Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 4 16.  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   06:57:51   ( -70.15,-108.15) 04/18/2019   06:57:24  ( -70.15,-108.18)    1.10                27
 04/18/2019   07:47:18   (  70.04,  59.34) 04/18/2019   07:48:08  (  70.04,  59.31)    1.48                50
 04/20/2019   22:24:49   (  70.20,-159.83) 04/20/2019   22:23:37  (  70.19,-159.79)    2.20                72
 04/20/2019   23:14:19   ( -70.10,   7.65) 04/20/2019   23:14:19  ( -70.09,   7.68)    1.06                 0
 04/21/2019   00:03:49   (  69.82, 174.91) 04/21/2019   00:05:00  (  69.82, 175.39)   18.66                71
 04/23/2019   14:41:17   (  70.20, -43.96) 04/23/2019   14:40:34  (  70.19, -44.02)    2.63                43
 04/23/2019   15:30:48   ( -70.04, 123.45) 04/23/2019   15:31:15  ( -70.04, 123.53)    3.11                27
 04/26/2019   06:08:08   ( -70.85, -94.75) 04/26/2019   06:06:59  ( -70.92, -96.74)   72.75                69
 04/26/2019   06:57:46   (  70.14,  71.83) 04/26/2019   06:57:30  (  70.13,  71.82)    0.29                16
 04/26/2019   07:47:16   ( -70.04,-120.68) 04/26/2019   07:48:12  ( -70.03,-120.70)    1.28                56
 04/28/2019   22:24:48   ( -70.19,  20.14) 04/28/2019   22:23:42  ( -70.18,  20.21)    2.69                66
 04/28/2019   23:14:15   (  70.07,-172.38) 04/28/2019   23:14:26  (  70.08,-172.33)    2.35                11
 04/29/2019   00:03:51   ( -69.65,  -5.34) 04/29/2019   00:05:02  ( -69.66,  -4.38)   37.21                71