Sentences with phrase «occultation observation»

This European Space Agency (ESA) satellite for direct - pointing and lunar - occultation observation of X-ray sources beyond the solar system was launched into a highly eccentric orbit (apogee 200,000 km, perigee 500 km) almost perpendicular to that of the moon on May 26, 1983.

«SOFIA conducted its first occultation observation, also involving Pluto, in July 2011.

Turning to the outer reaches of the solar system: in the icy cold and lonely Kuiper Belt was observed a difference in Pluto's atmospheric thickness, inferred from two occultation observations 14 years apart.

Not exact matches

A detailed ozone model budget analysis was performed with simultaneous observations of O3, HCl, H2O, CH4, NO, and NO2 from the Halogen Occultation Experiment (HALOE) on the Upper Atmosphere Research Satellite (UARS) under conditions with the strongest photochemical control of ozone.

Schlichting's group found just a single occultation, caused by a KBO approximately one kilometer in diameter, in 4.5 years of observations.

But according to Brazilian physicist Felipe Braga Ribas of the Valongo Observatory in Rio de Janeiro, observations of a stellar occultation by Quaoar on 4 May 2011 indicate a much larger diameter, between 1045 and 1095 kilometers.

These glitches are apparent from astronomical observations of occultations of stars by the moon — miniature eclipses that occur when the moon passes in front of the distant star.

The relatively brief occultation (it had been predicted to last nearly 2 minutes), combined with negative observations from a pair of telescopes in Argentina, suggested right away that Eris wasn't as large as thought.

That's when telescope observations of distant stars going behind Pluto (known as stellar occultations) showed that it had a methane atmosphere, probably rapidly evaporating to space.

We use multiple observations with Warm Spitzer to detect the occultation at 7 -LCB- \ sigma -RCB- and 4 -LCB- \ sigma -RCB- in the 3.6 and 4.5 -LCB- \ mu -RCB- m bandpasses, respectively.

The observations taken during the occultation also gave more accurate details of the dwarf planet's size, showing it to be an oblate spheroid measuring 1,430 km by 1,500 km, making it about two - thirds the size of Pluto.

With the preparation of accurate predictions successful observation of asteroid occultations has now been recorded in the UK.

Continued observations of stellar occultations of Pluto will show us whether its atmosphere freezes out.