What does the photo of the Earth and the Moon sent back by Tianwen-1 look like? The Tianwen-1 probe took a photo of the Earth and the Moon

What does the photo of the Earth and the Moon sent back by Tianwen-1 look like? The Tianwen-1 probe took a photo of the Earth and the Moon

On July 27, the optical navigation sensor on the Tianwen-1 Mars probe developed by the China Aerospace Science and Technology Corporation took a photo 1.2 million kilometers away from the Earth, saying goodbye to its Earth-Moon home. Tianwen-1 used optical navigation sensors to image the Earth and the Moon, and obtained a clear photo of the Earth and the Moon. In this black-and-white photo, the Earth and the Moon, one large and one small, both in the shape of a crescent, accompany each other in the vast universe.

A probe in space is like a ship sailing on the vast ocean, the difference is that there is no satellite navigation system to guide it after it leaves the earth. Different from traditional radio navigation, optical autonomous navigation can acquire navigation information such as position and speed through image target recognition and feature extraction. This is also one of the important technologies that will support our country's future progress into deeper space.

Based on the precise positioning achieved through ground-based radio navigation, the research and development team of the Eighth Academy of China Aerospace Science and Technology Corporation equipped the probe with optical navigation sensors and conducted engineering verification of optical navigation methods related to deep space exploration. This optical navigation sensor is installed on the probe. It can image Mars as it flies close to Mars, use the Mars images to calculate the centroid position and apparent radius of Mars, and combine it with the estimation algorithm to obtain the real-time position and speed information of the probe relative to Mars. The Earth-Moon imaging was completed by autonomous exposure and photography of the optical navigation sensor.

<<:  How to set prices to achieve the highest profit for products? 5 Win-Win Price Discrimination

>>:  Ten years of promotion, two years of entrepreneurship: From unicorn to the altar, all the experiences and gains and losses are here!

Recommend

If you don’t understand these 6 points, you can’t be creative in advertising

Creativity is definitely the most frequently ment...

This ocean "eater" is even crazier than sharks changing their teeth?

In the world of marine life, sharks are often kno...

【Maomao】28-day short-term hot money training camp-comprehensive class

[Maomao] 28-day short-term hot money training cam...

What is the difference between one, two, and three antennas on a wireless router?

First of all, there is a misunderstanding: the mor...

How to write a community operation plan? I summarized 5 points

Here, I will take the education industry as an ex...

Tencent's "Voice Emoji" is coming: multiple people dub one expression together

[[404298]] On June 4, Tencent Technology (Shenzhe...

Analyze ten product details to see how big manufacturers design!

Preface Meeting user needs and improving user exp...

Schmidt vs. Jobs, Android vs. iOS

[[120647]] The following is excerpted from the ne...

How to enable night mode in earlier versions of Windows 10

Since the first appearance of Win10 system, there...

In late autumn, if you want to "rest", you must know these →

Recently, many places in Beijing, which has enter...