Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 1 18.  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)
 01/20/2019   06:08:38   ( -70.59, -95.08) 01/20/2019   06:07:27  ( -70.63, -96.37)   47.65                71
 01/20/2019   06:58:12   (  70.10,  71.84) 01/20/2019   06:58:03  (  70.11,  71.77)    2.85                 9
 01/20/2019   07:47:43   ( -69.94,-120.75) 01/20/2019   07:48:44  ( -69.96,-120.69)    3.32                61
 01/22/2019   22:25:15   ( -70.12,  20.11) 01/22/2019   22:24:12  ( -70.14,  20.18)    3.41                63
 01/22/2019   23:14:41   (  70.07,-172.32) 01/22/2019   23:14:56  (  70.04,-172.35)    3.41                15
 01/23/2019   00:04:20   ( -69.47,  -5.52) 01/23/2019   00:05:29  ( -69.46,  -4.19)   51.85                69
 01/25/2019   14:41:43   ( -70.14, 136.02) 01/25/2019   14:41:06  ( -70.13, 135.97)    2.54                37
 01/25/2019   15:31:10   (  70.03, -56.49) 01/25/2019   15:31:50  (  70.02, -56.56)    2.48                40
 01/28/2019   06:08:36   (  70.54,  84.84) 01/28/2019   06:07:25  (  70.58,  83.72)   42.03                71
 01/28/2019   06:58:12   ( -70.11,-108.15) 01/28/2019   06:58:00  ( -70.11,-108.23)    3.09                12
 01/28/2019   07:47:40   (  69.94,  59.25) 01/28/2019   07:48:43  (  69.96,  59.32)    3.31                63
 01/30/2019   22:25:10   (  70.17,-159.82) 01/30/2019   22:24:10  (  70.15,-159.83)    1.97                60
 01/30/2019   23:14:40   ( -70.07,   7.67) 01/30/2019   23:14:52  ( -70.05,   7.64)    2.53                12
 01/31/2019   00:04:17   (  69.40, 174.40) 01/31/2019   00:05:26  (  69.41, 175.89)   58.23                69