Orbits and when to get excited: a thread
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There's a lot of excitement in the last day or so about a candidate near-Earth asteroid that has the temporary designation
#gb00234. This object is currently listed on the Possible Comet Confirmation Page https://minorplanetcenter.net/iau/NEO/pccp_tabular.html …1 reply 11 proslijeđenih tweetova 42 korisnika označavaju da im se sviđaPrikaži ovu nit -
Entirely routinely and going on all the time, new moving things in the sky get found and added to the Near-Earth Object Confirmation Page of
@MinorPlanetCtr https://minorplanetcenter.net/iau/NEO/toconfirm_tabular.html …1 reply 2 proslijeđena tweeta 17 korisnika označava da im se sviđaPrikaži ovu nit -
If they turn out to be a little fuzzy dot, with a cometary coma, they are moved from that list to the Possible Comet Confirmation Page [I'm simplifying a little, but broad-brush]. This step requires More Observations
1 reply 2 proslijeđena tweeta 20 korisnika označava da im se sviđaPrikaži ovu nit -
When the orbit is sufficiently well known,
@MinorPlanetCtr issues a Minor Planet Electronic Circular. https://minorplanetcenter.net/mpec/RecentMPECs.html … This step requires a fair bit of knowledge about the object's orbit. Which comes from observations1 reply 2 proslijeđena tweeta 18 korisnika označava da im se sviđaPrikaži ovu nit -
Until the arc of an orbit is sufficiently long, there are really strong uncertainties in what its orbit can be. The ways this gets resolved? More observations
1 reply 3 proslijeđena tweeta 17 korisnika označava da im se sviđaPrikaži ovu nit -
This is not the first object since 2017/1I, better known as ʻOumuamua, to show a hyperbolic orbit. Several short-arcs have flourished and slid slowly into the demise of straightforward parabolas. What it took? More observations
6 replies 4 proslijeđena tweeta 29 korisnika označava da im se sviđaPrikaži ovu nit
So what you’re saying is don’t become excited yet?
Čini se da učitavanje traje već neko vrijeme.
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