Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 4 17.  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)
 04/18/2019   06:57:50   ( -70.17,-108.13) 04/18/2019   06:57:23  ( -70.14,-108.16)    3.07                27
 04/18/2019   07:47:18   (  70.00,  59.28) 04/18/2019   07:48:07  (  70.02,  59.33)    2.66                49
 04/20/2019   22:24:49   (  70.22,-159.81) 04/20/2019   22:23:38  (  70.23,-159.85)    1.75                71
 04/20/2019   23:14:19   ( -70.11,   7.67) 04/20/2019   23:14:20  ( -70.13,   7.62)    3.08                 1
 04/21/2019   00:03:49   (  69.84, 174.93) 04/21/2019   00:05:01  (  69.86, 175.34)   15.96                72
 04/23/2019   14:41:18   (  70.16, -44.02) 04/23/2019   14:40:34  (  70.17, -44.00)    1.98                44
 04/23/2019   15:30:48   ( -70.06, 123.47) 04/23/2019   15:31:16  ( -70.07, 123.47)    2.17                28
 04/26/2019   06:08:08   ( -70.87, -94.74) 04/26/2019   06:06:59  ( -70.91, -96.72)   72.45                69
 04/26/2019   06:57:46   (  70.15,  71.85) 04/26/2019   06:57:30  (  70.12,  71.85)    3.07                16
 04/26/2019   07:47:17   ( -70.00,-120.74) 04/26/2019   07:48:12  ( -70.02,-120.68)    3.34                55
 04/28/2019   22:24:47   ( -70.20,  20.16) 04/28/2019   22:23:42  ( -70.22,  20.14)    2.31                65
 04/28/2019   23:14:14   (  70.08,-172.37) 04/28/2019   23:14:25  (  70.07,-172.31)    2.57                11
 04/29/2019   00:03:50   ( -69.66,  -5.33) 04/29/2019   00:05:01  ( -69.65,  -4.36)   37.29                71
 05/01/2019   14:41:15   ( -70.19, 136.02) 05/01/2019   14:40:38  ( -70.17, 135.99)    2.72                37
 05/01/2019   15:30:42   (  70.07, -56.51) 05/01/2019   15:31:22  (  70.07, -56.55)    1.68                40