Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 3 14.  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)
 03/16/2020   14:41:46   ( -70.17, 136.00) 03/16/2020   14:40:32  ( -70.21, 135.91)    6.05                74
 03/16/2020   15:31:13   (  70.06, -56.51) 03/16/2020   15:31:15  (  70.04, -56.51)    3.04                 2
 03/16/2020   16:20:44   ( -69.90, 110.89) 03/16/2020   16:21:56  ( -69.90, 111.01)    4.65                72
 03/19/2020   06:58:14   ( -70.10,-108.22) 03/19/2020   06:57:25  ( -70.12,-108.18)    2.86                49
 03/19/2020   07:47:41   (  69.99,  59.27) 03/19/2020   07:48:09  (  70.00,  59.32)    2.05                28
 03/21/2020   22:25:00   (  70.84,-158.87) 03/21/2020   22:23:52  (  70.91,-160.98)   77.15                68
 03/21/2020   23:14:42   ( -70.08,   7.64) 03/21/2020   23:14:20  ( -70.08,   7.65)    0.54                22
 03/22/2020   00:04:09   (  69.97, 175.12) 03/22/2020   00:05:04  (  69.96, 175.14)    0.94                55
 03/24/2020   14:41:40   (  70.16, -44.00) 03/24/2020   14:40:33  (  70.14, -43.98)    2.69                67
 03/24/2020   15:31:10   ( -70.06, 123.49) 03/24/2020   15:31:15  ( -70.05, 123.47)    1.56                 5
 03/24/2020   16:20:43   (  69.61, -69.49) 03/24/2020   16:21:53  (  69.61, -68.57)   35.59                70
 03/27/2020   06:58:08   (  70.13,  71.84) 03/27/2020   06:57:28  (  70.11,  71.83)    2.59                40
 03/27/2020   07:47:38   ( -70.04,-120.67) 03/27/2020   07:48:10  ( -70.02,-120.71)    2.70                32