Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 7 19.  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   (  70.25,  84.48) 07/20/2018   06:06:53  (  70.28,  84.35)    5.86                73
 07/20/2018   06:57:36   ( -70.13,-108.05) 07/20/2018   06:57:34  ( -70.14,-108.12)    2.75                 2
 07/20/2018   07:47:04   (  69.98,  59.37) 07/20/2018   07:48:17  (  69.96,  59.46)    3.72                73
 07/22/2018   22:24:37   (  70.19,-159.71) 07/22/2018   22:23:49  (  70.21,-159.78)    2.93                48
 07/22/2018   23:14:07   ( -70.08,   7.76) 07/22/2018   23:14:30  ( -70.07,   7.75)    1.58                23
 07/25/2018   14:41:08   (  70.14, -43.91) 07/25/2018   14:40:45  (  70.14, -43.91)    0.35                23
 07/25/2018   15:30:38   ( -70.03, 123.57) 07/25/2018   15:31:27  ( -70.05, 123.55)    2.28                49
 07/28/2018   06:08:10   ( -70.24, -95.53) 07/28/2018   06:06:57  ( -70.24, -95.61)    3.06                73
 07/28/2018   06:57:38   (  70.08,  71.89) 07/28/2018   06:57:40  (  70.08,  71.95)    2.66                 2
 07/28/2018   07:47:08   ( -69.98,-120.63) 07/28/2018   07:48:21  ( -69.93,-120.50)    7.29                73
 07/30/2018   22:24:41   ( -70.19,  20.27) 07/30/2018   22:23:53  ( -70.17,  20.27)    1.59                48
 07/30/2018   23:14:08   (  70.07,-172.24) 07/30/2018   23:14:37  (  70.06,-172.26)    1.40                29