Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 5 26.  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   (  71.08,-146.18) 05/27/2018   21:33:25  (  71.12,-148.64)   88.76                67
 05/27/2018   22:24:16   ( -70.20,  20.13) 05/27/2018   22:23:51  ( -70.19,  20.18)    2.10                25
 05/27/2018   23:13:43   (  70.10,-172.37) 05/27/2018   23:14:36  (  70.13,-172.41)    3.30                53
 05/30/2018   13:51:14   (  70.25, -31.56) 05/30/2018   13:50:04  (  70.27, -31.49)    3.64                70
 05/30/2018   14:40:43   ( -70.19, 135.99) 05/30/2018   14:40:46  ( -70.18, 135.97)    1.27                 3
 05/30/2018   15:30:15   (  69.81, -56.90) 05/30/2018   15:31:26  (  69.85, -56.22)   26.38                71
 06/02/2018   06:07:41   (  70.23,  84.30) 06/02/2018   06:06:59  (  70.26,  84.30)    3.62                42
 06/02/2018   06:57:11   ( -70.12,-108.22) 06/02/2018   06:57:40  ( -70.12,-108.17)    2.16                29
 06/04/2018   21:34:29   ( -70.92,  33.57) 06/04/2018   21:33:20  ( -70.95,  31.66)   69.46                69
 06/04/2018   22:24:07   (  70.21,-159.85) 06/04/2018   22:23:52  (  70.21,-159.84)    0.68                15
 06/04/2018   23:13:37   ( -70.11,   7.63) 06/04/2018   23:14:34  ( -70.12,   7.62)    1.34                57
 06/07/2018   13:51:07   ( -70.30, 148.52) 06/07/2018   13:50:03  ( -70.32, 148.46)    2.78                64
 06/07/2018   14:40:34   (  70.19, -44.00) 06/07/2018   14:40:47  (  70.20, -44.06)    2.74                13
 06/07/2018   15:30:11   ( -69.70, 122.95) 06/07/2018   15:31:21  ( -69.69, 124.03)   41.80                70