Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 5 17.  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)
 05/19/2018   22:24:21   (  70.21,-159.85) 05/19/2018   22:23:53  (  70.23,-159.89)    2.91                28
 05/19/2018   23:13:51   ( -70.09,   7.62) 05/19/2018   23:14:34  ( -70.09,   7.65)    1.42                43
 05/22/2018   13:51:19   ( -70.42, 148.69) 05/22/2018   13:50:06  ( -70.44, 148.25)   16.33                73
 05/22/2018   14:40:49   (  70.15, -44.06) 05/22/2018   14:40:47  (  70.17, -44.02)    2.23                 2
 05/22/2018   15:30:18   ( -70.10, 123.50) 05/22/2018   15:31:29  ( -70.07, 123.44)    3.22                71
 05/25/2018   06:07:49   ( -70.25, -95.67) 05/25/2018   06:06:58  ( -70.27, -95.71)    1.74                51
 05/25/2018   06:57:16   (  70.14,  71.81) 05/25/2018   06:57:42  (  70.16,  71.77)    1.93                26
 05/25/2018   07:47:02   ( -69.16,-121.90) 05/25/2018   07:48:07  ( -69.16,-119.45)   96.78                65
 05/27/2018   21:34:32   (  71.06,-146.21) 05/27/2018   21:33:25  (  71.14,-148.68)   89.22                67
 05/27/2018   22:24:16   ( -70.19,  20.11) 05/27/2018   22:23:51  ( -70.20,  20.16)    2.25                25
 05/27/2018   23:13:43   (  70.08,-172.40) 05/27/2018   23:14:35  (  70.09,-172.36)    2.47                52
 05/30/2018   13:51:13   (  70.28, -31.51) 05/30/2018   13:50:04  (  70.29, -31.52)    1.62                69
 05/30/2018   14:40:43   ( -70.18, 135.98) 05/30/2018   14:40:46  ( -70.20, 135.95)    2.34                 3
 05/30/2018   15:30:14   (  69.84, -56.85) 05/30/2018   15:31:25  (  69.82, -56.18)   25.92                71