Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 1 24.  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)
 01/25/2021   06:58:31   (  70.13,  71.88) 01/25/2021   06:57:23  (  70.11,  71.85)    1.92                68
 01/25/2021   07:48:01   ( -70.01,-120.65) 01/25/2021   07:48:05  ( -70.02,-120.68)    1.12                 4
 01/25/2021   08:37:33   (  69.64,  46.47) 01/25/2021   08:38:44  (  69.64,  47.19)   27.65                71
 01/27/2021   23:15:01   (  70.07,-172.33) 01/27/2021   23:14:17  (  70.05,-172.28)    3.11                44
 01/28/2021   00:04:31   ( -69.96,  -4.86) 01/28/2021   00:04:59  ( -69.95,  -4.81)    2.07                28
 01/30/2021   14:41:50   ( -70.87, 137.09) 01/30/2021   14:40:43  ( -70.92, 134.78)   84.22                67
 01/30/2021   15:31:30   (  70.06, -56.47) 01/30/2021   15:31:12  (  70.04, -56.49)    2.55                18
 01/30/2021   16:21:00   ( -69.95, 111.01) 01/30/2021   16:21:54  ( -69.93, 110.98)    2.05                54
 02/02/2021   06:58:33   ( -70.10,-108.18) 02/02/2021   06:57:23  ( -70.13,-108.17)    3.49                70
 02/02/2021   07:48:00   (  69.99,  59.31) 02/02/2021   07:48:06  (  69.98,  59.37)    2.59                 6
 02/02/2021   08:37:33   ( -69.72,-133.43) 02/02/2021   08:38:45  ( -69.71,-132.92)   19.71                72
 02/04/2021   23:15:01   ( -70.08,   7.68) 02/04/2021   23:14:16  ( -70.07,   7.69)    1.44                45
 02/05/2021   00:04:28   (  69.97, 175.17) 02/05/2021   00:05:00  (  69.97, 175.15)    0.66                32