Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 6 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)
 06/28/2018   22:24:28   ( -70.17,  20.25) 06/28/2018   22:23:47  ( -70.15,  20.29)    3.22                41
 06/28/2018   23:13:55   (  70.07,-172.26) 06/28/2018   23:14:32  (  70.07,-172.28)    1.01                37
 07/01/2018   13:51:19   (  70.75, -30.65) 07/01/2018   13:50:10  (  70.82, -32.32)   61.63                69
 07/01/2018   14:40:58   ( -70.15, 136.09) 07/01/2018   14:40:41  ( -70.16, 136.04)    2.20                17
 07/01/2018   15:30:25   (  70.05, -56.41) 07/01/2018   15:31:25  (  70.04, -56.45)    1.98                60
 07/04/2018   06:07:59   (  70.23,  84.45) 07/04/2018   06:06:53  (  70.21,  84.43)    2.77                66
 07/04/2018   06:57:29   ( -70.13,-108.06) 07/04/2018   06:57:35  ( -70.13,-108.12)    2.21                 6
 07/04/2018   07:47:02   (  69.69,  58.97) 07/04/2018   07:48:13  (  69.68,  59.85)   34.17                71
 07/06/2018   22:24:30   (  70.20,-159.71) 07/06/2018   22:23:47  (  70.17,-159.74)    2.71                43
 07/06/2018   23:14:00   ( -70.10,   7.77) 07/06/2018   23:14:29  ( -70.09,   7.71)    2.51                29
 07/09/2018   13:51:20   ( -71.04, 149.78) 07/09/2018   13:50:13  ( -71.09, 147.23)   92.29                67
 07/09/2018   14:41:01   (  70.16, -43.89) 07/09/2018   14:40:41  (  70.14, -43.92)    2.08                20
 07/09/2018   15:30:31   ( -70.06, 123.60) 07/09/2018   15:31:23  ( -70.06, 123.54)    2.58                52