Questions tagged [data-analysis]
Analysis of data is a process of inspecting, cleaning, transforming, and modeling data with the goal of discovering useful information, suggesting conclusions, and supporting decision making.
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Using data from the Fine Guidance System (HST)
Has anyone been able to successfully use data from the Hubble Space Telescope's fine guidance system in order to create light curves?
I found a bunch of older papers that reference this instrument, ...
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cross-matched SDSS-WISE catalog
Please where can I find cross-matched SDSS and WISE dataset for a machine learning project?
(Galaxy-star-qso classification task)
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Computing error bar for vertex of parabola-fit lightcurve
I have a long-term lightcurve for my source, to which I have used orthogonal distance regression to fit a quadratic model [expected flux]=a[year]²+b[year]+c.
Part of our data analysis includes finding ...
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Parameters erroneously measured to be negative
I am interested in physical quantities which are strictly non-negative, but which, due to errors, may realistically be estimated as negative. The only examples I can think of are interstellar ...
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Astronomers need Data Analytics or Data Science?
I am aiming to do my masters in Astronomy, and I would prefer it to be on the data side of it. I am looking to skill-up and am confused if I should take up Data Analytics courses or Data Science ...
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plotting light curve for x ray data
how can I plot the light curve for Chandra X-ray data? I want to extract the counts within the specified energy range from the light curve.
e.g., I have to extract the counts within the energy range ...
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Tiling the sky with astropy-healpix
I have a bunch of files containing sources with galactic l and b values. What I want is to redistribute the sources such that each new file contain sources that fall within 15 degrees of a central l,b ...
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Basics of Tracklet-less Heliocentric Orbit Recovery (THOR) - simple breakdown of how it works?
The New York Times's April 30, 2024 Killer Asteroid Hunters Spot 27,500 Overlooked Space Rocks begins:
With the help of Google Cloud, scientists churned through hundreds of thousands of images of the ...
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How can I use SDSS archive to find the radial velocities of binary stars?
I need to plot a radial velocity curve of a given binary star system, and I think that the SDSS apogee survey has what I need, but I havent had any luck finding anything on it. It this the right tool ...
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Which distortion polynomial does the astrometry.net platesolver use?
I am investigating whether it is feasible to predict the distortion of a widefield image platesolved by Astrometry.net and. its documentation says it uses the Simple Image Polynomial to estimate ...
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How could a Dyson Swarm be detected?
My understanding is that a completed Dyson Sphere would be detectable because we would see a star that seemed to produce only infra-red light, and much less than would be expected from an object of ...
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How can I join as contributor to open source code on GitHub? [closed]
I want to join as a contributor, e.g., making pull or merge requests on GitHub, in an existent open source astronomy project. How do I start? What's the typical scenario? Writing directly to the ...
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How to determine semiamplitude from Julian Date data?
How could I determine semiamplitude from these data for NGC300 X-1 without fitting, only with data of phase and JD? This is a common problem for exoplanets, X-ray binaries and other general binary ...
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On building a compatible pipeline for astrometry using both Gaia or Vera-Rubin's data
As the title states, I'm considering building a pipeline for astrometry to analyze Gaia and Vera Rubin's data.
As, being honest, I have little experience with astrometry, I'm not sure if this is (or ...
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What are These Strange Data Spikes in my Catalog Data?
This question has been completely rewritten as I have found a bit more information and been helped enough to hopefully ask this question better.
Hi everyone. I am an undergraduate pursuing an honors ...
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