Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 6 18.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 06/20/2023   05:43:03   ( -70.32, -89.25) 06/20/2023   05:43:31  ( -70.32, -89.26)    0.57                28
 06/20/2023   06:33:47   (  70.21,  78.24) 06/20/2023   06:32:58  (  70.21,  78.23)    0.71                49
 06/22/2023   21:09:16   (  70.63,-141.28) 06/22/2023   21:10:27  (  70.54,-140.68)   24.05                71
 06/22/2023   21:59:53   ( -70.27,  26.60) 06/22/2023   22:00:00  ( -70.27,  26.55)    1.87                 7
 06/22/2023   22:50:37   (  70.16,-165.92) 06/22/2023   22:49:27  (  70.16,-165.96)    1.53                70
 06/25/2023   13:26:03   (  70.38, -25.10) 06/25/2023   13:26:59  (  70.35, -25.07)    3.10                56
 06/25/2023   14:16:44   ( -70.23, 142.44) 06/25/2023   14:16:29  ( -70.25, 142.42)    2.04                15
 06/25/2023   15:07:15   (  69.44, -49.06) 06/25/2023   15:06:07  (  69.53, -50.95)   74.16                68
 06/28/2023   05:42:53   (  70.30,  90.81) 06/28/2023   05:43:28  (  70.31,  90.76)    2.37                35
 06/28/2023   06:33:35   ( -70.20,-101.73) 06/28/2023   06:32:58  ( -70.21,-101.76)    1.23                37
 06/30/2023   21:09:12   ( -71.00,  38.13) 06/30/2023   21:10:20  ( -70.90,  39.90)   64.96                68
 06/30/2023   21:59:44   (  70.27,-153.38) 06/30/2023   21:59:56  (  70.29,-153.37)    2.51                12
 06/30/2023   22:50:26   ( -70.18,  14.09) 06/30/2023   22:49:26  ( -70.20,  14.12)    2.53                60