Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 7 20.  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)
 07/22/2020   14:41:50   ( -70.14, 136.05) 07/22/2020   14:40:38  ( -70.12, 136.08)    1.61                72
 07/22/2020   15:31:17   (  70.03, -56.45) 07/22/2020   15:31:23  (  70.05, -56.50)    2.70                 6
 07/22/2020   16:20:49   ( -69.81, 110.87) 07/22/2020   16:22:02  ( -69.81, 111.18)   11.60                73
 07/25/2020   06:58:21   ( -70.08,-108.15) 07/25/2020   06:57:34  ( -70.08,-108.09)    2.20                47
 07/25/2020   07:47:48   (  69.97,  59.34) 07/25/2020   07:48:18  (  69.96,  59.40)    2.61                30
 07/27/2020   22:25:09   (  70.78,-158.87) 07/27/2020   22:24:01  (  70.87,-160.90)   74.82                68
 07/27/2020   23:14:50   ( -70.07,   7.72) 07/27/2020   23:14:29  ( -70.04,   7.73)    3.42                21
 07/28/2020   00:04:17   (  69.96, 175.21) 07/28/2020   00:05:14  (  69.98, 175.14)    2.96                57
 07/30/2020   14:41:51   (  70.11, -43.97) 07/30/2020   14:40:43  (  70.10, -43.90)    3.47                68
 07/30/2020   15:31:21   ( -70.01, 123.52) 07/30/2020   15:31:25  ( -70.00, 123.56)    1.86                 4
 07/30/2020   16:20:53   (  69.62, -69.38) 07/30/2020   16:22:04  (  69.62, -68.56)   31.58                71
 08/02/2020   06:58:21   (  70.10,  71.89) 08/02/2020   06:57:40  (  70.11,  71.84)    2.35                41
 08/02/2020   07:47:51   ( -70.00,-120.61) 08/02/2020   07:48:22  ( -70.02,-120.69)    3.52                31