Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 4 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)
 04/22/2023   13:27:07   (  70.37, -25.16) 04/22/2023   13:27:30  (  70.37, -25.18)    1.19                23
 04/22/2023   14:17:49   ( -70.28, 142.29) 04/22/2023   14:17:00  ( -70.26, 142.29)    2.22                49
 04/25/2023   04:53:18   ( -70.63, -77.11) 04/25/2023   04:54:29  ( -70.56, -76.68)   18.06                71
 04/25/2023   05:43:59   (  70.36,  90.62) 04/25/2023   05:43:58  (  70.34,  90.65)    2.69                 1
 04/25/2023   06:34:40   ( -70.22,-101.84) 04/25/2023   06:33:28  ( -70.23,-101.88)    1.75                72
 04/27/2023   21:10:06   ( -70.42,  38.99) 04/27/2023   21:10:58  ( -70.42,  39.01)    0.68                52
 04/27/2023   22:00:50   (  70.32,-153.53) 04/27/2023   22:00:25  (  70.31,-153.50)    1.08                25
 04/27/2023   22:51:16   ( -69.38,  15.19) 04/27/2023   22:50:09  ( -69.44,  12.91)   89.20                67
 04/30/2023   13:26:56   ( -70.39, 154.83) 04/30/2023   13:27:23  ( -70.41, 154.88)    3.29                27
 04/30/2023   14:17:40   (  70.28, -37.70) 04/30/2023   14:16:50  (  70.30, -37.64)    2.80                50
 05/03/2023   04:53:07   (  70.57, 103.00) 05/03/2023   04:54:18  (  70.51, 103.29)   12.22                71
 05/03/2023   05:43:47   ( -70.36, -89.35) 05/03/2023   05:43:49  ( -70.35, -89.32)    1.73                 2
 05/03/2023   06:34:29   (  70.16,  78.27) 05/03/2023   06:33:17  (  70.18,  78.08)    7.66                72