ًWho will give me new data about Asteroid Apophis 99942?

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View

How to perform analysis on Chandrayaan-2 DFSAR data using MATLAB or other languages like python?

Kindly suggest any libraries/Books/platforms/tutorials for the same.

04 February 2021 1,708 2 View

Absorption coefficient of atmosphere at sea level versus wavelength?

I'm looking for some raw data for the transmission through the air in my lab, specifically in the MIR region. I've found a lot of data online that gives transmission vs wavelength, but the units...

22 December 2020 9,039 2 View

Quantum information & Black Hole information Paradox?

If quantum information is stored on the Event horizon of the black hole (according to the Holographic principle), What happens to information when black holes evaporate or merge?

02 December 2020 10,029 5 View

Possibility of using a reference frame to account for dark matter, or summing the kinetic energies in a galaxy?

Dark matter is some extra energy that we observe which bends spacetime such that a star orbiting a galaxy will appear to have escape velocity but will remain in a stable orbit. When solving for...

20 November 2020 1,350 4 View

How and why are stellar evolution and astrophysics different?

Physics is one of the physical sciences. The two other physical sciences are chemistry and astronomy. Astrophysics is the branch of physics that deals with space and celestial bodies.

04 August 2020 434 18 View

Determining Bolometric Magnitudes using light curves?

I'm currently working on SRc Alf Ori and its Bolometric Magnitudes. I do have the light curve estimates (From AAVSO but the SDSS doesn't seem to have an available data set for Alf Ori) and I'm...

03 August 2020 2,816 1 View

IDL code for Hapke model?

Can anybody please share the IDL source code for Hapke photometric modeling? Thank you,

22 February 2020 7,661 1 View

How do stable isotopes (not radioactive) form in stars and other bodies in the universe?

I was once told that stable isotopes of lighter elements such as H, N C , etc are found in stars, planets, etc. Can anyone suggest any literature which talks about the formation of these isotopes?

15 December 2019 6,535 3 View

How do stable isotopes (not radioactive) form in stars and other bodies in the universe?

I was once told that stable isotopes of lighter elements such as H, N C , etc are found in stars, planets, etc. Can anyone suggest any literature which talks about the formation of these isotopes?

11 December 2019 5,497 3 View

S. Ulamec

You can check:

http://neo.ssa.esa.int/search-for-asteroids?sum=1&des=99942 Apophis

But I am not sure, what kind of new data you are looking for?

Cheers, Stephan

Abdulatheem Mushtaha

Thanks Mr S.Ulamec , I want to know if Apphis will attack our earth or not, if yes. I need the real date., I mean it,s risk

The Dates were 2019 and 2016.

Recent observations have basically ruled out the risk that Apophis will actually hit the Earth.

Thanks again Mr S. Ulamee .Our prophet Mogammed mentioned that a huge exploion will happen in future in the mid. of Ramadan month, so I,ll try to fing the true, or the rellation between Apohpis and that matter, thanks again Dr S. Ulamec.

from days some one sent this answer:

I don't work for Nasa, but the latest news- from news bulletins - is that the 2036 encounter would be safe, but there will be some effects by the close encounter of 2029. If some people know more, they will not say in public.

What do you say Dr< S. Ulamec?