vareck

@vareck

Portland, Oregon
Vrijeme pridruživanja: srpanj 2007.

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  1. prije 16 sati

    Asteroid / Meteoroid C21VL72 passed by earth within the orbits of the geosynchronous satellites. This is a plot of all satellites with a period of > 600 minutes with a TLE in the space track database. I generated…

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  2. 31. sij

    Based on the AMS-posted position and velocity on facebook, the LA Meteor ~ a=2.90461 AU e=0.677288 i=2.60827° ω=151.679° Ω=309.545° q=0.937354 AU Q=4.87187 AU and it would have been in the sky over the sites still in sunlight inbound

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  3. 27. sij

    January 27 cneos meteor over Algeria: I get ~ a=1.65374 AU e=0.494289 i=21.0851° ω=122.999° Ω=306.47° q=0.836315 AU Q=2.47117 AU

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  4. 26. sij

    May as well tweet the lunar-distance version too: 2020 BH6 CA encounter

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  5. 26. sij

    To correct myself on a comment on ’s 2020 BH6 CA, I forgot to rotate the satellites into the proper frame (though simulation was correct, impacted drawing only). Done now, sat color = inclination 0º=red increase toward blue:

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  6. 25. sij

    Another meteor appeared in cneos, it seems we’re on a roll for low-ish inclination, aphelion around jupiter’s orbit meteors:

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  7. 22. sij

    First cut of an orbit for the Puerto Rico meteor (based on cneos, no atmosphere modeled yet): a=3.77585 AU e=0.741842 i=7.25614° ω=11.857° Ω=116.989° q=0.974769 AU Q=6.57694 AU (discard pedantic non-significant figures) - did anyone else do an orbit for it yet, I want to compare

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  8. 17. sij

    New CNEOS meteor: 2020-1-16 09:31:42. Very approximate (I ran without atmosphere deceleration modeled this time) elements: a=1.70613 AU e=0.424504 i=4.87846° ω=6.20021° Ω=115.613° q=0.98187 AU Q=2.43039 AU (Ceres is the outer plotted orbit)

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  9. 9. sij

    New meteor! (this based on the chicken little velocity, which I’ve not been really sure about) - a=0.675291 AU e=0.584336 i=46.2755° ω=339.619° Ω=279.849° (note that gives a perihelion inside Mercury’s orbit). (skyfall page: )

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  10. 5. sij

    Visualizing seesat observation decks

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  11. 27. pro 2019.

    Comet C/2017 T2 and another Russian photobomber - Cosmos 2492, a Glonass satellite. I had checked for Starlink and of course those were all well within Earth’s shadow. But this satellite wasn’t.

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  12. 23. pro 2019.

    The meteor I talked about in my last tweet was probably reported as - I’ll take a very wild guess at 65 cm radius and 3500 kg mass from ~875 GJ (0.21kt) energy. aprox view presuming luminous flight began ~110km alt 467km @ 175º az from Anchorage

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  13. 23. pro 2019.

    New meteor appeared in the cneos fireball list, approximate orbit: a=1.40869 AU e=0.593264 i=9.58183º ω=276.974º Ω=269.578º

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  14. 22. pro 2019.

    Starlink vs Everything (December 22 TLEs)

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  15. proslijedio/la je Tweet

    Happy solstice to all!

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  16. 16. pro 2019.

    C/2107 T2 and viewing volume orientation (as of this 2019-12-17 04:13:17 300s utc)

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  17. 14. pro 2019.

    A sky full of comets (13 AU without names and 3.6 AU with)

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  18. 11. pro 2019.

    300 of the 1000 possible orbits listed for A10izBr found by Scout. Needle in a haystack (blue line represents travel along the orbit from first observation to now)

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  19. 11. pro 2019.

    New CNEOS meteor (with vectors)!! Back-of-the-napkin orbit: a=0.889053 AU e=0.411109 i=13.3122º ω=52.5967º Ω=258.426º

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  20. 8. pro 2019.

    2I/Borisov just past perihelion 11h 28m 37s RA, -18º 17’ 53” dec at 2019-12-08 17:20:57 (the center of the exposure), imaged with iTelescope 31/Siding Springs (not. the right scope for this, but it was available)

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