Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2013 12 18.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8)   LANDSAT-8 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2013   13:53:41   ( -71.07, 149.71) ( -71.12, 146.94)   99.70                66
 12/18/2013   14:43:24   (  70.08, -44.13) (  70.10, -44.09)    2.08                22
 12/18/2013   15:32:54   ( -69.98, 123.37) ( -69.97, 123.43)    2.99                49
 12/21/2013   06:10:22   ( -70.18, -95.75) ( -70.17, -95.73)    1.19                67
 12/21/2013   06:59:49   (  70.05,  71.72) (  70.03,  71.78)    3.11                10
 12/21/2013   07:49:24   ( -69.68,-121.16) ( -69.64,-120.31)   33.17                71
 12/23/2013   22:26:48   ( -70.11,  20.05) ( -70.11,  20.12)    2.65                35
 12/23/2013   23:16:14   (  70.04,-172.40) (  70.03,-172.45)    2.22                44
 12/26/2013   13:53:42   (  70.22, -31.54) (  70.20, -31.56)    2.37                72
 12/26/2013   14:43:12   ( -70.12, 135.95) ( -70.11, 135.88)    2.76                 0
 12/26/2013   15:32:42   (  69.83, -56.81) (  69.83, -56.37)   16.81                71
 12/29/2013   06:10:07   (  70.13,  84.23) (  70.16,  84.27)    3.37                39
 12/29/2013   06:59:37   ( -70.03,-108.27) ( -70.02,-108.20)    2.88                32
 12/31/2013   21:36:58   ( -70.46,  32.97) ( -70.51,  32.17)   30.06                72
 12/31/2013   22:26:29   (  70.11,-159.89) (  70.12,-159.91)    1.44                 4
 12/31/2013   23:15:59   ( -70.02,   7.61) ( -69.99,   7.62)    3.40                67