Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 12 3.  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)
 12/03/2018   06:08:47   ( -70.42, -95.33) 12/03/2018   06:07:35  ( -70.51, -96.14)   31.79                72
 12/03/2018   06:58:18   (  70.11,  71.86) 12/03/2018   06:58:13  (  70.08,  71.85)    3.32                 5
 12/03/2018   07:47:48   ( -69.99,-120.67) 12/03/2018   07:48:55  ( -69.99,-120.71)    1.30                67
 12/05/2018   22:25:19   ( -70.18,  20.20) 12/05/2018   22:24:23  ( -70.19,  20.13)    3.05                56
 12/05/2018   23:14:47   (  70.02,-172.38) 12/05/2018   23:15:06  (  70.02,-172.31)    2.88                19
 12/06/2018   00:04:28   ( -69.30,  -5.73) 12/06/2018   00:05:36  ( -69.30,  -3.93)   70.74                68
 12/08/2018   14:41:48   ( -70.14, 136.03) 12/08/2018   14:41:17  ( -70.14, 135.98)    2.16                31
 12/08/2018   15:31:15   (  70.04, -56.47) 12/08/2018   15:32:01  (  70.03, -56.54)    2.94                46
 12/11/2018   06:08:45   (  70.32,  84.54) 12/11/2018   06:07:33  (  70.39,  84.03)   20.62                72
 12/11/2018   06:58:17   ( -70.10,-108.14) 12/11/2018   06:58:11  ( -70.08,-108.17)    2.51                 6
 12/11/2018   07:47:44   (  69.99,  59.35) 12/11/2018   07:48:55  (  69.98,  59.30)    2.68                71
 12/13/2018   22:25:16   (  70.16,-159.81) 12/13/2018   22:24:23  (  70.14,-159.80)    2.85                53
 12/13/2018   23:14:46   ( -70.06,   7.68) 12/13/2018   23:15:05  ( -70.03,   7.67)    2.65                19
 12/14/2018   00:04:28   (  69.11, 174.05) 12/14/2018   00:05:34  (  69.13, 176.29)   89.04                66
 12/16/2018   14:41:44   (  70.11, -44.00) 12/16/2018   14:41:16  (  70.09, -43.96)    2.19                28
 12/16/2018   15:31:14   ( -70.00, 123.49) 12/16/2018   15:31:58  ( -69.98, 123.52)    2.38                44