Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 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)
 02/28/2018   22:24:53   (  70.94,-158.71) 02/28/2018   22:23:46  (  71.01,-161.07)   85.91                67
 02/28/2018   23:14:36   ( -70.11,   7.70) 02/28/2018   23:14:12  ( -70.10,   7.72)    1.94                24
 03/01/2018   00:04:03   (  70.01, 175.19) 03/01/2018   00:04:57  (  70.02, 175.14)    2.64                54
 03/03/2018   14:41:34   (  70.21, -43.92) 03/03/2018   14:40:23  (  70.18, -43.95)    2.95                71
 03/03/2018   15:31:04   ( -70.10, 123.56) 03/03/2018   15:31:05  ( -70.10, 123.50)    2.27                 1
 03/03/2018   16:20:34   (  69.82, -69.18) 03/03/2018   16:21:46  (  69.82, -68.77)   15.77                72
 03/06/2018   06:58:02   (  70.13,  71.85) 03/06/2018   06:57:14  (  70.14,  71.90)    2.11                48
 03/06/2018   07:47:32   ( -70.02,-120.67) 03/06/2018   07:47:56  ( -70.05,-120.65)    3.46                24
 03/08/2018   23:14:30   (  70.11,-172.30) 03/08/2018   23:14:06  (  70.10,-172.26)    1.90                24
 03/09/2018   00:04:00   ( -70.00,  -4.82) 03/09/2018   00:04:48  ( -70.01,  -4.81)    1.01                48
 03/11/2018   14:41:30   ( -70.25, 136.14) 03/11/2018   14:40:17  ( -70.33, 135.86)   13.57                73
 03/11/2018   15:30:58   (  70.08, -56.46) 03/11/2018   15:30:58  (  70.06, -56.42)    2.51                 0
 03/11/2018   16:20:28   ( -69.98, 111.03) 03/11/2018   16:21:40  ( -69.97, 111.04)    1.08                72