Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 8 4.  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)
 08/05/2021   06:08:50   ( -70.85, -94.65) 08/05/2021   06:07:42  ( -70.92, -96.89)   82.05                68
 08/05/2021   06:58:30   (  70.04,  71.79) 08/05/2021   06:58:12  (  70.06,  71.79)    2.10                18
 08/05/2021   07:48:00   ( -69.93,-120.73) 08/05/2021   07:48:53  ( -69.92,-120.69)    1.47                53
 08/07/2021   22:25:32   ( -70.15,  20.19) 08/07/2021   22:24:23  ( -70.14,  20.13)    3.13                69
 08/07/2021   23:15:00   (  69.99,-172.39) 08/07/2021   23:15:07  (  70.01,-172.38)    2.58                 7
 08/08/2021   00:04:33   ( -69.72,  -5.14) 08/08/2021   00:05:45  ( -69.72,  -4.62)   19.99                72
 08/10/2021   14:42:03   ( -70.11, 136.00) 08/10/2021   14:41:19  ( -70.09, 135.96)    2.30                44
 08/10/2021   15:31:30   (  69.99, -56.51) 08/10/2021   15:32:03  (  69.97, -56.55)    2.96                33
 08/13/2021   06:08:54   (  70.70,  85.13) 08/13/2021   06:07:45  (  70.77,  83.33)   66.31                69
 08/13/2021   06:58:34   ( -70.06,-108.19) 08/13/2021   06:58:15  ( -70.05,-108.21)    1.00                19
 08/13/2021   07:48:01   (  69.94,  59.29) 08/13/2021   07:48:59  (  69.93,  59.28)    1.09                58
 08/15/2021   22:25:35   (  70.10,-159.88) 08/15/2021   22:24:29  (  70.10,-159.84)    1.85                66
 08/15/2021   23:15:05   ( -70.00,   7.61) 08/15/2021   23:15:11  ( -70.01,   7.62)    0.89                 6
 08/16/2021   00:04:38   (  69.55, 174.64) 08/16/2021   00:05:48  (  69.52, 175.65)   39.59                70