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Questions tagged [raw-data]

Questions about primary, unprocessed measurements and about where to find them.

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3 votes
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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 ...
requiemman's user avatar
5 votes
1 answer
73 views

Query spectral type for absolute magnitude

I'm working on a project with stars where, given their spectral type (such as B0IV), I want to be able to know its approximate absolute magnitude. I have searched online and found data sources like ...
J minding's user avatar
2 votes
1 answer
80 views

How to flatten 3d astronomical coordinates into 2d polar form in Python

I first asked this at Stack Overflow but got redirected here I am making a 2d simulation of the solar system. For that you need a starting point for all planets. Right now I am storing that data in ...
Tmpecho's user avatar
  • 45
1 vote
0 answers
51 views

Looking for data and models for events of Sun and Moon apparent motion in distant past?

For the current Julian Era (from 1, 1, 4713 BCE to modern day), I am looking for a raw data tables or a model that allows to predict the following events related to apparent motion of Sun and Moon: ...
Suiinditor Impudens's user avatar
0 votes
0 answers
18 views

How to calculate 2-10keV Flux or Luminosity by Power Law from 0.2-12keV with known $\Gamma = 1.7$

I have $0.2-12$keV flux observations, distance observations and $\Gamma =1.7$. I want to apply power law to calculate 2-10keV flux. How can i do that?
Ege Tunç's user avatar
0 votes
0 answers
16 views

What is a good resource for finding accurate apparent magnitudes stars in different filters?

I am unable to find this information online, does anyone know of a database, book, or website that contains all of the B-band, V-band, I-band etc.... apparent magnitudes for each star? Thanks for any ...
Thanos's user avatar
  • 21
1 vote
0 answers
39 views

CMB maps analysis (Planck, ESA, FITS)

I wanted to analyze Planck mission FITS files and was wondering about the parameters. So the map uses color coding for temperature-based anisotropies right? So the maximum angular resolution is ...
user2820052's user avatar
1 vote
0 answers
55 views

Large dataset of galaxies redshift, mass, and metallicity?

I'm curious if there is a standard dataset for redshift-mass or redshift-metallicity like there is for redshift-distance with Pantheon+SH0ES. https://github.com/PantheonPlusSH0ES/DataRelease/tree/main/...
MikeHelland's user avatar
3 votes
1 answer
574 views

Where can I download the historic sunrise and sunset times for a location?

As the question indicates, I would like to know the sunrise and sunset times of a location. This is to evaluate the impact of day and night variations of a time series. Is there a way to download this ...
No-Time-To-Day's user avatar
0 votes
0 answers
29 views

What are examples of spatio-temporal data sets such that subjects are observed only once and are, thus, indexed in time only once?

What are examples of spatio-temporal data sets such that subjects are observed only once and are, thus, indexed in time only once? Here's a hypothetical example in the ecology realm: consider a tree's ...
Ron Snow's user avatar
  • 101
4 votes
1 answer
178 views

Where can I get raw photos of planets clicked by HST, Voyager 1 and 2, Cassini for Saturn and Galileo for Jupiter?

I intend to process RAW images of planets clicked by HST,Voyager 1 and 2, Cassini and Gallileo spacecrafts using a few softwares. I am in search of where I can get these raw images from.
Dhruv Nayak's user avatar
3 votes
1 answer
77 views

Solar-winds: public NOAA data

I was searching for interesting data from space recently, and stumbled onto https://www.swpc.noaa.gov/. The long and short is that they offer some interesting solar wind data Of particular interest to ...
Kai Harris's user avatar
7 votes
3 answers
1k views

Where can the public stream live astronomical data from?

I am looking to find some resources on public streaming of astronomical data. Does such a thing exist? In my explorations so far, I came across lots of nice answers linking to data in archives, but no ...
Kai Harris's user avatar
2 votes
0 answers
40 views

Is there any open data base for raw spectroscopy data?

I'm msc. student in physics and will start my thesis in a month. We are in search of a topic with my thesis professor and we talked about many ideas. After all, "what will this give us ...
Ege Tunç's user avatar
2 votes
0 answers
64 views

What is a good 3D scatter plot tool?

I am currently doing an Astronomy internship at an institute and one of my tasks includes preparing a 3D scatterplot tool for the Chirp mass, effective spin and the redshift for binary mergers (NS-NS, ...
noob anomaly's user avatar
6 votes
1 answer
90 views

Where can I find datasets for all confirmed exoplanets, terrestrial exoplanets, and Super-Earth exoplanets?

The NASA Exoplanet Archive has a Planetary Systems dataset offers celestial mechanical data for 5,197 confirmed exoplanets. The Exoplanets Catalog classifies these exoplanets as terrestrial, super-...
Tom Lever's user avatar
  • 191
2 votes
0 answers
91 views

SDSS and DESI - How much variation in sky location?

I am trying to cross match a catalog derived from SDSS-MaNGA(self) with a catalog derived from DESI (Yang+2021). I am using TOPCATs Sky Algorithm, based on RA and Dec similarities to perform the ...
haricash's user avatar
2 votes
0 answers
32 views

Database of distant stars

I'm writing a report on using machine learning techniques in astrophysics. I'd like to perform 3 tasks: Generating a Hertzsprung-Russel diagram and clustering the results into the main types of stars ...
John Miller's user avatar
2 votes
0 answers
79 views

How to obtain Magellan 6.5m telescope data?

I research about Bullet cluster. Because Clowe et al. (2006) used Magellan's IMACS data, So I entered the SAO Magellan data archive site. But I could not find the method to obtain the data. Is there ...
BAO's user avatar
  • 357
-3 votes
2 answers
104 views

What are the Rules of Significant Figures, Precision, and Uncertainty, Strictly Speaking? [closed]

In the physical sciences (which are physics, chemistry, astronomy, materials science, etc.), we learned that the uncertainty is +/- the smallest unit (which is 1) of the last significant figure if the ...
CoastCity Lapse 00crashtest's user avatar
3 votes
1 answer
180 views

Method to get data from NED IPAC and NVSS, without manually giving RA/dec input

I am collecting the radio flux data at 1.4Ghz frequency for all 1544 Markarian Galaxies for a study. For that, I have to first put the names of these Markarian galaxies in NED IPAC and from there ...
Mirae's user avatar
  • 65
6 votes
1 answer
304 views

Where can I find online-available datasets for the KIC 8462852?

The question has been asked here seven years ago but unfortunately did not receive an answer perhaps because at that time it would be reasonable to assume that no available dataset might have made it ...
SPARSE's user avatar
  • 163
4 votes
0 answers
28 views

Limb darkening coefficients for BRITE and Johnson:V passbands

Where to find limb darkening coefficients for BRITE and Johnson:V passbands, please? Do any tables exist or are there any relations for their guest? Many thanks
Carly's user avatar
  • 115
4 votes
1 answer
68 views

Which galaxies have the most well known / estimated dark matter halos?

For this I guess you need accurate circular velocity measurements of the stars in the galaxy a decent luminosity profile for the galaxy some analysis which looks at the discrepancy between the two ...
Suzie Q.'s user avatar
4 votes
1 answer
96 views

Examples of the oldest "precoveries"; objects that were first discovered in recent data but then looking back are confirmed in much older data

Example from Ars Technica's Radio astronomers scouring the archives spotted black hole devouring a star: Astronomers found another TDE in 2020 (dubbed AT 2019qiz), which provided the first direct ...
uhoh's user avatar
  • 30.6k
2 votes
2 answers
820 views

Downloadable GCNS (Gaia Catalog of Nearby Stars)

Has Gaia made the "Gaia Catalog of Nearby Stars" (GCNS) available for offline processing? Ideally I'd like the full 100pc data set in a format that doesn't require any specialized libraries ...
BCS's user avatar
  • 253
2 votes
1 answer
71 views

Syntax for the naming of TESS data repository

I'm following this and downloading & displaying the TESS image file in matplotlib. That works great. Now I'm trying to write myself a wrapper that allows me to specify in some config files what I ...
Francky_V's user avatar
  • 215
1 vote
1 answer
144 views

Finding raw HST data for WFC or HRC?

I'm doing a project that requires raw .fits images that contain a certain galaxy from the HST (F814W filter). I've been able to find the calibrated images of the WFC view using the MAST data portal. ...
hollowhills's user avatar
2 votes
1 answer
1k views

How to access the raw time-series dataset of GOES X-Ray Flux?

I would like to access the time-series dataset of X-Ray Flux obtained by GOES. I expect that the flux units to be Watts / square-meter; this is because of the figure below (obtained from this Nature ...
mikeysflix's user avatar
2 votes
1 answer
43 views

Mars satellite data similar to Sentinel-2?

For Earth, there is lot of free satellite data easily available. For example, I can download the Sentinel-2 optical images freely from https://scihub.copernicus.eu/. What would be the closest thing ...
user3704545's user avatar
1 vote
0 answers
57 views

How to properly compare radio to optical/NIR images?

I mainly work with radio continuum data and recently I started working on some HST hydrogen recombination line datasets to compare with the radio data that I have, but I'm very confused about what is ...
spacedog's user avatar
1 vote
0 answers
42 views

How to find published data with the article?

How to find data published with an article, please? For instance, let us consider this paper. There are data products and the link to SIMBAD on the right. Then, the table with objects appears, but ...
Archie's user avatar
  • 11
4 votes
2 answers
632 views

Is there a clearer version of Giuseppe Piazzi's complete set of observations for the discovery of Ceres?

The image below comes from the paper Giuseppe Piazzi and the Discovery of Ceres G . Foderà Serio, which is too blurry to read. Is there a clearer version of this table or digital tabular form like ....
JJJohn's user avatar
  • 143
5 votes
2 answers
318 views

Where to find data on orbits of exoplanetary systems?

I hope this is the correct place to ask this question which entails asking if there is a database much like the JPL NASA one for the solar system, but for exoplanetary systems? I am conducting an n ...
Harry Spratt's user avatar
1 vote
0 answers
31 views

Frequency vs Flux data for Gamma Ray Bursts (GRB190114C)

I am working on a research project to prove Synchrotron-Self-Compton radiation through the case study of GRB190114C and am not able to find data for the frequency spectrum even though all telescoped ...
astro_help's user avatar
2 votes
1 answer
902 views

Query with Gaia: I have a list of 1000+ source_id's. How do I find the associated stars and their data?

I have a table of around 1700 source id's from gaiadr2 (in csv format). I would like to see the data that Gaia has for each star in a new table. I'm really struggling to figure out how to do this ...
Joshua Yielding's user avatar
7 votes
1 answer
266 views

Where can I find Arecibo's data archive?

Does anyone know where I can find Arecibo's historical data? After much searching, I can find neither hide nor hair of it. It doesn't help that the search results are completely dominated by the news ...
franz_lyre's user avatar
6 votes
1 answer
165 views

Is the SETI's `needle-sharp at 982.002 megahertz` signal accessible?

In April-May 2019, the Parkes radio telescope, in Australia, received a weird signal while surveying Proxima Centauri. Is this signal available, ideally in some digitalized form? Where could I ...
Vorac's user avatar
  • 169
3 votes
1 answer
54 views

Does a replacement exist for Dexter? (A tool that reconstructs data from a pdf of a graph)

Dexter was a tool from the German Astrophysical Virtual Observatory, made by the Center for Astronomy of Heidelberg University (ZAH). It was able to reconstruct data from a graph if you provided a pdf ...
Capp's user avatar
  • 31
5 votes
2 answers
418 views

Data to "check" Kepler’s first law

I want to "check" Kepler’s first law by using real data of Mars. From the equation of the ellipse, I derived $$\frac{1}{r}=\frac{a}{b^2}+\frac{a}{b^2}\cdot\epsilon\cdot\cos(\varphi),$$ where ...
Joe_base's user avatar
1 vote
0 answers
54 views

Data for "milky way outline" [duplicate]

I am trying to make a software generated star chart, and want to include the outline of the milky way as shown in many such star charts. Does anyone have any idea where to obtain the data for that? ...
hamayoun's user avatar
  • 283
0 votes
1 answer
274 views

Is there a website out there where I can find/compare data on stellar parameters for the brightest stars?

I'm looking for some kind of catalog/repository which lists stellar parameters (e.g. mass, radius, temperature) in a similar vein to NASA's Exoplanet Catalog (but except for stars), for the brightest ...
Will's user avatar
  • 31
6 votes
1 answer
796 views

How to search SIMBAD using identifiers?

I'm trying to get some data about the moon from SIMBAD (specifically, radiation spectrum in certain wavelengths), and I encountered an unexpected problem: I can't find the Moon. In SIMBAD, I can ...
Yoav Zack's user avatar
  • 163
3 votes
0 answers
103 views

Understanding WISE acronyms

I've enoucntered many acronyms related between them, like AllWISE, WISE, NEOWISE, CatWISE, WISEA, WISEAR, WISEAF, WISEU, WISEP, WISEPA, WISEPC, WISEF, WISEPF, WISER, WISEWF, WISET, WISETF, WISENF... ...
Swike's user avatar
  • 3,926
1 vote
0 answers
381 views

Wavelength Calibration in Python - Line Identification algorithm

I was asked to develop a data reduction pipeline for a telescope and am facing a problem. I have the standard lamp spectra and need to identify the emission lines in order to find a wavelength ...
KurasaHakai's user avatar
2 votes
0 answers
57 views

Is science data from astronomical telescopes analyzed with something analogous to "optical character recognition"?

Do people manually input the science data from telescopes into databases or does some software automatically collect the data from telescopes and put it in servers and databases? I'd imagine there's ...
user avatar
4 votes
1 answer
132 views

Moon Images from Earth

Is there a resource online of images of the moon (taken from the Earth) suitable for processing with a computer: I.e. taken with the same camera, optics, location, etc, over months/years? Purpose: ...
lionfish's user avatar
2 votes
1 answer
198 views

Why do radio telescopes, but not shorter wavelengths, have this Big Data problem?

Only with new radio telescope arrays like ALMA and SKA, have I heard of this "problem" with too much data come up. Too big to store. That one cannot archive it all for future studies, but that one has ...
LocalFluff's user avatar
  • 11.4k
1 vote
0 answers
168 views

Open dataset from antenna array

I am looking for a raw radio-astronomic antenna array dataset of relatively modest size (on the order a few MB, or even less), to evaluate a data processing algorithm. The dataset ideally should be ...
Mikhail Kagalenko's user avatar
4 votes
1 answer
2k views

Is there any site with telescopes data?

Is the data gathered from telescopes "open source"? If so, is there any website that group it all?
Caio Keto's user avatar
  • 143