Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 8 10.  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)
 08/10/2020   06:58:23   ( -70.10,-108.10) 08/10/2020   06:57:42  ( -70.10,-108.14)    1.26                41
 08/10/2020   07:47:50   (  70.00,  59.39) 08/10/2020   07:48:26  (  69.98,  59.36)    2.86                36
 08/12/2020   22:25:15   (  70.62,-159.10) 08/12/2020   22:24:05  (  70.63,-160.53)   52.87                70
 08/12/2020   23:14:53   ( -70.07,   7.74) 08/12/2020   23:14:38  ( -70.07,   7.67)    2.43                15
 08/13/2020   00:04:20   (  69.97, 175.23) 08/13/2020   00:05:22  (  69.95, 175.16)    2.92                62
 08/15/2020   14:41:53   (  70.14, -43.91) 08/15/2020   14:40:52  (  70.14, -43.98)    2.53                61
 08/15/2020   15:31:24   ( -69.99, 123.50) 08/15/2020   15:31:33  ( -69.99, 123.56)    2.64                 9
 08/15/2020   16:20:59   (  69.43, -69.62) 08/15/2020   16:22:08  (  69.40, -68.25)   53.47                69
 08/18/2020   06:58:23   (  70.05,  71.84) 08/18/2020   06:57:46  (  70.07,  71.90)    3.14                37
 08/18/2020   07:47:53   ( -69.95,-120.67) 08/18/2020   07:48:28  ( -69.97,-120.63)    2.64                35
 08/20/2020   22:25:18   ( -70.56,  20.82) 08/20/2020   22:24:07  ( -70.63,  19.48)   49.97                71
 08/20/2020   23:14:52   (  70.06,-172.26) 08/20/2020   23:14:42  (  70.05,-172.30)    2.05                10
 08/21/2020   00:04:22   ( -69.97,  -4.77) 08/21/2020   00:05:24  ( -69.95,  -4.83)    3.11                62
 08/23/2020   14:41:55   ( -70.14, 136.08) 08/23/2020   14:40:54  ( -70.13, 136.03)    1.95                61
 08/23/2020   15:31:22   (  70.01, -56.45) 08/23/2020   15:31:38  (  70.03, -56.51)    2.80                16
 08/23/2020   16:21:01   ( -69.43, 110.38) 08/23/2020   16:22:10  ( -69.40, 111.75)   53.61                69