Last update on 31.03.2023 --------------------------------------------------------
Nsat               first         last      duration  number        Interval of the
int.               observation:  observ.:            of obs. numerical ephemerides
    Number Name    year  m  d    year  m  d   years  used year  m  d -  year  m  d
----------------------------------------------------------------------------------
 16 U16    Caliban 1984  6  1 -  2015  8 22 ( 31.22)  144 1974 12 30 -  2050  1  5
 17 U17    Sycorax 1984  6  1 -  2016 12  8 ( 32.52)  547 1974 12 30 -  2050  1  5
 18 U18   Prospero 1999  7 18 -  2010  9  8 ( 11.14)  107 1974 12 15 -  2050  1 10
 19 U19    Setebos 1999  7 18 -  2009  8 19 ( 10.09)   57 1974 12 15 -  2050  1 10
 20 U20   Stephano 1999  7 18 -  2004 10 15 (  5.24)   41 1974 12 15 -  2050  1 10
 21 U21   Trinculo 2001  8 13 -  2010  9  8 (  9.07)   34 1975  1  1 -  2050  1  7
 23 U22  Francisco 2001  8 13 -  2010  9  8 (  9.07)   17 1975  1  1 -  2050  1  7
 24 U23   Margaret 2001  8 13 -  2010  9  8 (  9.07)   28 1975  1  1 -  2050  1  7
 22 U24  Ferdinand 2001  8 13 -  2010  9  8 (  9.07)   25 1975  1  1 -  2050  1  7