Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 1 2.  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)
 01/03/2018   22:25:28   ( -70.51,  20.64) 01/03/2018   22:24:17  ( -70.58,  19.52)   42.48                71
 01/03/2018   23:15:01   (  70.08,-172.34) 01/03/2018   23:14:53  (  70.05,-172.35)    3.10                 8
 01/04/2018   00:04:31   ( -69.97,  -4.87) 01/04/2018   00:05:35  ( -69.96,  -4.89)    1.04                64
 01/06/2018   14:42:02   ( -70.13, 135.97) 01/06/2018   14:41:01  ( -70.12, 136.01)    1.74                61
 01/06/2018   15:31:29   (  70.03, -56.53) 01/06/2018   15:31:45  (  70.02, -56.51)    1.39                16
 01/06/2018   16:21:08   ( -69.42, 110.27) 01/06/2018   16:22:17  ( -69.39, 111.72)   56.90                69
 01/09/2018   06:58:31   ( -70.08,-108.23) 01/09/2018   06:57:54  ( -70.09,-108.16)    3.01                37
 01/09/2018   07:47:58   (  69.97,  59.27) 01/09/2018   07:48:38  (  69.98,  59.32)    2.31                40
 01/11/2018   22:25:23   (  70.51,-159.35) 01/11/2018   22:24:12  (  70.52,-160.37)   37.76                71
 01/11/2018   23:14:59   ( -70.07,   7.65) 01/11/2018   23:14:47  ( -70.05,   7.68)    2.32                12
 01/12/2018   00:04:26   (  69.96, 175.14) 01/12/2018   00:05:31  (  69.95, 175.14)    1.51                65
 01/14/2018   14:41:57   (  70.16, -43.97) 01/14/2018   14:40:59  (  70.17, -44.05)    2.90                58
 01/14/2018   15:31:28   ( -70.00, 123.43) 01/14/2018   15:31:40  ( -70.02, 123.50)    3.08                12
 01/14/2018   16:21:05   (  69.34, -69.83) 01/14/2018   16:22:13  (  69.33, -68.18)   64.83                68