Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 3 29.  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)
 03/30/2018   06:08:11   (  70.87,  85.28) 03/30/2018   06:07:03  (  70.96,  83.19)   76.81                68
 03/30/2018   06:57:52   ( -70.15,-108.15) 03/30/2018   06:57:31  ( -70.13,-108.16)    2.59                21
 03/30/2018   07:47:20   (  70.00,  59.28) 03/30/2018   07:48:15  (  70.01,  59.32)    2.70                55
 04/01/2018   22:24:50   (  70.20,-159.83) 04/01/2018   22:23:44  (  70.22,-159.85)    1.87                66
 04/01/2018   23:14:20   ( -70.09,   7.64) 04/01/2018   23:14:25  ( -70.07,   7.70)    3.24                 5
 04/02/2018   00:03:53   (  69.65, 174.68) 04/02/2018   00:05:03  (  69.64, 175.65)   37.59                70
 04/04/2018   14:41:18   (  70.18, -43.98) 04/04/2018   14:40:39  (  70.16, -43.99)    2.64                39
 04/04/2018   15:30:48   ( -70.07, 123.50) 04/04/2018   15:31:21  ( -70.06, 123.48)    1.86                33
 04/07/2018   06:08:11   ( -70.71, -94.97) 04/07/2018   06:07:01  ( -70.78, -96.52)   57.50                70
 04/07/2018   06:57:47   (  70.11,  71.79) 04/07/2018   06:57:34  (  70.10,  71.86)    2.74                13
 04/07/2018   07:47:17   ( -70.00,-120.73) 04/07/2018   07:48:16  ( -70.00,-120.66)    2.46                59
 04/09/2018   22:24:48   ( -70.20,  20.15) 04/09/2018   22:23:46  ( -70.20,  20.17)    1.02                62
 04/09/2018   23:14:15   (  70.08,-172.37) 04/09/2018   23:14:30  (  70.10,-172.37)    2.43                15
 04/10/2018   00:03:53   ( -69.54,  -5.48) 04/10/2018   00:05:03  ( -69.52,  -4.18)   50.66                70