Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 2 1.  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)
 02/02/2021   06:58:32   ( -70.14,-108.11) 02/02/2021   06:57:23  ( -70.13,-108.17)    2.91                69
 02/02/2021   07:48:00   (  69.99,  59.31) 02/02/2021   07:48:07  (  70.02,  59.31)    2.97                 7
 02/02/2021   08:37:32   ( -69.71,-133.44) 02/02/2021   08:38:44  ( -69.71,-132.92)   20.32                72
 02/04/2021   23:15:01   ( -70.07,   7.66) 02/04/2021   23:14:16  ( -70.06,   7.70)    1.62                45
 02/05/2021   00:04:28   (  69.97, 175.16) 02/05/2021   00:05:00  (  69.96, 175.17)    1.38                32
 02/07/2021   14:41:50   (  70.71, -43.16) 02/07/2021   14:40:41  (  70.79, -45.00)   68.04                69
 02/07/2021   15:31:30   ( -70.05, 123.51) 02/07/2021   15:31:11  ( -70.06, 123.48)    1.43                19
 02/07/2021   16:20:57   (  69.94, -69.00) 02/07/2021   16:21:55  (  69.95, -69.06)    2.45                58
 02/10/2021   06:58:29   (  70.13,  71.86) 02/10/2021   06:57:23  (  70.10,  71.86)    2.81                66
 02/10/2021   07:47:59   ( -70.02,-120.65) 02/10/2021   07:48:05  ( -70.00,-120.67)    2.34                 6
 02/10/2021   08:37:32   (  69.58,  46.38) 02/10/2021   08:38:43  (  69.58,  47.27)   34.35                71
 02/12/2021   23:14:58   (  70.09,-172.31) 02/12/2021   23:14:18  (  70.10,-172.37)    2.68                40
 02/13/2021   00:04:28   ( -69.99,  -4.82) 02/13/2021   00:05:00  ( -70.00,  -4.89)    2.94                32