Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 6 20.  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   ( -70.34, -89.28) 06/20/2023   05:43:30  ( -70.35, -89.21)    2.60                27
 06/20/2023   06:33:47   (  70.22,  78.21) 06/20/2023   06:32:58  (  70.19,  78.20)    3.44                49
 06/22/2023   21:09:17   (  70.64,-141.30) 06/22/2023   21:10:28  (  70.52,-140.72)   25.94                71
 06/22/2023   21:59:54   ( -70.29,  26.57) 06/22/2023   22:00:00  ( -70.30,  26.59)    0.89                 6
 06/22/2023   22:50:38   (  70.18,-165.94) 06/22/2023   22:49:27  (  70.19,-165.91)    1.62                71
 06/25/2023   13:26:02   (  70.34, -25.05) 06/25/2023   13:26:59  (  70.32, -25.11)    3.30                57
 06/25/2023   14:16:44   ( -70.25, 142.41) 06/25/2023   14:16:28  ( -70.27, 142.45)    2.47                16
 06/25/2023   15:07:15   (  69.45, -49.09) 06/25/2023   15:06:07  (  69.50, -50.99)   74.30                68
 06/28/2023   05:42:53   (  70.31,  90.78) 06/28/2023   05:43:27  (  70.33,  90.78)    1.50                34
 06/28/2023   06:33:35   ( -70.22,-101.76) 06/28/2023   06:32:57  ( -70.22,-101.74)    0.89                38
 06/30/2023   21:09:11   ( -70.97,  38.19) 06/30/2023   21:10:20  ( -70.85,  39.82)   60.63                69
 06/30/2023   21:59:44   (  70.29,-153.40) 06/30/2023   21:59:55  (  70.30,-153.36)    2.20                11
 06/30/2023   22:50:26   ( -70.19,  14.06) 06/30/2023   22:49:25  ( -70.20,  14.13)    2.57                61
 07/03/2023   13:25:51   ( -70.37, 154.94) 07/03/2023   13:26:56  ( -70.37, 154.99)    1.94                65
 07/03/2023   14:16:35   (  70.27, -37.59) 07/03/2023   14:16:23  (  70.25, -37.54)    2.68                12
 07/03/2023   15:07:10   ( -69.80, 130.43) 07/03/2023   15:05:58  ( -69.88, 129.56)   34.30                72