Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 4 29.  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)
 05/01/2018   06:08:05   (  70.22,  84.29) 05/01/2018   06:06:57  (  70.24,  84.32)    2.65                68
 05/01/2018   06:57:34   ( -70.16,-108.16) 05/01/2018   06:57:39  ( -70.14,-108.21)    2.47                 5
 05/01/2018   07:47:07   (  69.73,  58.88) 05/01/2018   07:48:17  (  69.72,  59.74)   33.19                70
 05/03/2018   22:24:33   (  70.19,-159.87) 05/03/2018   22:23:52  (  70.21,-159.86)    1.98                41
 05/03/2018   23:14:03   ( -70.08,   7.60) 05/03/2018   23:14:34  ( -70.11,   7.61)    3.24                31
 05/06/2018   13:51:23   ( -70.81, 149.28) 05/06/2018   13:50:13  ( -70.86, 147.56)   63.08                70
 05/06/2018   14:41:00   (  70.16, -44.04) 05/06/2018   14:40:46  (  70.18, -44.04)    2.07                14
 05/06/2018   15:30:30   ( -70.05, 123.44) 05/06/2018   15:31:28  ( -70.08, 123.43)    2.71                58
 05/09/2018   06:08:01   ( -70.24, -95.69) 05/09/2018   06:06:57  ( -70.25, -95.69)    1.49                64
 05/09/2018   06:57:28   (  70.13,  71.79) 05/09/2018   06:57:41  (  70.15,  71.77)    2.83                13
 05/09/2018   07:47:05   ( -69.64,-121.26) 05/09/2018   07:48:15  ( -69.62,-120.12)   44.00                70
 05/11/2018   22:24:29   ( -70.20,  20.13) 05/11/2018   22:23:52  ( -70.22,  20.12)    2.23                37
 05/11/2018   23:13:56   (  70.09,-172.38) 05/11/2018   23:14:35  (  70.07,-172.33)    2.68                39