Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 10 19.  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)
 10/21/2018   14:41:47   ( -70.14, 136.03) 10/21/2018   14:41:17  ( -70.14, 136.08)    2.15                30
 10/21/2018   15:31:14   (  70.04, -56.48) 10/21/2018   15:32:02  (  70.07, -56.50)    3.34                48
 10/24/2018   06:08:45   (  70.35,  84.57) 10/24/2018   06:07:33  (  70.40,  84.13)   17.21                72
 10/24/2018   06:58:17   ( -70.13,-108.11) 10/24/2018   06:58:11  ( -70.10,-108.10)    3.43                 6
 10/24/2018   07:47:44   (  70.03,  59.38) 10/24/2018   07:48:56  (  70.03,  59.32)    2.56                72
 10/26/2018   22:25:17   (  70.22,-159.73) 10/26/2018   22:24:24  (  70.21,-159.81)    3.36                53
 10/26/2018   23:14:48   ( -70.07,   7.67) 10/26/2018   23:15:05  ( -70.07,   7.72)    1.91                17
 10/27/2018   00:04:29   (  69.18, 174.11) 10/27/2018   00:05:35  (  69.20, 176.29)   86.08                66
 10/29/2018   14:41:48   (  70.15, -43.96) 10/29/2018   14:41:17  (  70.13, -43.91)    3.16                31
 10/29/2018   15:31:18   ( -70.05, 123.52) 10/29/2018   15:31:59  ( -70.04, 123.53)    0.92                41
 11/01/2018   06:08:45   ( -70.51, -95.20) 11/01/2018   06:07:33  ( -70.58, -96.17)   36.77                72
 11/01/2018   06:58:17   (  70.12,  71.88) 11/01/2018   06:58:10  (  70.10,  71.89)    2.73                 7
 11/01/2018   07:47:47   ( -70.02,-120.63) 11/01/2018   07:48:52  ( -70.01,-120.65)    1.61                65