Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 6 15.  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)
 06/18/2018   06:07:51   (  70.19,  84.39) 06/18/2018   06:06:56  (  70.18,  84.45)    2.46                55
 06/18/2018   06:57:21   ( -70.08,-108.13) 06/18/2018   06:57:38  ( -70.10,-108.11)    2.55                17
 06/18/2018   07:47:02   (  69.20,  58.32) 06/18/2018   07:48:08  (  69.23,  60.48)   85.29                66
 06/20/2018   22:24:21   (  70.18,-159.74) 06/20/2018   22:23:50  (  70.19,-159.79)    1.97                31
 06/20/2018   23:13:51   ( -70.07,   7.74) 06/20/2018   23:14:31  ( -70.06,   7.73)    1.94                40
 06/23/2018   13:51:19   ( -70.60, 149.11) 06/23/2018   13:50:08  ( -70.69, 147.89)   46.29                71
 06/23/2018   14:40:52   (  70.16, -43.88) 06/23/2018   14:40:44  (  70.14, -43.95)    3.07                 8
 06/23/2018   15:30:23   ( -70.01, 123.53) 06/23/2018   15:31:25  ( -70.01, 123.58)    1.97                62
 06/26/2018   06:07:57   ( -70.20, -95.59) 06/26/2018   06:06:54  ( -70.23, -95.60)    2.49                63
 06/26/2018   06:57:24   (  70.09,  71.89) 06/26/2018   06:57:38  (  70.10,  71.89)    1.76                14
 06/26/2018   07:47:02   ( -69.55,-121.22) 06/26/2018   07:48:11  ( -69.55,-119.96)   49.25                69
 06/28/2018   22:24:28   ( -70.18,  20.26) 06/28/2018   22:23:48  ( -70.18,  20.23)    0.89                40
 06/28/2018   23:13:55   (  70.07,-172.26) 06/28/2018   23:14:32  (  70.07,-172.28)    0.54                37