Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 4 29.  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)
 05/01/2018   06:08:04   (  70.24,  84.32) 05/01/2018   06:06:56  (  70.22,  84.35)    2.70                68
 05/01/2018   06:57:34   ( -70.13,-108.21) 05/01/2018   06:57:38  ( -70.12,-108.18)    1.47                 4
 05/01/2018   07:47:06   (  69.75,  58.91) 05/01/2018   07:48:17  (  69.75,  59.69)   30.21                71
 05/03/2018   22:24:32   (  70.21,-159.84) 05/03/2018   22:23:51  (  70.19,-159.83)    2.83                41
 05/03/2018   23:14:02   ( -70.10,   7.63) 05/03/2018   23:14:33  ( -70.09,   7.65)    1.79                31
 05/06/2018   13:51:23   ( -70.83, 149.31) 05/06/2018   13:50:14  ( -70.89, 147.51)   65.97                69
 05/06/2018   14:41:00   (  70.18, -44.01) 05/06/2018   14:40:46  (  70.16, -44.01)    2.47                14
 05/06/2018   15:30:30   ( -70.07, 123.47) 05/06/2018   15:31:28  ( -70.05, 123.47)    2.02                58
 05/09/2018   06:08:01   ( -70.26, -95.67) 05/09/2018   06:06:57  ( -70.23, -95.66)    2.92                64
 05/09/2018   06:57:28   (  70.14,  71.82) 05/09/2018   06:57:41  (  70.13,  71.80)    1.56                13
 05/09/2018   07:47:05   ( -69.65,-121.23) 05/09/2018   07:48:15  ( -69.60,-120.09)   44.73                70
 05/11/2018   22:24:28   ( -70.22,  20.15) 05/11/2018   22:23:51  ( -70.20,  20.16)    1.78                37
 05/11/2018   23:13:55   (  70.10,-172.36) 05/11/2018   23:14:35  (  70.10,-172.38)    0.75                40