Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 17.  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)   65.39                69
 12/19/2019   15:31:40   ( -70.07, 123.56) 12/19/2019   15:31:22  ( -70.08, 123.48)    3.01                18
 12/19/2019   16:21:08   (  69.91, -69.03) 12/19/2019   16:22:05  (  69.91, -68.96)    2.66                57
 12/22/2019   06:58:40   (  70.10,  71.84) 12/22/2019   06:57:32  (  70.09,  71.91)    2.80                68
 12/22/2019   07:48:10   ( -69.99,-120.67) 12/22/2019   07:48:14  ( -70.00,-120.63)    1.92                 4
 12/22/2019   08:37:42   (  69.60,  46.43) 12/22/2019   08:38:53  (  69.62,  47.24)   31.31                71
 12/24/2019   23:15:08   (  70.06,-172.33) 12/24/2019   23:14:24  (  70.08,-172.29)    2.31                44
 12/25/2019   00:04:38   ( -69.96,  -4.84) 12/25/2019   00:05:06  ( -69.98,  -4.82)    2.07                28
 12/27/2019   14:41:56   ( -70.91, 137.16) 12/27/2019   14:40:48  ( -70.95, 134.78)   86.42                68
 12/27/2019   15:31:36   (  70.08, -56.42) 12/27/2019   15:31:17  (  70.06, -56.49)    3.08                19
 12/27/2019   16:21:07   ( -69.93, 111.00) 12/27/2019   16:21:58  ( -69.91, 111.06)    3.13                51
 12/30/2019   06:58:38   ( -70.16,-108.07) 12/30/2019   06:57:26  ( -70.15,-108.15)    3.16                72
 12/30/2019   07:48:06   (  69.98,  59.32) 12/30/2019   07:48:09  (  70.00,  59.39)    3.04                 3
 12/30/2019   08:37:37   ( -69.83,-133.25) 12/30/2019   08:38:50  ( -69.84,-133.06)    7.46                73