Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 7 31.  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)
 08/02/2018   13:51:29   (  71.04, -30.20) 08/02/2018   13:50:23  (  71.08, -32.76)   92.72                66
 08/02/2018   14:41:13   ( -70.16, 136.11) 08/02/2018   14:40:49  ( -70.15, 136.07)    2.38                24
 08/02/2018   15:30:41   (  70.01, -56.46) 08/02/2018   15:31:33  (  70.03, -56.45)    2.82                52
 08/05/2018   06:08:15   (  70.20,  84.41) 08/05/2018   06:07:03  (  70.19,  84.46)    2.65                72
 08/05/2018   06:57:45   ( -70.09,-108.11) 08/05/2018   06:57:45  ( -70.09,-108.07)    1.56                 0
 08/05/2018   07:47:15   (  69.83,  59.16) 08/05/2018   07:48:26  (  69.82,  59.64)   18.66                71
 08/07/2018   22:24:46   (  70.18,-159.74) 08/07/2018   22:24:00  (  70.18,-159.77)    1.08                46
 08/07/2018   23:14:16   ( -70.07,   7.74) 08/07/2018   23:14:42  ( -70.08,   7.71)    1.47                26
 08/10/2018   13:51:35   ( -71.08, 149.85) 08/10/2018   13:50:29  ( -71.12, 147.17)   96.60                66
 08/10/2018   14:41:17   (  70.15, -43.90) 08/10/2018   14:40:56  (  70.13, -43.92)    2.85                21
 08/10/2018   15:30:47   ( -70.05, 123.58) 08/10/2018   15:31:38  ( -70.02, 123.56)    3.20                51
 08/13/2018   06:08:20   ( -70.23, -95.55) 08/13/2018   06:07:08  ( -70.22, -95.61)    2.27                72
 08/13/2018   06:57:48   (  70.06,  71.85) 08/13/2018   06:57:51  (  70.07,  71.93)    3.11                 3
 08/13/2018   07:47:19   ( -69.91,-120.73) 08/13/2018   07:48:32  ( -69.91,-120.51)    8.73                73