Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 4 25.  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)
 04/26/2019   06:08:07   ( -70.86, -94.75) 04/26/2019   06:06:58  ( -70.90, -96.71)   71.34                69
 04/26/2019   06:57:45   (  70.15,  71.85) 04/26/2019   06:57:30  (  70.16,  71.79)    2.26                15
 04/26/2019   07:47:15   ( -70.04,-120.68) 04/26/2019   07:48:11  ( -70.01,-120.67)    3.53                56
 04/28/2019   22:24:47   ( -70.19,  20.14) 04/28/2019   22:23:42  ( -70.22,  20.15)    3.16                65
 04/28/2019   23:14:14   (  70.08,-172.38) 04/28/2019   23:14:26  (  70.11,-172.37)    3.52                12
 04/29/2019   00:03:50   ( -69.64,  -5.35) 04/29/2019   00:05:01  ( -69.64,  -4.35)   38.45                71
 05/01/2019   14:41:15   ( -70.17, 135.99) 05/01/2019   14:40:38  ( -70.17, 135.99)    0.46                37
 05/01/2019   15:30:42   (  70.06, -56.53) 05/01/2019   15:31:22  (  70.06, -56.54)    0.88                40
 05/04/2019   06:08:08   (  70.47,  84.67) 05/04/2019   06:06:56  (  70.49,  83.93)   27.57                72
 05/04/2019   06:57:42   ( -70.15,-108.16) 05/04/2019   06:57:33  ( -70.12,-108.17)    3.32                 9
 05/04/2019   07:47:09   (  70.03,  59.32) 05/04/2019   07:48:17  (  70.02,  59.29)    1.57                68
 05/06/2019   22:24:41   (  70.17,-159.89) 05/06/2019   22:23:47  (  70.19,-159.83)    3.38                54
 05/06/2019   23:14:11   ( -70.07,   7.61) 05/06/2019   23:14:29  ( -70.08,   7.66)    1.99                18