Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 5 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)
 05/27/2018   21:34:32   (  71.09,-146.17) 05/27/2018   21:33:25  (  71.11,-148.63)   88.65                67
 05/27/2018   22:24:16   ( -70.21,  20.14) 05/27/2018   22:23:51  ( -70.19,  20.19)    3.18                25
 05/27/2018   23:13:43   (  70.10,-172.36) 05/27/2018   23:14:36  (  70.12,-172.40)    2.12                53
 05/30/2018   13:51:14   (  70.25, -31.55) 05/30/2018   13:50:04  (  70.26, -31.47)    2.93                70
 05/30/2018   14:40:43   ( -70.20, 136.01) 05/30/2018   14:40:46  ( -70.18, 135.98)    2.76                 3
 05/30/2018   15:30:15   (  69.81, -56.89) 05/30/2018   15:31:26  (  69.85, -56.21)   26.21                71
 06/02/2018   06:07:41   (  70.24,  84.31) 06/02/2018   06:06:59  (  70.26,  84.31)    1.98                42
 06/02/2018   06:57:11   ( -70.13,-108.21) 06/02/2018   06:57:40  ( -70.11,-108.15)    2.92                29
 06/04/2018   21:34:29   ( -70.93,  33.58) 06/04/2018   21:33:21  ( -70.99,  31.58)   72.76                68
 06/04/2018   22:24:07   (  70.22,-159.84) 06/04/2018   22:23:52  (  70.20,-159.83)    2.42                15
 06/04/2018   23:13:37   ( -70.12,   7.65) 06/04/2018   23:14:34  ( -70.11,   7.63)    1.13                57
 06/07/2018   13:51:07   ( -70.31, 148.54) 06/07/2018   13:50:03  ( -70.31, 148.47)    2.59                64
 06/07/2018   14:40:34   (  70.20, -43.99) 06/07/2018   14:40:47  (  70.19, -44.05)    2.20                13
 06/07/2018   15:30:11   ( -69.71, 122.97) 06/07/2018   15:31:21  ( -69.68, 124.05)   41.90                70