Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 1 27.  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)
 01/28/2020   15:31:28   (  70.07, -56.45) 01/28/2020   15:30:59  (  70.06, -56.44)    1.37                29
 01/28/2020   16:20:58   ( -69.96, 111.02) 01/28/2020   16:21:41  ( -69.96, 111.02)    0.62                43
 01/31/2020   06:58:27   ( -70.29,-107.89) 01/31/2020   06:57:15  ( -70.36,-108.45)   21.91                72
 01/31/2020   07:47:57   (  70.02,  59.36) 01/31/2020   07:47:55  (  70.03,  59.36)    1.50                 2
 01/31/2020   08:37:27   ( -69.91,-133.16) 01/31/2020   08:38:37  ( -69.94,-133.18)    2.93                70
 02/02/2020   23:14:59   ( -70.08,   7.68) 02/02/2020   23:14:06  ( -70.07,   7.76)    3.04                53
 02/03/2020   00:04:26   (  69.97, 175.17) 02/03/2020   00:04:50  (  69.96, 175.23)    2.51                24
 02/03/2020   00:54:11   ( -69.04, -18.45) 02/03/2020   00:55:17  ( -69.07, -16.16)   90.86                66
 02/05/2020   14:41:43   (  70.96, -42.77) 02/05/2020   14:40:36  (  70.99, -45.27)   90.84                67
 02/05/2020   15:31:27   ( -70.03, 123.49) 02/05/2020   15:31:01  ( -70.05, 123.55)    3.11                26
 02/05/2020   16:20:53   (  69.97, -68.95) 02/05/2020   16:21:45  (  69.94, -68.98)    3.40                52
 02/08/2020   06:58:25   (  70.13,  71.88) 02/08/2020   06:57:15  (  70.14,  71.87)    0.72                70
 02/08/2020   07:47:55   ( -70.03,-120.63) 02/08/2020   07:47:57  ( -70.03,-120.66)    1.31                 2
 02/08/2020   08:37:26   (  69.70,  46.55) 02/08/2020   08:38:37  (  69.72,  47.12)   22.23                71