Vejret Svanekevej Ikast

Weather Terms
Tornado Warning - Strong rotation in a thunderstorm is indicated by Doppler radar or a tornado is sighted by skywarn spotters. These warnings are issued on a county by county basis by the local Weather Forecast office in Chicago/Romeoville.

Stjerne Naboer

International Space Station Synsvinkler

USA, Hubble Space Telescope Synsvinkler

SL-16 Rocket Body - Spy Satellite Synsvinkler

Long March Rocket Body (high-E) Synsvinkler

OKEAN, Weather Satellite Synsvinkler

UARS, Scientific Satellite Synsvinkler

COSMOS 1674, ELINT Spy Satellite Synsvinkler

COSMOS 1220, EORSAT Spy Satellite Synsvinkler

COSMOS 2058, ELINT Spy Satellite Synsvinkler

Upper Atmosphere Research Satellite Synsvinkler

Notes about viewing ESVs:
When using lookangles, choose passes with high magnitudes; less than 6.0. ("Looks" are local time.)
Best viewing is when ESV is in Earth's penumbra; on the map, it's the solid line during night.
Dotted line on map denotes ESV is dark, in Earth's umbra (shadow).
Objects in orbit have to maintain a speed of at least 17,500mph, therefore ESVs traverse the sky noticeably different than aircraft.
ESVs appearing to blink are either tumbling rocket bodies, or spinning payloads with deployed solar arrays.
High-Eccentricity objects have a more ellongated orbit. Ground trace looks like a backwards C.
Regression-Ground traces will move West with each orbit due to Earth's rotation.