Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 22.  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)
 06/23/2017   06:58:08   (  70.13,  71.92) 06/23/2017   06:57:33  (  70.12,  71.89)    1.62                35
 06/23/2017   07:47:38   ( -70.01,-120.61) 06/23/2017   07:48:14  ( -70.00,-120.60)    1.97                36
 06/25/2017   22:25:02   ( -70.66,  20.93) 06/25/2017   22:23:52  ( -70.73,  19.38)   57.55                70
 06/25/2017   23:14:38   (  70.06,-172.29) 06/25/2017   23:14:26  (  70.08,-172.28)    2.16                12
 06/26/2017   00:04:08   ( -69.95,  -4.82) 06/26/2017   00:05:07  ( -69.95,  -4.76)    2.15                59
 06/28/2017   14:41:41   ( -70.15, 136.07) 06/28/2017   14:40:36  ( -70.17, 136.06)    1.64                65
 06/28/2017   15:31:08   (  70.05, -56.43) 06/28/2017   15:31:20  (  70.04, -56.44)    0.65                12
 06/28/2017   16:20:44   ( -69.61, 110.59) 06/28/2017   16:21:55  ( -69.59, 111.55)   37.03                71
 07/01/2017   06:58:11   ( -70.14,-108.07) 07/01/2017   06:57:30  ( -70.13,-108.10)    1.88                41
 07/01/2017   07:47:38   (  70.03,  59.42) 07/01/2017   07:48:14  (  70.01,  59.39)    2.77                36
 07/03/2017   22:25:02   (  70.72,-158.97) 07/03/2017   22:23:53  (  70.76,-160.65)   61.97                69
 07/03/2017   23:14:42   ( -70.06,   7.71) 07/03/2017   23:14:24  ( -70.09,   7.73)    2.68                18
 07/04/2017   00:04:09   (  69.95, 175.20) 07/04/2017   00:05:08  (  69.97, 175.21)    2.48                59
 07/06/2017   14:41:41   (  70.14, -43.93) 07/06/2017   14:40:35  (  70.15, -43.90)    1.21                66
 07/06/2017   15:31:11   ( -70.04, 123.56) 07/06/2017   15:31:17  ( -70.05, 123.56)    0.93                 6
 07/06/2017   16:20:44   (  69.60, -69.41) 07/06/2017   16:21:54  (  69.57, -68.41)   38.92                70