=============================================================================================================================== READ-ME file for the directory ftp://ftp.imcce.fr/pub/ephem/satel/pheura07 =============================================================================================================================== This directory contains files of data concerning the prediction of the events of the Uranian satellites in the period 2006-2007-2008-2009-2010-2011 Note that to get all the events, you must add the possible events and the selected probable ones. files and directories: 1) file: pred_pheura07_LA-GUST_possible.txt this file contains possible mutual events (but not sure) which may occur and has the following format: ======================================================================================= Date (TT) maximum maximum dist. of maximum Event LA06 GUST86 year mth day h m s h m s (UR) 2006 5 18 5 Oc 1 c 1 7 38. 1 7 51. 3.7 2006 5 24 1 Oc 5 c 8 53 47. 8 53 53. 3.4 2006 6 9 5 Oc 1 c 17 5 26. 17 5 26. 3.9 first three columns: date of the maximum (year, month, day) followed by -the event: OCC= occults; ECL=eclipses; P=partial; A=annular; T=total; p or blank =penumbra -the time of the maximum of the event in TT for LA06 ephemeris -the time of the maximum of the event in TT for LJ86 ephemeris -the time of the end of the event in TT -the distance to the limb of Uranus in Uranian radii 2) files: pred_pheura07_LA06_selected.txt and pred_pheura07_GUST86_selected.txt these files contain only selected events supposed to be more easily observable the occurrence of which is highly probable and has the following format: ========================================================================================================================== Date (TT) begins maximum dist. flux magn. magn. magn. magn. impact of maximum Event at dur. R R R V no alb. param. year mth day h m s h m s s (UR) 2 sat (") 2006 5 5 5 OC 1 P 10 24 38. 10 26 19. 202 3.9 0.014 0.016 0.016 0.015 0.009 0.051 2006 5 11 1 OC 5 c 17 36 10. 3.9 0.1 2006 6 3 1 OC 5 P 10 3 3. 10 7 44. 562 3.8 0.128 0.149 0.149 0.157 0.168 0.025 2006 6 16 1 OC 5 T 0 36 55. 0 39 12. 273 3.8 0.130 0.152 0.152 0.160 0.171 0.001 first three columns: date of the maximum (year, month, day) followed by -the event: OC= occults; EC=eclipses; P=partial; A=annular; T=total; p or blank =penumbra; c=conjunction note that a conjunction for an ephemeris may be an observable evnet for the other ephemeris -the time of the beginning of the event in TT -the time of the maximum of the event in TT -the duration in seconds of time -the distance to the limb of Uranus in Uranian radii -the flux drop in R band for two sat. in occult. and one sat. in ecl. -the magnitude drop in the R-band for two sat. in occult. and one sat. in ecl. -the magnitude drop in the R-band for both implied satellites either for occ. and ecl. -the magnitude drop in the V-band for two sat. in occult. and one sat. in ecl. -the magnitude drop using the same albedo for all satellites for two sat. in occult. and one sat. in ecl. -the impact parameter in arcsec 3) file: pred_eclipses_LA06.txt (in preparation) this file contains the list of the eclipses of the satellites by the planet Uranus with the following format: ================================================= Date (TT) Mid-time Dur. Dist. of the Event mid-time h m s s (UR) 2006 1 4 0 E 2 I 17 47 11.6 1.000 798 0.8 2006 1 4 0 E 2 E 18 28 13.2 1.000 797 0.7 2006 1 5 0 E 1 I 13 37 28.8 1.000 81 0.7 first three columns: date (year, month, day) of the mid-time of the eclipse followed by -the event: O E n= eclipse of sat n; I= ingress (beginning of an eclipse); E=egress (end of an eclipse) -the time of the mid-time of the eclipse in TT -the flux drop (smaller than 1.000 only for grazing eclipses) -the duration of the disappearance or reappearance of the satellite in seconds of time -the distance to the limb of Uranus in Uranian radii 4) file: pred_occultations_LA06.txt (in preparation) this file contains the list of the occultations of the satellites by the planet Uranus with the following format: ================================================= Date (TT) Mid-time Dur. Dist. of the Event mid-time h m s s (UR) 2006 1 5 0 O 1 I 13 48 21.7 1.000 95 0. 2006 1 5 0 O 1 E 15 24 58.9 1.000 95 0. 2006 1 6 0 O 1 I 23 43 35.5 1.000 95 0. 2006 1 7 0 O 1 E 1 20 48.5 1.000 94 0. first three columns: date (year, month, day) of the mid-time of the occultation followed by -the event: O O n= occultation of sat n; I= ingress (beginning of the occultation); E=egress (end of the occultation) -the time of the mid-time of the occultation in TT -the flux drop (smaller than 1.000 only for grazing occultations) -the duration of the disappearance or reappearance of the satellite in seconds of time -the distance to the limb of Uranus in Uranian radii which is always 0. for the occultations 5) file: pred_passages_LA06.txt (in preparation) this file contains the list of the transits of the satellites and their shadows on the disk of the planet Uranus with the following format: ================================================= Date (TT) Mid-time Dur. Dist. of the Event mid-time h m s s (UR) 2006 1 4 0 S 1 I 20 40 4.4 1.000 81 0. 2006 1 4 0 T 1 I 20 50 58.2 1.000 95 0. 2006 1 4 0 T 1 E 22 27 13.7 1.000 95 0. 2006 1 4 0 S 1 E 22 33 4.3 1.000 81 0. 2006 1 6 0 S 2 I 0 4 6.1 1.000 780 0. 2006 1 6 0 S 2 E 0 46 7.0 1.000 773 0. 2006 1 6 0 S 1 I 6 35 33.5 1.000 81 0. first three columns: date (year, month, day) of the mid-time of the occultation followed by -the event: O T n= transit of sat n; I= ingress (beginning of the transit); E=egress (end of the transit) O S n= transit of the shadow of sat n; I= ingress (beginning of the transit); E=egress (end of the transit) -the time of the mid-time of the beginning or the end of the transit in TT -the flux drop (smaller than 1.000 only for grazing transits) -the duration of the entry or exit of the satellite or its shadow in seconds of time -the distance to the limb of Uranus in Uranian radii which is always 0. for these events 6)directory /visibility This directory contains files with local conditions for several sites of observation for the mutual events. Files have names as: visi_site_of_observation.txt for the local conditions for all events (highly probable or only possible) The format of the files of local conditions is: DATE OF MAXIMUM(TT) DIST RIGHT ASC. DECLINATION HOUR AZIMUTH ELEV. AZIMUTH ELEV. PHENOMENA FLUX to OF THE PLANET ANGLE OF THE PLANET OF THE SUN DURATION DROP URANUS YR MT D H M S S (UR) H M S DEG ' " H DEG DEG DEG DEG 2006 7 15 0 8 4. 5 O 1 P 225 0.178 3.8 23 4 1.99 - 6 50 55.5 -10.45 -52.7 19.8 -177.2 -19.5 2007 6 20 1 21 44. 5 O 2 c 0 0.000 3.9 23 19 37.56 - 5 11 32.5 -2.67 -62.6 15.5 -158.8 -15.0 2007 6 24 2 24 18. 1 E 5 c 0 0.000 2.9 23 19 38.91 - 5 11 34.0 -1.73 -44.9 25.9 -145.1 -10.2 2007 7 6 1 55 53. 5 E 2 A 160 0.163 2.3 23 19 26.03 - 5 13 25.1 -10.26 -40.1 28.0 -151.5 -13.5 The first six columns provide the date and time of the maximum of the event in TT followed by: -the nature of the events O=occults and E=eclipses -the duration of the event in seconds of time -the flux drop (0= no flux drop predicted; 1.= total event, disappearance of the satellite) -the distance to the limb of Uranus in Uranian radii -the right ascension and declination of Uranus -the hour angle, azimuth and elevation above the horizon of Uranus -the azimuth and elevation above the horizon of the Sun Note that no flux drop means that the predictions calculated only a conjunction between the satellite but that the uncertainties on the ephemerides may lead to a real flux drop during such event. ===============================================================================================================================