Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 10 25.  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)
 10/26/2017   14:42:11   (  70.17, -43.96) 10/26/2017   14:41:27  (  70.14, -44.00)    3.22                44
 10/26/2017   15:31:41   ( -70.05, 123.51) 10/26/2017   15:32:09  ( -70.06, 123.44)    3.11                28
 10/29/2017   06:09:00   ( -70.97, -94.52) 10/29/2017   06:07:53  ( -71.05, -97.00)   90.38                67
 10/29/2017   06:58:41   (  70.11,  71.84) 10/29/2017   06:58:21  (  70.09,  71.85)    1.95                20
 10/29/2017   07:48:11   ( -69.99,-120.69) 10/29/2017   07:49:03  ( -70.01,-120.71)    1.87                52
 10/31/2017   22:25:44   ( -70.14,  20.13) 10/31/2017   22:24:31  ( -70.16,  20.20)    3.25                73
 10/31/2017   23:15:11   (  70.04,-172.38) 10/31/2017   23:15:15  (  70.04,-172.31)    2.63                 4
 11/01/2017   00:04:42   ( -69.87,  -4.98) 11/01/2017   00:05:55  ( -69.85,  -4.71)   10.64                73
 11/03/2017   14:42:13   ( -70.13, 135.98) 11/03/2017   14:41:25  ( -70.11, 136.04)    2.78                48
 11/03/2017   15:31:40   (  70.02, -56.53) 11/03/2017   15:32:09  (  70.00, -56.47)    3.23                29
 11/06/2017   06:09:00   (  70.86,  85.32) 11/06/2017   06:07:52  (  70.95,  83.15)   79.52                68
 11/06/2017   06:58:41   ( -70.10,-108.17) 11/06/2017   06:58:19  ( -70.12,-108.20)    2.04                22
 11/06/2017   07:48:08   (  69.99,  59.32) 11/06/2017   07:49:03  (  70.01,  59.28)    2.25                55