Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 6 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)
 06/18/2019   14:41:46   ( -70.14, 136.04) 06/18/2019   14:41:00  ( -70.12, 136.00)    3.11                46
 06/18/2019   15:31:14   (  69.98, -56.54) 06/18/2019   15:31:44  (  70.00, -56.51)    1.84                30
 06/21/2019   06:08:35   (  70.85,  85.35) 06/21/2019   06:07:27  (  70.88,  83.23)   77.13                68
 06/21/2019   06:58:17   ( -70.09,-108.15) 06/21/2019   06:57:56  ( -70.11,-108.22)    3.29                21
 06/21/2019   07:47:44   (  69.98,  59.34) 06/21/2019   07:48:40  (  69.99,  59.27)    2.65                56
 06/23/2019   22:25:17   (  70.14,-159.84) 06/23/2019   22:24:08  (  70.13,-159.81)    1.10                69
 06/23/2019   23:14:47   ( -70.03,   7.65) 06/23/2019   23:14:50  ( -70.05,   7.65)    1.59                 3
 06/24/2019   00:04:18   (  69.70, 174.83) 06/24/2019   00:05:29  (  69.66, 175.53)   27.21                71
 06/26/2019   14:41:47   (  70.13, -43.97) 06/26/2019   14:41:04  (  70.13, -44.03)    2.43                43
 06/26/2019   15:31:18   ( -69.97, 123.44) 06/26/2019   15:31:45  ( -69.99, 123.51)    2.84                27
 06/29/2019   06:08:37   ( -70.94, -94.52) 06/29/2019   06:07:30  ( -70.97, -96.93)   87.34                67
 06/29/2019   06:58:18   (  70.06,  71.82) 06/29/2019   06:57:59  (  70.07,  71.82)    1.02                19
 06/29/2019   07:47:48   ( -69.96,-120.69) 06/29/2019   07:48:41  ( -69.98,-120.72)    2.15                53