Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 15.  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)
 07/17/2017   06:58:15   ( -70.13,-108.07) 07/17/2017   06:57:27  ( -70.16,-108.12)    3.23                48
 07/17/2017   07:47:42   (  70.03,  59.44) 07/17/2017   07:48:11  (  70.04,  59.36)    2.89                29
 07/19/2017   22:25:00   (  71.04,-158.46) 07/19/2017   22:23:54  (  71.06,-161.13)   96.54                66
 07/19/2017   23:14:46   ( -70.06,   7.70) 07/19/2017   23:14:19  ( -70.08,   7.78)    3.56                27
 07/20/2017   00:04:13   (  69.95, 175.20) 07/20/2017   00:05:03  (  69.97, 175.25)    2.64                50
 07/22/2017   14:41:45   (  70.25, -43.78) 07/22/2017   14:40:33  (  70.26, -44.04)    9.83                72
 07/22/2017   15:31:17   ( -70.03, 123.54) 07/22/2017   15:31:13  ( -70.05, 123.59)    2.97                 4
 07/22/2017   16:20:44   (  69.92, -68.97) 07/22/2017   16:21:57  (  69.95, -68.94)    2.97                73
 07/25/2017   06:58:17   (  70.16,  71.97) 07/25/2017   06:57:25  (  70.14,  71.92)    2.85                52
 07/25/2017   07:47:47   ( -70.06,-120.55) 07/25/2017   07:48:07  ( -70.03,-120.60)    3.44                20
 07/25/2017   08:37:29   (  69.11,  45.82) 07/25/2017   08:38:35  (  69.08,  48.09)   90.17                66
 07/27/2017   23:14:48   (  70.12,-172.21) 07/27/2017   23:14:19  (  70.12,-172.28)    2.44                29
 07/28/2017   00:04:18   ( -70.02,  -4.72) 07/28/2017   00:05:01  ( -70.01,  -4.79)    3.03                43