Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 9 12.  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   (  70.12, -43.98) 09/14/2019   14:41:15  (  70.10, -43.95)    2.74                56
 09/14/2019   15:31:41   ( -70.02, 123.50) 09/14/2019   15:31:57  ( -70.00, 123.51)    1.99                16
 09/14/2019   16:21:21   (  69.19, -69.98) 09/14/2019   16:22:28  (  69.20, -68.01)   77.57                67
 09/17/2019   06:58:43   (  70.07,  71.82) 09/17/2019   06:58:10  (  70.09,  71.83)    2.71                33
 09/17/2019   07:48:13   ( -69.97,-120.69) 09/17/2019   07:48:52  ( -69.99,-120.70)    2.68                39
 09/19/2019   22:25:40   ( -70.59,  20.80) 09/19/2019   22:24:30  ( -70.66,  19.39)   52.77                70
 09/19/2019   23:15:15   (  70.04,-172.36) 09/19/2019   23:15:04  (  70.04,-172.32)    1.55                11
 09/20/2019   00:04:45   ( -69.94,  -4.86) 09/20/2019   00:05:46  ( -69.93,  -4.84)    0.82                61
 09/22/2019   14:42:19   ( -70.14, 136.01) 09/22/2019   14:41:14  ( -70.14, 136.00)    0.53                65
 09/22/2019   15:31:46   (  70.02, -56.51) 09/22/2019   15:31:58  (  70.04, -56.54)    2.35                12
 09/22/2019   16:21:23   ( -69.54, 110.46) 09/22/2019   16:22:33  ( -69.56, 111.48)   39.83                70
 09/25/2019   06:58:52   ( -70.08,-108.19) 09/25/2019   06:58:08  ( -70.08,-108.15)    1.80                44
 09/25/2019   07:48:19   (  69.97,  59.29) 09/25/2019   07:48:52  (  69.99,  59.31)    2.26                33