Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 9 14.  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)
 09/14/2019   14:42:11   (  70.09, -44.03) 09/14/2019   14:41:15  (  70.10, -43.96)    2.97                56
 09/14/2019   15:31:41   ( -69.98, 123.46) 09/14/2019   15:31:57  ( -70.00, 123.51)    2.94                16
 09/14/2019   16:21:21   (  69.16, -70.02) 09/14/2019   16:22:28  (  69.20, -68.02)   79.37                67
 09/17/2019   06:58:42   (  70.07,  71.82) 09/17/2019   06:58:10  (  70.09,  71.82)    3.17                32
 09/17/2019   07:48:12   ( -69.96,-120.70) 09/17/2019   07:48:51  ( -69.94,-120.63)    3.46                39
 09/19/2019   22:25:39   ( -70.55,  20.75) 09/19/2019   22:24:28  ( -70.56,  19.56)   44.16                71
 09/19/2019   23:15:13   (  70.05,-172.33) 09/19/2019   23:15:04  (  70.04,-172.31)    1.85                 9
 09/20/2019   00:04:43   ( -69.95,  -4.83) 09/20/2019   00:05:46  ( -69.94,  -4.84)    1.96                63
 09/22/2019   14:42:17   ( -70.11, 135.98) 09/22/2019   14:41:14  ( -70.14, 136.00)    2.96                63
 09/22/2019   15:31:44   (  70.00, -56.53) 09/22/2019   15:31:57  (  69.98, -56.46)    3.33                13
 09/22/2019   16:21:22   ( -69.46, 110.36) 09/22/2019   16:22:31  ( -69.46, 111.64)   49.87                69
 09/25/2019   06:58:49   ( -70.06,-108.21) 09/25/2019   06:58:08  ( -70.08,-108.14)    3.12                41
 09/25/2019   07:48:15   (  70.01,  59.35) 09/25/2019   07:48:52  (  69.98,  59.32)    2.91                37
 09/27/2019   22:25:41   (  70.67,-159.08) 09/27/2019   22:24:32  (  70.77,-160.77)   63.05                69
 09/27/2019   23:15:20   ( -70.08,   7.69) 09/27/2019   23:15:03  ( -70.08,   7.64)    2.09                17
 09/28/2019   00:04:47   (  69.97, 175.17) 09/28/2019   00:05:47  (  69.98, 175.09)    3.34                60