Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 23.  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)
 12/24/2019   23:15:08   (  70.08,-172.30) 12/24/2019   23:14:25  (  70.10,-172.33)    2.46                43
 12/25/2019   00:04:38   ( -69.98,  -4.82) 12/25/2019   00:05:06  ( -69.96,  -4.79)    2.02                28
 12/27/2019   14:41:56   ( -70.92, 137.18) 12/27/2019   14:40:49  ( -70.98, 134.73)   89.14                67
 12/27/2019   15:31:37   (  70.04, -56.47) 12/27/2019   15:31:17  (  70.04, -56.45)    1.38                20
 12/27/2019   16:21:07   ( -69.94, 111.01) 12/27/2019   16:21:59  ( -69.94, 111.01)    0.14                52
 12/30/2019   06:58:38   ( -70.12,-108.14) 12/30/2019   06:57:25  ( -70.13,-108.12)    1.24                73
 12/30/2019   07:48:05   (  70.00,  59.35) 12/30/2019   07:48:09  (  70.02,  59.35)    2.31                 4
 12/30/2019   08:37:36   ( -69.85,-133.24) 12/30/2019   08:38:49  ( -69.82,-133.03)    8.51                73
 01/01/2020   23:15:07   ( -70.07,   7.68) 01/01/2020   23:14:17  ( -70.06,   7.76)    3.21                50
 01/02/2020   00:04:34   (  69.95, 175.16) 01/02/2020   00:05:01  (  69.96, 175.22)    2.29                27
 01/04/2020   14:41:51   (  70.94, -42.78) 01/04/2020   14:40:44  (  70.99, -45.28)   90.81                67
 01/04/2020   15:31:36   ( -70.02, 123.50) 01/04/2020   15:31:10  ( -70.05, 123.56)    3.32                26
 01/04/2020   16:21:02   (  69.96, -68.95) 01/04/2020   16:21:54  (  69.95, -68.99)    1.83                52