Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 4 21.  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)
 04/23/2019   14:41:18   (  70.15, -44.04) 04/23/2019   14:40:34  (  70.17, -43.99)    3.13                44
 04/23/2019   15:30:47   ( -70.09, 123.52) 04/23/2019   15:31:16  ( -70.08, 123.47)    2.61                29
 04/26/2019   06:08:08   ( -70.84, -94.77) 04/26/2019   06:06:59  ( -70.90, -96.70)   70.52                69
 04/26/2019   06:57:46   (  70.13,  71.82) 04/26/2019   06:57:31  (  70.16,  71.79)    3.06                15
 04/26/2019   07:47:16   ( -70.03,-120.70) 04/26/2019   07:48:12  ( -70.01,-120.66)    2.46                56
 04/28/2019   22:24:46   ( -70.23,  20.19) 04/28/2019   22:23:42  ( -70.20,  20.18)    3.34                64
 04/28/2019   23:14:13   (  70.11,-172.33) 04/28/2019   23:14:26  (  70.09,-172.34)    2.45                13
 04/29/2019   00:03:50   ( -69.63,  -5.37) 04/29/2019   00:05:01  ( -69.62,  -4.32)   40.59                71
 05/01/2019   14:41:15   ( -70.15, 135.96) 05/01/2019   14:40:39  ( -70.18, 135.98)    2.70                36
 05/01/2019   15:30:41   (  70.09, -56.48) 05/01/2019   15:31:23  (  70.07, -56.55)    3.08                42
 05/04/2019   06:08:10   (  70.39,  84.55) 05/04/2019   06:06:58  (  70.47,  83.96)   23.62                72
 05/04/2019   06:57:43   ( -70.13,-108.19) 05/04/2019   06:57:36  ( -70.15,-108.22)    2.84                 7
 05/04/2019   07:47:10   (  70.00,  59.28) 05/04/2019   07:48:19  (  70.00,  59.32)    1.94                69