Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 27.  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)
 06/28/2017   14:41:41   ( -70.13, 136.04) 06/28/2017   14:40:35  ( -70.13, 136.11)    2.82                66
 06/28/2017   15:31:08   (  70.03, -56.46) 06/28/2017   15:31:20  (  70.06, -56.46)    2.91                12
 06/28/2017   16:20:44   ( -69.59, 110.56) 06/28/2017   16:21:54  ( -69.56, 111.60)   40.36                70
 07/01/2017   06:58:11   ( -70.11,-108.10) 07/01/2017   06:57:29  ( -70.09,-108.05)    2.92                42
 07/01/2017   07:47:38   (  70.01,  59.40) 07/01/2017   07:48:14  (  70.02,  59.37)    1.75                36
 07/03/2017   22:25:02   (  70.69,-159.00) 07/03/2017   22:23:53  (  70.77,-160.67)   61.96                69
 07/03/2017   23:14:41   ( -70.09,   7.75) 07/03/2017   23:14:24  ( -70.11,   7.70)    2.57                17
 07/04/2017   00:04:08   (  69.98, 175.24) 07/04/2017   00:05:08  (  69.99, 175.19)    1.95                60
 07/06/2017   14:41:41   (  70.17, -43.89) 07/06/2017   14:40:36  (  70.16, -43.93)    1.43                65
 07/06/2017   15:31:11   ( -70.06, 123.59) 07/06/2017   15:31:18  ( -70.07, 123.53)    2.41                 7
 07/06/2017   16:20:45   (  69.57, -69.45) 07/06/2017   16:21:55  (  69.59, -68.44)   39.51                70
 07/09/2017   06:58:10   (  70.13,  71.94) 07/09/2017   06:57:29  (  70.13,  71.89)    1.77                41
 07/09/2017   07:47:40   ( -70.03,-120.57) 07/09/2017   07:48:11  ( -70.04,-120.64)    2.76                31