Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 1 28.  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)
 01/28/2020   15:31:28   (  70.08, -56.44) 01/28/2020   15:31:00  (  70.10, -56.50)    3.06                28
 01/28/2020   16:20:58   ( -69.97, 111.04) 01/28/2020   16:21:41  ( -69.95, 111.04)    1.90                43
 01/31/2020   06:58:28   ( -70.25,-107.96) 01/31/2020   06:57:15  ( -70.34,-108.43)   20.56                73
 01/31/2020   07:47:57   (  70.03,  59.37) 01/31/2020   07:47:55  (  70.02,  59.38)    1.12                 2
 01/31/2020   08:37:27   ( -69.92,-133.15) 01/31/2020   08:38:37  ( -69.93,-133.16)    0.83                70
 02/02/2020   23:14:59   ( -70.09,   7.69) 02/02/2020   23:14:07  ( -70.11,   7.69)    2.47                52
 02/03/2020   00:04:25   (  69.98, 175.18) 02/03/2020   00:04:50  (  70.00, 175.17)    2.52                25
 02/03/2020   00:54:10   ( -69.05, -18.44) 02/03/2020   00:55:16  ( -69.06, -16.15)   91.17                66
 02/05/2020   14:41:42   (  70.96, -42.76) 02/05/2020   14:40:35  (  70.98, -45.25)   90.32                67
 02/05/2020   15:31:27   ( -70.04, 123.50) 02/05/2020   15:31:01  ( -70.04, 123.57)    2.69                26
 02/05/2020   16:20:54   (  69.92, -69.02) 02/05/2020   16:21:45  (  69.93, -68.96)    2.31                51
 02/08/2020   06:58:25   (  70.14,  71.89) 02/08/2020   06:57:15  (  70.12,  71.89)    1.47                70
 02/08/2020   07:47:55   ( -70.03,-120.62) 02/08/2020   07:47:57  ( -70.02,-120.64)    1.49                 2
 02/08/2020   08:37:26   (  69.70,  46.56) 02/08/2020   08:38:37  (  69.70,  47.14)   22.70                71
 02/10/2020   23:14:54   (  70.07,-172.32) 02/10/2020   23:14:10  (  70.06,-172.25)    3.25                44
 02/11/2020   00:04:24   ( -69.97,  -4.83) 02/11/2020   00:04:52  ( -69.96,  -4.78)    2.86                28