Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 7 20.  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)
 07/20/2018   06:08:06   (  70.28,  84.52) 07/20/2018   06:06:54  (  70.30,  84.31)    8.32                72
 07/20/2018   06:57:37   ( -70.11,-108.09) 07/20/2018   06:57:34  ( -70.11,-108.08)    0.87                 3
 07/20/2018   07:47:05   (  69.95,  59.34) 07/20/2018   07:48:17  (  69.93,  59.50)    6.64                72
 07/22/2018   22:24:37   (  70.17,-159.75) 07/22/2018   22:23:48  (  70.18,-159.74)    1.32                49
 07/22/2018   23:14:07   ( -70.06,   7.72) 07/22/2018   23:14:29  ( -70.04,   7.80)    3.32                22
 07/25/2018   14:41:08   (  70.12, -43.95) 07/25/2018   14:40:44  (  70.12, -43.87)    2.82                24
 07/25/2018   15:30:38   ( -70.01, 123.53) 07/25/2018   15:31:26  ( -70.02, 123.59)    2.91                48
 07/28/2018   06:08:10   ( -70.28, -95.48) 07/28/2018   06:06:58  ( -70.27, -95.65)    6.51                72
 07/28/2018   06:57:38   (  70.11,  71.93) 07/28/2018   06:57:41  (  70.11,  71.91)    1.21                 3
 07/28/2018   07:47:09   ( -69.95,-120.66) 07/28/2018   07:48:22  ( -69.96,-120.55)    4.48                73
 07/30/2018   22:24:42   ( -70.16,  20.24) 07/30/2018   22:23:53  ( -70.15,  20.29)    2.43                49
 07/30/2018   23:14:09   (  70.05,-172.27) 07/30/2018   23:14:37  (  70.05,-172.23)    1.79                28
 08/02/2018   13:51:29   (  70.92, -30.38) 08/02/2018   13:50:21  (  70.98, -32.59)   80.54                68
 08/02/2018   14:41:11   ( -70.16, 136.11) 08/02/2018   14:40:49  ( -70.14, 136.08)    2.45                22
 08/02/2018   15:30:38   (  70.05, -56.40) 08/02/2018   15:31:33  (  70.04, -56.46)    2.36                55