Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 9 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)
 09/22/2019   14:42:15   ( -70.11, 135.99) 09/22/2019   14:41:14  ( -70.11, 136.04)    1.90                61
 09/22/2019   15:31:42   (  70.00, -56.52) 09/22/2019   15:31:58  (  70.00, -56.48)    1.33                16
 09/22/2019   16:21:21   ( -69.40, 110.29) 09/22/2019   16:22:30  ( -69.38, 111.75)   57.26                69
 09/25/2019   06:58:44   ( -70.11,-108.14) 09/25/2019   06:58:08  ( -70.11,-108.18)    1.85                36
 09/25/2019   07:48:11   (  70.00,  59.35) 09/25/2019   07:48:52  (  70.00,  59.29)    2.57                41
 09/27/2019   22:25:38   (  70.53,-159.27) 09/27/2019   22:24:28  (  70.58,-160.47)   44.69                70
 09/27/2019   23:15:15   ( -70.04,   7.65) 09/27/2019   23:15:02  ( -70.06,   7.67)    2.01                13
 09/28/2019   00:04:42   (  69.93, 175.14) 09/28/2019   00:05:46  (  69.96, 175.13)    2.79                64
 09/30/2019   14:42:15   (  70.13, -43.98) 09/30/2019   14:41:14  (  70.12, -43.96)    1.66                61
 09/30/2019   15:31:45   ( -70.03, 123.51) 09/30/2019   15:31:56  ( -70.01, 123.51)    1.79                11
 09/30/2019   16:21:21   (  69.42, -69.68) 09/30/2019   16:22:30  (  69.38, -68.24)   56.33                69
 10/03/2019   06:58:46   (  70.06,  71.80) 10/03/2019   06:58:08  (  70.08,  71.88)    3.49                38
 10/03/2019   07:48:16   ( -69.96,-120.71) 10/03/2019   07:48:50  ( -69.97,-120.65)    2.67                34