Global climate model occultation lightcurves tested by August 2018 ground-based stellar occultation
نویسندگان
چکیده
منابع مشابه
Probing Titan’s Atmosphere with the 1995 August Stellar Occultation
On 1995 August 21, Saturn’s moon Titan occulted the 13th magnitude star GSC5254-00997. The predawn event was observed at 2.3 μm with the NASA 3.0-m Infrared Telescope Facility. We measured the average atmospheric scale height between latitudes 50◦S and 67◦S by fitting isothermal models to the immersion portion of the occultation lightcurve. Within the altitude range of 300 to 500 km, we find an...
متن کاملRapid Computation of Occultation Lightcurves using Fourier Decomposition
Calculation of a stellar occultation lightcurve from an assumed refractivity profile involves the integral of the refractivity or its derivatives along the line of sight through an atmosphere. For the general case, normal numerical integration can be time consuming for least-squares fitting with a modest number of free parameters, or for calculation at a fine grid for comparison with local refo...
متن کاملUv Stellar Occultation Measurements of Nighttime Equatorial Ozone
The Princeton University Ultraviolet Spectrometer-Telescope on the NASA Orbiting Astronomical Observatory Copernicus was used for stellar occultation measurements of atmospheric ozone. Two sets of observations of the target star 8-Cen were carried out on 26 July 1975 and 13-14 June 1976 at wavelengths from 2550• to 3100•. After unfolding of the data, ozone density profiles near the equator with...
متن کاملStellar Occultation Saturn ' s Upper Observations of Atmosphere
We have analyzed three stellar occultation observations of Saturn's upper atmosphere during the years 1989 to 1995. These occultations probed the stratosphere at pressure levels about 0.5 to 20 pbars, intermediate to those probed by the Pioneer 11, Voyager I and II radio and ultraviolet occultations. The time span of the earlier occultations and the observation of a higher latitude occultation ...
متن کاملStellar Occultation Observations of Saturn's North-polar Temperature Structure
We have observed a stellar occultation of GSC5249-01240 by Saturn's north polar region on November 20, 1995 from NASA's Infrared Telescope Facility (IRTF). This is the first recorded occultation by the polar region of a giant planet. The occulted region extends 88 km in vertical height and 660 km in horizontal length, over a region from 82.5 to 85 degrees in planetocentric latitude and from 20 ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Icarus
سال: 2021
ISSN: 0019-1035
DOI: 10.1016/j.icarus.2020.113976