Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 12 26.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/27/2018   06:08:44   (  70.42,  84.67) 12/27/2018   06:07:32  (  70.46,  83.91)   28.83                72
 12/27/2018   06:58:18   ( -70.09,-108.17) 12/27/2018   06:58:09  ( -70.10,-108.21)    1.98                 9
 12/27/2018   07:47:45   (  69.98,  59.32) 12/27/2018   07:48:53  (  69.99,  59.26)    2.59                68
 12/29/2018   22:25:17   (  70.15,-159.85) 12/29/2018   22:24:20  (  70.16,-159.86)    2.13                57
 12/29/2018   23:14:47   ( -70.04,   7.64) 12/29/2018   23:15:02  ( -70.06,   7.61)    2.92                15
 12/30/2018   00:04:26   (  69.27, 174.23) 12/30/2018   00:05:33  (  69.27, 176.09)   73.21                67
 01/01/2019   14:41:46   (  70.14, -43.97) 01/01/2019   14:41:14  (  70.13, -44.04)    2.86                32
 01/01/2019   15:31:17   ( -69.98, 123.44) 01/01/2019   15:31:55  ( -69.98, 123.51)    3.03                38
 01/04/2019   06:08:43   ( -70.52, -95.18) 01/04/2019   06:07:32  ( -70.62, -96.35)   44.56                71
 01/04/2019   06:58:16   (  70.08,  71.82) 01/04/2019   06:58:08  (  70.10,  71.77)    3.13                 8
 01/04/2019   07:47:46   ( -69.98,-120.69) 01/04/2019   07:48:50  ( -70.00,-120.75)    3.03                64
 01/06/2019   22:25:18   ( -70.19,  20.21) 01/06/2019   22:24:18  ( -70.17,  20.13)    3.18                60
 01/06/2019   23:14:46   (  70.02,-172.39) 01/06/2019   23:15:01  (  70.03,-172.33)    2.39                15
 01/07/2019   00:04:25   ( -69.42,  -5.57) 01/07/2019   00:05:34  ( -69.44,  -4.15)   55.49                69