Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 30.  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)
 12/30/2019   06:58:38   ( -70.11,-108.15) 12/30/2019   06:57:25  ( -70.13,-108.13)    2.31                73
 12/30/2019   07:48:05   (  70.01,  59.35) 12/30/2019   07:48:09  (  70.02,  59.35)    1.48                 4
 12/30/2019   08:37:36   ( -69.84,-133.25) 12/30/2019   08:38:49  ( -69.82,-133.04)    8.27                73
 01/01/2020   23:15:07   ( -70.07,   7.68) 01/01/2020   23:14:17  ( -70.06,   7.75)    2.85                50
 01/02/2020   00:04:34   (  69.96, 175.17) 01/02/2020   00:05:01  (  69.95, 175.22)    2.23                27
 01/04/2020   14:41:51   (  70.95, -42.77) 01/04/2020   14:40:44  (  70.99, -45.27)   90.99                67
 01/04/2020   15:31:35   ( -70.08, 123.57) 01/04/2020   15:31:10  ( -70.05, 123.55)    3.03                25
 01/04/2020   16:21:02   (  69.97, -68.94) 01/04/2020   16:21:54  (  69.95, -68.99)    2.66                52
 01/07/2020   06:58:34   (  70.13,  71.89) 01/07/2020   06:57:21  (  70.14,  71.87)    1.83                73
 01/07/2020   07:48:04   ( -70.03,-120.62) 01/07/2020   07:48:03  ( -70.04,-120.66)    2.27                 1
 01/07/2020   08:37:33   (  69.80,  46.71) 01/07/2020   08:38:45  (  69.83,  46.96)   10.20                72
 01/09/2020   23:15:02   (  70.07,-172.31) 01/09/2020   23:14:12  (  70.09,-172.27)    2.06                50
 01/10/2020   00:04:32   ( -69.97,  -4.81) 01/10/2020   00:04:54  ( -69.98,  -4.79)    1.21                22
 01/12/2020   15:31:30   (  70.07, -56.43) 01/12/2020   15:31:05  (  70.08, -56.49)    2.77                25
 01/12/2020   16:21:00   ( -69.97, 111.06) 01/12/2020   16:21:47  ( -69.97, 110.99)    2.77                47