Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2023 4 22.  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)
 04/23/2023   20:45:59   ( -70.47,  45.24) 04/23/2023   20:44:49  ( -70.47,  45.25)    0.99                70
 04/23/2023   21:35:26   (  70.36,-147.27) 04/23/2023   21:35:33  (  70.36,-147.26)    0.87                 7
 04/23/2023   22:24:59   ( -70.09,  19.97) 04/23/2023   22:26:11  ( -70.06,  20.52)   21.06                72
 04/26/2023   13:02:29   ( -70.46, 161.09) 04/26/2023   13:01:41  ( -70.47, 161.04)    2.27                48
 04/26/2023   13:51:56   (  70.35, -31.42) 04/26/2023   13:52:25  (  70.36, -31.48)    2.33                29
 04/29/2023   05:18:59   ( -70.39, -83.13) 04/29/2023   05:18:31  ( -70.42, -83.11)    3.04                28
 04/29/2023   06:08:26   (  70.28,  84.35) 04/29/2023   06:09:15  (  70.31,  84.36)    3.29                49
 05/01/2023   20:45:56   (  70.65,-134.52) 05/01/2023   20:44:44  (  70.69,-135.09)   21.36                72
 05/01/2023   21:35:29   ( -70.38,  32.72) 05/01/2023   21:35:22  ( -70.38,  32.72)    0.20                 7
 05/01/2023   22:24:56   (  70.27,-159.80) 05/01/2023   22:26:06  (  70.28,-159.81)    1.23                70
 05/04/2023   13:02:29   (  70.47, -18.92) 05/04/2023   13:01:31  (  70.46, -18.94)    1.29                58
 05/04/2023   13:51:59   ( -70.37, 148.57) 05/04/2023   13:52:13  ( -70.36, 148.54)    1.73                14
 05/04/2023   14:41:37   (  69.65, -44.80) 05/04/2023   14:42:45  (  69.62, -43.04)   68.22                68