Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 8 19.  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)
 08/20/2023   13:26:16   ( -70.65, 154.28) 08/20/2023   13:27:27  ( -70.50, 155.14)   35.67                71
 08/20/2023   14:16:53   (  70.17, -37.64) 08/20/2023   14:16:58  (  70.19, -37.68)    2.84                 5
 08/20/2023   15:07:35   ( -70.08, 129.81) 08/20/2023   15:06:28  ( -70.08, 129.79)    0.78                67
 08/23/2023   05:43:03   ( -70.29, -89.37) 08/23/2023   05:44:03  ( -70.28, -89.32)    2.25                60
 08/23/2023   06:33:47   (  70.17,  78.11) 08/23/2023   06:33:30  (  70.18,  78.18)    2.36                17
 08/23/2023   07:24:19   ( -69.56,-113.65) 08/23/2023   07:23:09  ( -69.57,-115.03)   53.91                70
 08/25/2023   21:59:56   ( -70.25,  26.47) 08/25/2023   22:00:35  ( -70.24,  26.50)    1.45                39
 08/25/2023   22:50:40   (  70.14,-166.06) 08/25/2023   22:50:02  (  70.13,-166.01)    1.92                38
 08/28/2023   13:26:19   (  70.94, -26.20) 08/28/2023   13:27:27  (  70.83, -24.38)   67.36                68
 08/28/2023   14:16:49   ( -70.21, 142.29) 08/28/2023   14:17:06  ( -70.23, 142.36)    3.54                17
 08/28/2023   15:07:32   (  70.05, -50.16) 08/28/2023   15:06:34  (  70.07, -50.23)    3.04                58
 08/31/2023   05:42:59   (  70.28,  90.63) 08/31/2023   05:44:06  (  70.30,  90.71)    3.12                67
 08/31/2023   06:33:40   ( -70.13,-101.81) 08/31/2023   06:33:37  ( -70.14,-101.89)    3.17                 3
 08/31/2023   07:24:19   (  69.76,  66.05) 08/31/2023   07:23:07  (  69.86,  65.37)   28.46                72