Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 6 18.  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)
 06/20/2020   14:41:36   ( -70.17, 136.10) 06/20/2020   14:40:23  ( -70.19, 136.02)    3.42                73
 06/20/2020   15:31:04   (  70.01, -56.48) 06/20/2020   15:31:06  (  70.02, -56.41)    2.56                 2
 06/20/2020   16:20:34   ( -69.90, 111.00) 06/20/2020   16:21:47  ( -69.88, 111.11)    5.46                73
 06/23/2020   06:58:08   ( -70.09,-108.14) 06/23/2020   06:57:16  ( -70.11,-108.10)    2.79                52
 06/23/2020   07:47:35   (  69.99,  59.36) 06/23/2020   07:48:00  (  70.00,  59.39)    1.67                25
 06/23/2020   08:37:20   ( -69.05,-134.27) 06/23/2020   08:38:26  ( -69.06,-131.94)   92.56                66
 06/25/2020   23:14:39   ( -70.07,   7.71) 06/25/2020   23:14:10  ( -70.10,   7.71)    3.41                29
 06/26/2020   00:04:06   (  69.96, 175.20) 06/26/2020   00:04:54  (  69.98, 175.19)    2.91                48
 06/28/2020   14:41:38   (  70.25, -43.79) 06/28/2020   14:40:25  (  70.33, -44.20)   18.10                73
 06/28/2020   15:31:10   ( -70.04, 123.54) 06/28/2020   15:31:03  ( -70.03, 123.59)    1.99                 7
 06/28/2020   16:20:37   (  69.93, -68.97) 06/28/2020   16:21:47  (  69.92, -68.93)    1.63                70
 07/01/2020   06:58:10   (  70.11,  71.89) 07/01/2020   06:57:14  (  70.11,  71.92)    1.47                56
 07/01/2020   07:47:40   ( -70.01,-120.62) 07/01/2020   07:47:56  ( -70.01,-120.61)    1.04                16
 07/01/2020   08:37:20   (  69.17,  45.89) 07/01/2020   08:38:27  (  69.21,  47.87)   78.05                67