Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 9 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)
 09/17/2019   06:58:41   (  70.06,  71.81) 09/17/2019   06:58:09  (  70.06,  71.88)    2.49                32
 09/17/2019   07:48:11   ( -69.95,-120.71) 09/17/2019   07:48:51  ( -69.96,-120.66)    2.17                40
 09/19/2019   22:25:38   ( -70.50,  20.68) 09/19/2019   22:24:27  ( -70.53,  19.60)   40.22                71
 09/19/2019   23:15:11   (  70.06,-172.31) 09/19/2019   23:15:04  (  70.06,-172.34)    1.57                 7
 09/20/2019   00:04:41   ( -69.96,  -4.82) 09/20/2019   00:05:46  ( -69.96,  -4.88)    2.24                65
 09/22/2019   14:42:15   ( -70.12, 136.01) 09/22/2019   14:41:14  ( -70.11, 136.04)    1.77                61
 09/22/2019   15:31:42   (  70.01, -56.50) 09/22/2019   15:31:58  (  70.00, -56.49)    0.81                16
 09/22/2019   16:21:21   ( -69.41, 110.31) 09/22/2019   16:22:30  ( -69.38, 111.75)   56.73                69
 09/25/2019   06:58:45   ( -70.12,-108.11) 09/25/2019   06:58:09  ( -70.11,-108.18)    2.89                36
 09/25/2019   07:48:13   (  69.95,  59.29) 09/25/2019   07:48:52  (  69.95,  59.36)    2.72                39
 09/27/2019   22:25:38   (  70.55,-159.25) 09/27/2019   22:24:28  (  70.58,-160.47)   45.53                70
 09/27/2019   23:15:15   ( -70.06,   7.68) 09/27/2019   23:15:02  ( -70.06,   7.67)    0.75                13
 09/28/2019   00:04:42   (  69.95, 175.17) 09/28/2019   00:05:46  (  69.96, 175.13)    1.58                64
 09/30/2019   14:42:16   (  70.10, -44.02) 09/30/2019   14:41:14  (  70.11, -43.96)    2.75                62
 09/30/2019   15:31:46   ( -70.00, 123.48) 09/30/2019   15:31:56  ( -70.01, 123.52)    1.82                10
 09/30/2019   16:21:22   (  69.39, -69.72) 09/30/2019   16:22:31  (  69.43, -68.32)   54.99                69