Документ взят из кэша поисковой машины. Адрес оригинального документа : http://star.arm.ac.uk/~aac/uranus/readme_ura.txt Дата изменения: Thu Mar 22 20:24:12 2007 Дата индексирования: Tue Oct 2 03:31:00 2012 Кодировка: Поисковые слова: вторая космическая скорость

Columns Description

2-5 Type of event and satellites involved.
An occultation (``O'') can either be
partial (``P''), total (``T'') or
annular (``A'').
An eclipse (``E'') can either be penumbral (``P''),
umbral (``U''), total (``T'') or
annular (``A'').
Grazing (``G'') events are allowable
given the ephemeris uncertainties.
Satellite identification is as follows:
Ariel (1), Umbriel (2), Titania (3),
Oberon (4), Miranda (5).

8-11 Year (YYYY)

13-15 Month (MMM)

17-18 Day (DD). Note that date corresponds to event start.

21-28 Penumbra ingress time (eclipses only). Note that all
times are given in UTC with deltaT fixed at 64.184 sec.

31-38 Umbra Ingress (eclipses) or Partial event start
(occultations).

41-48 Start of Totality or Annularity.

51-58 Middle of event

61-68 End of Totality or Annularity.

71-78 Umbra Egress (eclipses) or Partial event end
(occultations).

81-88 Penumbra egress time (eclipses only).

93-96 Time between penumbra ingress and egress (eclipses only).

100-103 Time between umbra ingress and egress (eclipses) or
partial phase start and end (occultations).

107-110 Duration of totality/annularity.

113-117 Impact parameter in units of the eclipsed/occulted
satellite's apparent radius.

120-124 Fractional drop in light flux of eclipsed satellite.

127-131 Fractional drop in cumulative flux of satellites involved
in event (occultations and eclipses).

134-136 Distance from uranian limb at onset of event in units
of the apparent planetary radius.