four science instruments to survey the moon’s geological structure and composition to locate the moon’s natural resources for use by potential future Chinese astronauts, perhaps a decade from now.

Stay tuned here for Ken’s continuing Chang’e-3, LADEE, MAVEN, MOM, Mars rover and more news.

Ken Kremer [caption id="attachment_107402" align="aligncenter" width="580"] Landing site of Chinese lunar probe Chang’e-3 on Dec. 14, 2013. [/caption]

Ken Kremer

Dr. Ken Kremer is a speaker, research scientist, freelance science journalist (KSC area,FL) and photographer whose articles, space exploration images and Mars mosaics have appeared in magazines, books, websites and calendars including Astronomy Picture of the Day, NBC, FOX, BBC, SPACE.com, Spaceflight Now, Science and the covers of Aviation Week & Space Technology, Spaceflight and the Explorers Club magazines. Ken has presented at numerous educational institutions, civic & religious organizations, museums and astronomy clubs. Ken has reported first hand from the Kennedy Space Center, Cape Canaveral, NASA Wallops, NASA Michoud/Stennis/Langley and on over 80 launches including 8 shuttle launches. He lectures on both Human and Robotic spaceflight - www.kenkremer.com. Follow Ken on Facebook and Twitter

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