Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 6 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)
 06/20/2018   22:24:22   (  70.14,-159.79) 06/20/2018   22:23:50  (  70.17,-159.76)    3.30                32
 06/20/2018   23:13:52   ( -70.03,   7.68) 06/20/2018   23:14:31  ( -70.04,   7.75)    2.99                39
 06/23/2018   13:51:19   ( -70.62, 149.14) 06/23/2018   13:50:08  ( -70.68, 147.90)   45.92                71
 06/23/2018   14:40:53   (  70.13, -43.93) 06/23/2018   14:40:44  (  70.13, -43.92)    0.48                 9
 06/23/2018   15:30:23   ( -70.02, 123.55) 06/23/2018   15:31:25  ( -70.00, 123.59)    3.03                62
 06/26/2018   06:07:57   ( -70.22, -95.57) 06/26/2018   06:06:54  ( -70.21, -95.59)    1.05                63
 06/26/2018   06:57:24   (  70.11,  71.92) 06/26/2018   06:57:38  (  70.09,  71.92)    2.74                14
 06/26/2018   07:47:02   ( -69.57,-121.20) 06/26/2018   07:48:12  ( -69.59,-120.02)   45.93                70
 06/28/2018   22:24:28   ( -70.15,  20.21) 06/28/2018   22:23:47  ( -70.17,  20.25)    3.07                41
 06/28/2018   23:13:55   (  70.04,-172.30) 06/28/2018   23:14:31  (  70.05,-172.25)    2.41                36
 07/01/2018   13:51:19   (  70.78, -30.61) 07/01/2018   13:50:10  (  70.80, -32.29)   61.37                69
 07/01/2018   14:40:59   ( -70.13, 136.06) 07/01/2018   14:40:41  ( -70.14, 136.09)    1.12                18
 07/01/2018   15:30:26   (  70.02, -56.46) 07/01/2018   15:31:25  (  70.02, -56.42)    1.29                59
 07/04/2018   06:08:00   (  70.20,  84.41) 07/04/2018   06:06:53  (  70.19,  84.46)    2.62                67
 07/04/2018   06:57:30   ( -70.11,-108.09) 07/04/2018   06:57:35  ( -70.10,-108.08)    1.04                 5
 07/04/2018   07:47:03   (  69.66,  58.93) 07/04/2018   07:48:13  (  69.66,  59.88)   36.76                70