Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 19.  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)
 12/19/2019   14:42:00   (  70.73, -43.11) 12/19/2019   14:40:51  (  70.74, -44.89)   65.22                69
 12/19/2019   15:31:40   ( -70.07, 123.56) 12/19/2019   15:31:22  ( -70.07, 123.48)    2.83                18
 12/19/2019   16:21:08   (  69.91, -69.02) 12/19/2019   16:22:05  (  69.90, -68.95)    2.96                57
 12/22/2019   06:58:40   (  70.10,  71.84) 12/22/2019   06:57:32  (  70.09,  71.92)    3.16                68
 12/22/2019   07:48:10   ( -69.99,-120.68) 12/22/2019   07:48:14  ( -70.00,-120.63)    2.07                 4
 12/22/2019   08:37:42   (  69.60,  46.43) 12/22/2019   08:38:53  (  69.62,  47.24)   31.48                71
 12/24/2019   23:15:08   (  70.06,-172.33) 12/24/2019   23:14:24  (  70.07,-172.28)    2.23                44
 12/25/2019   00:04:38   ( -69.96,  -4.84) 12/25/2019   00:05:06  ( -69.98,  -4.82)    2.22                28
 12/27/2019   14:41:56   ( -70.90, 137.15) 12/27/2019   14:40:48  ( -70.95, 134.79)   86.05                68
 12/27/2019   15:31:36   (  70.08, -56.43) 12/27/2019   15:31:17  (  70.06, -56.48)    2.91                19
 12/27/2019   16:21:07   ( -69.92, 110.99) 12/27/2019   16:21:58  ( -69.91, 111.06)    3.29                51
 12/30/2019   06:58:38   ( -70.15,-108.09) 12/30/2019   06:57:26  ( -70.15,-108.15)    2.55                72
 12/30/2019   07:48:05   (  70.03,  59.39) 12/30/2019   07:48:10  (  70.05,  59.31)    3.44                 5
 12/30/2019   08:37:37   ( -69.83,-133.27) 12/30/2019   08:38:50  ( -69.84,-133.06)    8.05                73
 01/01/2020   23:15:07   ( -70.10,   7.73) 01/01/2020   23:14:18  ( -70.08,   7.73)    2.53                49
 01/02/2020   00:04:34   (  69.98, 175.20) 01/02/2020   00:05:02  (  69.98, 175.18)    0.83                28