physics

Noor (satellite)

Noor (satellite) is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Noor (satellite) rather than just read about it. In short: Noor (also spelled Nour, Persian: نور, lit. 'Light') is a class of Iranian military Earth-imaging CubeSat. Three Noor satellites have been launched from the Shahroud Space Center in Shahrud Desert in Iran into low Earth orbit aboard three-stage Qased (lit. 'message') space-launch vehicles.

Key takeaways

Noor (satellite) belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Noor (satellite) to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Noor (satellite) from memory before moving on to harder problems.

Reference excerpt

Noor (also spelled Nour, Persian: نور, lit. 'Light') is a class of Iranian military Earth-imaging CubeSat. Three Noor satellites have been launched from the Shahroud Space Center in Shahrud Desert in Iran into low Earth orbit aboard three-stage Qased (lit. 'message') space-launch vehicles. Noor-1, the first Iranian military satellite, was launched on 22 April 2020 to a 425 kilometer orbit and decayed from orbit on 13 April 2022 marking a lifespan of one year, eleven months, and nine days, just past its expected one year service life. Noor-1 carried a photo of former Quds Force Commander Qassem Soleimani and a Quranic verse about overcoming adversaries. Noor-2, the second satellite of the Noor class, was launched on 8 March 2022 (during the Sha'baniyah holiday) to a 500 kilometer orbit. It has a resolution of 12 to 15 meters, a weight of 17 kg, a swath width of 25 km and 6 passes. Noor-2 continues to provide the Islamic Revolutionary Guard Corps with low-resolution overhead imagery. Noor-3, also called Najm is the third satellite of the Noor class, was launched on a Qassed launcher on 27 September 2023 to a 450 kilometer orbit. It has a weight of 24 kg with a resolution of 6 to 4.8 meters. According to the Space Commander of the IRGC Aerospace Force, the Noor 3 satellite was stabilized in 1.5 hours and the process it took in the Noor 1 satellite was done automatically in 1 hour in the Noor 3 satellite.The camera used in Noor 3 satellite has up to 2.5 times better photo accuracy than Noor 2. He also added, "In the field of defense, we can use the satellite system for intelligence elites, command and control, and for guiding guided equipment". The Noor satellite program is a unique development for Iran as it was the first satellite to be developed and launched by the IRGC instead of the Iranian Space Agency.

Reaction

Iran IRGC Commander-in-Chief General Hossein Salami remarked "Today, the world’s powerful armies do not have a comprehensive defense plan without being in space. Achieving this superior technology, which takes us into space and expands the realm of our abilities, is a strategic achievement."

United States On April 22, 2020 U.S. Department of Defense acknowledged that Iran successfully launched its first military satellite. Senior Pentagon officials called Iran's satellite launch a provocation. General John Hyten, vice chairman of the Joint Chiefs of Staff, stressed on the Qased satellite carrier technology, saying that "when you have a missile capable of going a very long way... it means that [Iran] has the ability once again to threaten their neighbors, our allies". The satellite itself, however, was dismissed by Space Force General John W. Raymond as "a tumbling webcam in space; unlikely providing intel." Then President Donald Trump said that the satellite launch is not an advancement on the Iran's missile program and the showcasing "was only for television," while the US is watching Iran very closely.

France The French Foreign Ministry condemned Iran's launch of a military satellite into orbit. Concurring with the United States' accusations that the same development would contribute to Iran's offensive ballistic missile program, the Foreign Ministry said "The Iranian ballistics program is a major concern for regional and international security. It contributes to the destabilization of the region and the rise in tensions."

Russia Russia's Ambassador to the United Nations, Vasily Nebenzia, remarked to the international body "the ongoing attempts of the United States side to deprive Iran of the right to reap the benefits of peaceful space technology under false pretexts are a cause for serious concern and profound regret."

Other Abdel Bari Atwan, the editor-in-chief of Rai al-Youm and Al Quds Al Arabi said that "Iran's recent launched military satellite to space will change the region's equations."

Controversies

On 29 July 2020, Iranian state-owned Fars News Agency published an article headlined "Al-Udeid Air Base Observed with Noor Satellite" claiming to show an overhead image of the United States' Al Udeid Air Base in Doha, Qatar "a gathering place for the CENTCOM terrorist air force" imaged by the Noor-1 satellite. Twitter open-source commentators suggested that the published image was a "recolored Maxar image from Google Earth".

Operation Noor satellites circle the Earth once every 90 minutes. On 10 May 2022, Iranian Minister of Communication and Information Technology, Issa Zarepour published on his Instagram a low-resolution, true-color, overhead image of the U.S. Navy's Fifth Fleet Base in Bahrain taken from the Noor-2 satellite. The minister's account was banned from Instagram hours later.

References

Further reading "Qased launches Noor satellite". SciNews. 22 April 2020. A Qased launch vehicle launched the Noor satellite from Iran, on 22 April 2020. According to official sources, Qased (قاصد) is a "three-stage, solid-propellant launcher" and the Noor ( نور) satellite was placed in a 425-km orbit.

External links Scott Manley (26 April 2020). "Decoding Iran's New 'Qased' Rocket and the 'Noor' Satellite". Scott Manley. Middle East Media Research Institute (22 April 2020), Iranian Report: IRGC Launches "Noor" Multipurpose Military Satellite into Orbit Using Ghasedak Satellite Carrier, MEMRI TV [Video of launch]

Illustrations

Worked examples

Example 1 — a first encounter with Noor (satellite)

Start with the simplest possible case. Write down what Noor (satellite) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Noor (satellite) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Noor (satellite) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Noor (satellite)

In research: Noor (satellite) appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Noor (satellite) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Noor (satellite) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2020 in Iran, April 2020 in Iran, Earth observation satellites, so understanding it makes those chapters shorter.
In everyday life: Look for Noor (satellite) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Noor (satellite) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Noor (satellite) means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Noor (satellite) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Noor (satellite) in simple terms?

Why does Noor (satellite) matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Noor (satellite)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Noor (satellite).