#orbits — Public Fediverse posts

New in the #VirtualObservatory: “Classifying Kepler eclipsing binaries method.” by Mondal M. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RASTI/5.G46
#VisibleAstronomy #EclipsingBinaryStars #Orbits

NASA's CAPSTONE 02 mission will fly twin spacecraft in cislunar orbit

Follow us and never miss a story.

https://1ban.news/nasa-three-body-orbits-probes/

#1ban #nasa #three #body #orbits #space

Paper submitted 🎉 #ScienceDancing
Meanwhile, for a second paper I had hoped to submit before summer break, I just discovered something blindingly obvious 😅 Let this be a lesson to you...always plot your #orbits!

New in the #VirtualObservatory: “Stellar rotation in open clusters” by Pancino E. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/711/A67
#VisibleAstronomy #Orbits #OpenStarClusters

The Planetary and Solar System (1716) by Johann Baptist Homann, from Grosser Atlas uber die gantze Welt. Nurnberg.

Source: Library of Congress

Available to buy as a print.

https://pdimagearchive.org/images/af02e6d1-9bdf-4442-be0e-18705945f767

#diagrams #orbits #astronomy #art #publicdomain

The Planetary and Solar System (1716) by Johann Baptist Homann, from Grosser Atlas uber die gantze Welt. Nurnberg.

Source: Library of Congress

Available to buy as a print.

https://pdimagearchive.org/images/af02e6d1-9bdf-4442-be0e-18705945f767

#diagrams #orbits #astronomy #art #publicdomain

New in the #VirtualObservatory: “Wide sdB binaries parameters” by Molina F. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/710/A280
#VisibleAstronomy #Orbits #SpectroscopicBinaryStars

Get ready add to the phrase "cosmic real estate" to your vocabulary!

China launches a new tactic to take on SpaceLink - orbital spectrum squatting - by filing reservations for 244,000 LEO orbital slots with the International Telecommunication Union (ITU).

In doing this, China effectively gains legal priority over those specific radio frequencies and orbital paths - potentially blocking competitors' (SpaceX) LEO deployment plans.

He who owns the most cosmic real estate has an advantage! https://satnews.com/2026/06/15/orbital-paperwork-war-chinas-spectrum-squatting-reserves-244000-satellite-slots-to-combat-spacexs-leo-monopoly/ #Space #China #SpaceX #LEO #ITU #Satelittes #OrbitalDataCenter #Orbits

Get ready add to the phrase "cosmic real estate" to your vocabulary!

China launches a new tactic to take on SpaceLink - orbital spectrum squatting - by filing reservations for 244,000 LEO orbital slots with the International Telecommunication Union (ITU).

In doing this, China effectively gains legal priority over those specific radio frequencies and orbital paths - potentially blocking competitors' (SpaceX) LEO deployment plans.

He who owns the most cosmic real estate has an advantage! https://satnews.com/2026/06/15/orbital-paperwork-war-chinas-spectrum-squatting-reserves-244000-satellite-slots-to-combat-spacexs-leo-monopoly/ #Space #China #SpaceX #LEO #ITU #Satelittes #OrbitalDataCenter #Orbits

New in the #VirtualObservatory: “Study of Gaia binaries with compact companions” by Shahaf S. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/518/2991
#Orbits #StellarMasses #NeutronStars #WhiteDwarfStars

The Solar System (1898) by Agnes Giberne, from The Story of the Sun, Moon, and Stars.

Source: Library of Congress / Internet Archive

https://pdimagearchive.org/images/2468b413-3094-4aeb-b38b-131076355bf9

#moon #planets #orbits #space #astronomy #sun #stars #art #publicdomain

The Solar System (1898) by Agnes Giberne, from The Story of the Sun, Moon, and Stars.

Source: Library of Congress / Internet Archive

https://pdimagearchive.org/images/2468b413-3094-4aeb-b38b-131076355bf9

#moon #planets #orbits #space #astronomy #sun #stars #art #publicdomain

Southern Celestial Hemisphere (1660) by Andreas Cellarius, from Harmonia Macrocosmica.

Source: Stanford University Libraries

Available to buy as a print.

https://pdimagearchive.org/images/f1c68175-7df7-4b34-a1cf-e6ad0d873d49

#maps #astrology #cartography #zodiac #planets #orbits #astronomy #universe #cosmology #celestial #constellations #art #publicdomain

Southern Celestial Hemisphere (1660) by Andreas Cellarius, from Harmonia Macrocosmica.

Source: Stanford University Libraries

Available to buy as a print.

https://pdimagearchive.org/images/f1c68175-7df7-4b34-a1cf-e6ad0d873d49

#maps #astrology #cartography #zodiac #planets #orbits #astronomy #universe #cosmology #celestial #constellations #art #publicdomain

New in the #VirtualObservatory: “Pleiades, Hyades, Blanco 1 rot. periods” by Gorbachev Mark A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/AstL/51.498
#Orbits #VisibleAstronomy #OpenStarClusters #Photometry

New in the #VirtualObservatory: “Wave breaking predictions for hot Jupiters” by Golonka J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/709/A60
#Orbits #VisibleAstronomy #Exoplanets #MultipleStars

Orbits of Nine Comets Captured by Jupiter (1898) by Agnes Giberne, from The Story of the Sun, Moon, and Stars.

Source: Library of Congress / Internet Archive

https://pdimagearchive.org/images/6ac8b80d-735d-41c4-846c-12c6bcc9ba91

#diagrams #planets #orbits #space #astronomy #stars #jupiter #comets #art #publicdomain

Orbits of Nine Comets Captured by Jupiter (1898) by Agnes Giberne, from The Story of the Sun, Moon, and Stars.

Source: Library of Congress / Internet Archive

https://pdimagearchive.org/images/6ac8b80d-735d-41c4-846c-12c6bcc9ba91

#diagrams #planets #orbits #space #astronomy #stars #jupiter #comets #art #publicdomain

New in the #VirtualObservatory: “Binary component masses from Gaia” by Bailer-Jones C.A.L. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/708/A249
#Orbits #StellarMasses #Exoplanets #VisibleAstronomy

Weekly Update from the Open Journal of Astrophysics – 18/04/2026

It is Saturday morning, and therefore time for yet another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 82 and the total so far published by OJAp up to 530.

I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter (which nobody should be using); these announcements also show the DOI for each paper.

The first paper to report this week is “Beyond Spherical geometry: Unraveling complex features of objects orbiting around stars from its transit light curve using deep learning” by Ushasi Bhowmick & Shivam Kumaran (Indian Space Research Institute, Ahmedabad, India). This study uses deep neural networks to predict the shape of objects orbiting stars based on their transit light curves, demonstrating the potential to extract geometric information from these systems. It was published on Monday 13th April in the folder Earth and Planetary Astrophysics and the overlay can be seen here:

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116395992732332356

The second paper for this week, also published on Monday 13th April Apil in the folder but in the folder Astrophysics of Galaxies, is “statmorph-lsst: Quantifying and correcting morphological biases in galaxy surveys” by Elizaveta Sazonova (U. Waterloo, Canada) and an international cast of 18 others. This paper presents an investigation of potential biases in quantitative morphology metrics used in galaxy evolution studies, proposing two new measurements to resolve biases, and provides a related Python package (statmorph-lsst), which can be found here on github.

The overlay for this one is here:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116396069424189312

Next one up, the third paper of the week, one of four published on Friday 17th April, is “Disentangling the galactic and intergalactic components in 313 observed Lyman-alpha line profiles between redshift 0 and 5” by Siddhartha Gurung-López (Universitat de València, Spain) and 7 others based in Spain and Germany. Published in the folder Astrophysics of Galaxies, this paper uses the zELDA package to analyze Lyman-alpha photons from star-forming galaxies, revealing IGM effects dominate Lyman-alpha observability at high redshifts, while galactic outflows become more important at lower z.

The overlay for this one is here:

The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116418831864134501

The fourth paper this week, also published on Friday 17th April is “Using Symbolic Regression to Emulate the Radial Fourier Transform of the Sérsic Profile for Fast, Accurate and Differentiable Galaxy Profile Fitting” by Tim B. Miller (Northwestern University, USA) and Imad Pasha (Yale University, USA). This one is published in the folder Instrumentation and Methods for Astrophysics: it develops an emulator for galaxy profile fitting in Fourier space, improving speed by 2.5 times with minimal accuracy loss, aiding in managing increasing data flow.

The overlay is here:

The finally accepted version of this paper can be found here and the Mastodon announcement follows:

https://fediscience.org/@OJ_Astro/116418855010158656

The fifth paper for this week is “The THESAN project: Lyman-alpha emitters as probes of ionized bubble sizes” by Meredith Neyer (MIT, USA) and 6 others based in the USA, Colombia, Canada, Japan and UK. The study uses THESAN simulations to explore how Lyman-alpha emitters (LAEs) trace ionized bubble sizes during the Epoch of Reionization, providing a framework for interpreting LAE surveys. This was published on Friday 17th April in the folder Astrophysics of Galaxies.

The overlay for this one is here:

You can find the authorized version of this paper on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116418887225003954

The sixth and final paper for this week is “Closed-Form Statistical Relations Between Projected Separation, Semimajor Axis, Companion Mass, and Host Acceleration” by Timothy D Brandt (Space Telescope Science Institute, USA). This was published on Friday 17th April in the folder Solar and Stellar Astrophysics. In this paper the author derives statistical relationships between radial velocity, a companion’s mass, and projected separation, useful for calculations requiring derivatives. The results are verified with empirical comparisons to existing literature.

The overlay for this one is here:

You can find the officially-accepted version on arXiv here and the Mastodon announcement here:

https://fediscience.org/@OJ_Astro/116418938017199814

And that concludes this week’s update. I’ll do another one at the end of next week.

P.S. Just a reminder, for those of you into LinkedIn, that we now have a page there.

Weekly Update from the Open Journal of Astrophysics – 18/04/2026

It is Saturday morning, and therefore time for yet another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 82 and the total so far published by OJAp up to 530.

I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter (which nobody should be using); these announcements also show the DOI for each paper.

The first paper to report this week is “Beyond Spherical geometry: Unraveling complex features of objects orbiting around stars from its transit light curve using deep learning” by Ushasi Bhowmick & Shivam Kumaran (Indian Space Research Institute, Ahmedabad, India). This study uses deep neural networks to predict the shape of objects orbiting stars based on their transit light curves, demonstrating the potential to extract geometric information from these systems. It was published on Monday 13th April in the folder Earth and Planetary Astrophysics and the overlay can be seen here:

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116395992732332356

The second paper for this week, also published on Monday 13th April Apil in the folder but in the folder Astrophysics of Galaxies, is “statmorph-lsst: Quantifying and correcting morphological biases in galaxy surveys” by Elizaveta Sazonova (U. Waterloo, Canada) and an international cast of 18 others. This paper presents an investigation of potential biases in quantitative morphology metrics used in galaxy evolution studies, proposing two new measurements to resolve biases, and provides a related Python package (statmorph-lsst), which can be found here on github.

The overlay for this one is here:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116396069424189312

Next one up, the third paper of the week, one of four published on Friday 17th April, is “Disentangling the galactic and intergalactic components in 313 observed Lyman-alpha line profiles between redshift 0 and 5” by Siddhartha Gurung-López (Universitat de València, Spain) and 7 others based in Spain and Germany. Published in the folder Astrophysics of Galaxies, this paper uses the zELDA package to analyze Lyman-alpha photons from star-forming galaxies, revealing IGM effects dominate Lyman-alpha observability at high redshifts, while galactic outflows become more important at lower z.

The overlay for this one is here:

The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116418831864134501

The fourth paper this week, also published on Friday 17th April is “Using Symbolic Regression to Emulate the Radial Fourier Transform of the Sérsic Profile for Fast, Accurate and Differentiable Galaxy Profile Fitting” by Tim B. Miller (Northwestern University, USA) and Imad Pasha (Yale University, USA). This one is published in the folder Instrumentation and Methods for Astrophysics: it develops an emulator for galaxy profile fitting in Fourier space, improving speed by 2.5 times with minimal accuracy loss, aiding in managing increasing data flow.

The overlay is here:

The finally accepted version of this paper can be found here and the Mastodon announcement follows:

https://fediscience.org/@OJ_Astro/116418855010158656

The fifth paper for this week is “The THESAN project: Lyman-alpha emitters as probes of ionized bubble sizes” by Meredith Neyer (MIT, USA) and 6 others based in the USA, Colombia, Canada, Japan and UK. The study uses THESAN simulations to explore how Lyman-alpha emitters (LAEs) trace ionized bubble sizes during the Epoch of Reionization, providing a framework for interpreting LAE surveys. This was published on Friday 17th April in the folder Astrophysics of Galaxies.

The overlay for this one is here:

You can find the authorized version of this paper on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116418887225003954

The sixth and final paper for this week is “Closed-Form Statistical Relations Between Projected Separation, Semimajor Axis, Companion Mass, and Host Acceleration” by Timothy D Brandt (Space Telescope Science Institute, USA). This was published on Friday 17th April in the folder Solar and Stellar Astrophysics. In this paper the author derives statistical relationships between radial velocity, a companion’s mass, and projected separation, useful for calculations requiring derivatives. The results are verified with empirical comparisons to existing literature.

The overlay for this one is here:

You can find the officially-accepted version on arXiv here and the Mastodon announcement here:

https://fediscience.org/@OJ_Astro/116418938017199814

And that concludes this week’s update. I’ll do another one at the end of next week.

P.S. Just a reminder, for those of you into LinkedIn, that we now have a page there.

New in the #VirtualObservatory: “Exoplanets orbiting M-dwarf stars parameters” by Wanderley F. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/993/233
#Orbits #MultipleStars #MStars #Exoplanets

New in the #VirtualObservatory: “The fate of MS-BD binaries” by Chen Z. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A312
#Orbits #AstronomicalReferenceMaterials #BrownDwarfs #Metallicity

Plane and profile views of stars moving around a central body (1750) by Thomas Wright, from An Original Theory or New Hypothesis of the Universe.

Source: The Getty / Internet Archive

https://pdimagearchive.org/images/482a4338-3dfd-4c22-882d-ed00bfd860cc

#diagrams #orbits #space #astronomy #cosmos #universe #stars #spheres #celestial #art #publicdomain

Plane and profile views of stars moving around a central body (1750) by Thomas Wright, from An Original Theory or New Hypothesis of the Universe.

Source: The Getty / Internet Archive

https://pdimagearchive.org/images/482a4338-3dfd-4c22-882d-ed00bfd860cc

#diagrams #orbits #space #astronomy #cosmos #universe #stars #spheres #celestial #art #publicdomain

New in the #VirtualObservatory: “Zorro/Gemini-South astrometric data of binary stars” by Mendez R.A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/169/226
#Astrometry #InfraredPhotometry #MultipleStars #Orbits

New in the #VirtualObservatory: “Physical properties study of planet systems” by Rossi A.M et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/705/A142
#Orbits #RadialVelocity #StellarAges #MultipleStars

New in the #VirtualObservatory: “Binaries orbital parameters comparison with Gaia DR3” by Ding Ye et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/169/211
#Astrometry #MultipleStars #Orbits #TrigonometricParallax

www.ft.com/content/5523... Prediction: because of the physical limitations of low earth orbit #LEO - these idiots (#Mush #Bezos etc.) will destroy that #space in no time. Bye-bye #space-based benefits such as #research. #satellites #orbits #science #technology

Elon Musk’s SpaceX lines up 4 ...

www.ft.com/content/5523... Prediction: because of the physical limitations of low earth orbit #LEO - these idiots (#Mush #Bezos etc.) will destroy that #space in no time. Bye-bye #space-based benefits such as #research. #satellites #orbits #science #technology

Elon Musk’s SpaceX lines up 4 ...

https://www.ft.com/content/55235da5-9a3f-4e0f-b00c-4e1f5abdc606

Prediction: because of the physical limitations of low earth orbit #LEO - these idiots (#Mush #Bezos etc.) will destroy that #space in no time. Bye-bye #space-based benefits such as #research.

#satellites #orbits #science #technology

https://www.ft.com/content/55235da5-9a3f-4e0f-b00c-4e1f5abdc606

Prediction: because of the physical limitations of low earth orbit #LEO - these idiots (#Mush #Bezos etc.) will destroy that #space in no time. Bye-bye #space-based benefits such as #research.

#satellites #orbits #science #technology

New in the #VirtualObservatory: “TTV analysis of single-planet TESS systems” by Naponiello L.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/705/A5
#Orbits #MultipleStars #VisibleAstronomy #Exoplanets

“Solar System” Quilt (1876–ca. 1883) by Ellen Harding Baker.

Source: Smithsonian Libraries and Archives

https://pdimagearchive.org/images/fa3bf009-8700-48b1-8867-bc6c0a8151c0

#embroidery #planets #orbits #astronomy #quilts #cosmos #education #sun #stars #comets #art #publicdomain

“Solar System” Quilt (1876–ca. 1883) by Ellen Harding Baker.

Source: Smithsonian Libraries and Archives

https://pdimagearchive.org/images/fa3bf009-8700-48b1-8867-bc6c0a8151c0

#embroidery #planets #orbits #astronomy #quilts #cosmos #education #sun #stars #comets #art #publicdomain

With the solar motion of Mercury, the geography of Antarctica, and aspects that are utterly alien, my planet Cerberus is coming along nicely.

Read more at my #blog: https://www.adamasnemesis.com/2025/12/16/fleshing-out-cerberus-antarctic-vibes/

This post's featured image is a NASA satellite image of the Antarctic Dry Valleys.

#worldbuilding #planet #continents #geology #tidallock #spinorbitresonance #atmospheres #orbits #alienplanet #climate #scifi #sciencefiction

With the solar motion of Mercury, the geography of Antarctica, and aspects that are utterly alien, my planet Cerberus is coming along nicely.

Read more at my #blog: https://www.adamasnemesis.com/2025/12/16/fleshing-out-cerberus-antarctic-vibes/

This post's featured image is a NASA satellite image of the Antarctic Dry Valleys.

#worldbuilding #planet #continents #geology #tidallock #spinorbitresonance #atmospheres #orbits #alienplanet #climate #scifi #sciencefiction

Selenographic Phases of the Moon (1660) by Andreas Cellarius, from Harmonia Macrocosmica.

Source: Stanford University Libraries

Available to buy as a print.

https://pdimagearchive.org/images/c1abe68d-2f14-4c45-8dc9-695f14048e96

#maps #moon #cartography #planets #orbits #astronomy #universe #cosmology #celestial #art #publicdomain

Selenographic Phases of the Moon (1660) by Andreas Cellarius, from Harmonia Macrocosmica.

Source: Stanford University Libraries

Available to buy as a print.

https://pdimagearchive.org/images/c1abe68d-2f14-4c45-8dc9-695f14048e96

#maps #moon #cartography #planets #orbits #astronomy #universe #cosmology #celestial #art #publicdomain

New in the #VirtualObservatory: “The main sequence-white dwarf valley” by Ranaivomanana P. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/704/A70
#Orbits #VisibleAstronomy #VariableStars #SubdwarfStars

New in the #VirtualObservatory: “Catalog of orbits visual binary stars” by Romanenko L.G. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/ARep/69.398
#MultipleStars #Orbits

New in the #VirtualObservatory: “Orbital periods of polars from TESS” by Hernandez-Diaz S. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/703/A166
#Orbits #VisibleAstronomy #Photometry #CataclysmicVariableStars

New in the #VirtualObservatory: “Ultracompact mass-transferring WD binaries” by Green M.J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/700/A107
#Orbits #Novae #CataclysmicVariableStars #StellarMasses

NASA's Fleet of Active Satellites (July 2025) 🛰️

#Orbits #PlanetaryOrbits #Satellite #SatelliteOrbits

⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=14&user=OptimusPrimeBot&ilshowall=1&offset=20250725125821

Third Interstellar Object Discovered
https://minorplanetcenter.net/mpec/K25/K25N12.html
#ycombinator #astrometry #observations #orbits #minor_planets #asteroids #comets #near_earth_objects #potentially_hazardous_asteroids

New dwarf planet found in our solar system
https://www.minorplanetcenter.net/mpec/K25/K25K47.html
#ycombinator #astrometry #observations #orbits #minor_planets #asteroids #comets #near_earth_objects #potentially_hazardous_asteroids

SOS - Day/Night cycle with Blue Marble and Black Marble Nightlights 🌎🛰️

#BlackMarble #Earth #EarthInformationCenter #Fleet #Night #Nightlights #Orbits #Satellite

⏩ 4 new pictures and 4 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=19&user=OptimusPrimeBot&ilshowall=1&offset=20250517130125

#biologically speaking...

there exists a #natural #spectrum of #reproduction

this range exists between 3 polars (or even #orbits)

Female to Asexual to Male

....lots more "#colors" between than just #black #white OR #mixed #race...unless you are only looking at the mirror one way.

...or only using a #mirror to #see...

#DarkEnergy and #Einstein’s #Legacy : Medium

#Choline: The underappreciated #Nutrient that's vital for our #Brains : BBC

It's time to clean up #SpaceJunk before #Orbits become 'unusable,' according to new #ESA report : Live Sci

Check our latest #KnowledgeLinks

https://knowledgezone.co.in/resources/bookmarks

❛❛ something big – often called #PlanetX – might actually be out there. And a new study by a team from #Princeton University has substantially raised the likelihood that it really exists.

The evidence comes from an apparently non-random distribution in the orientation of the #orbits of smaller outer #SolarSystem bodies known as trans-Neptunian objects or #KuiperBelt objects (KBOs). ❜❜

🔗 https://CosmosMagazine.com/space/astronomy/planet-x-solar-system/ 2024 Dec 06
🔗 https://Wikipedia.org/wiki/Planets_beyond_Neptune#Planet_X … #Planets #Neptune

#Astronomy #SpaceTime

A substellar flyby that shaped the orbits of the giant planets: https://arxiv.org/abs/2412.04583 -> An Interstellar Visitor Helped Shape the #Orbits of the Planets: https://www.universetoday.com/170075/an-interstellar-visitor-helped-shape-the-orbits-of-the-planets/

🔊 #NowPlaying on #KEXP's #DriveTime

Orbits:
🎵 Falling Apart

#Orbits

https://orbits-no.bandcamp.com/album/falling-apart

https://open.spotify.com/track/4MqXyXFy4YI1m1uJ36MAZq

🔊 #NowPlaying on #KEXP's #VarietyMix

Orbits:
🎵 SYNTHETIC SWEETNESS

#Orbits

https://orbits-no.bandcamp.com/track/synthetic-sweetness

https://open.spotify.com/track/50KgHQ2esPycqJtrWvEto3

🔊 #NowPlaying on #KEXP's #MiddayShow

Orbits:
🎵 SYNTHETIC SWEETNESS

#Orbits

https://orbits-no.bandcamp.com/track/synthetic-sweetness

https://open.spotify.com/track/50KgHQ2esPycqJtrWvEto3

#Satellite #orbits are represented using 6 keplerian params (plus t) called an "element set"

Before launch, nominals are published but the exact launch time isn't known so they are published as if the launch were happening at some common time. After the launch, you update the parameters

I thought I understood how to do that but failed for hours to get it right

What I love about working here: Met with an officemate who is regularly consulted by the US gov't on orbit-related questions