Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 8 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)
 08/20/2023   13:26:16   ( -70.63, 154.32) 08/20/2023   13:27:27  ( -70.52, 155.17)   33.71                71
 08/20/2023   14:16:54   (  70.20, -37.69) 08/20/2023   14:16:58  (  70.21, -37.65)    2.26                 4
 08/20/2023   15:07:36   ( -70.11, 129.76) 08/20/2023   15:06:28  ( -70.10, 129.82)    3.22                68
 08/23/2023   05:43:03   ( -70.27, -89.34) 08/23/2023   05:44:03  ( -70.29, -89.30)    2.74                60
 08/23/2023   06:33:47   (  70.15,  78.15) 08/23/2023   06:33:31  (  70.14,  78.12)    2.23                16
 08/23/2023   07:24:19   ( -69.54,-113.62) 08/23/2023   07:23:09  ( -69.59,-115.01)   54.45                70
 08/25/2023   21:59:55   ( -70.23,  26.49) 08/25/2023   22:00:34  ( -70.25,  26.51)    2.02                39
 08/25/2023   22:50:39   (  70.12,-166.03) 08/25/2023   22:50:01  (  70.14,-165.99)    2.97                38
 08/28/2023   13:26:18   (  70.93, -26.17) 08/28/2023   13:27:26  (  70.83, -24.38)   66.31                68
 08/28/2023   14:16:48   ( -70.20, 142.31) 08/28/2023   14:17:06  ( -70.17, 142.28)    2.80                18
 08/28/2023   15:07:32   (  70.09, -50.22) 08/28/2023   15:06:33  (  70.07, -50.23)    2.85                59
 08/31/2023   05:42:59   (  70.27,  90.65) 08/31/2023   05:44:06  (  70.28,  90.69)    1.97                67
 08/31/2023   06:33:41   ( -70.17,-101.88) 08/31/2023   06:33:36  ( -70.18,-101.82)    2.31                 5
 08/31/2023   07:24:19   (  69.75,  66.06) 08/31/2023   07:23:08  (  69.79,  65.27)   30.65                71
 09/02/2023   21:59:51   (  70.21,-153.48) 09/02/2023   22:00:37  (  70.21,-153.54)    2.31                46
 09/02/2023   22:50:33   ( -70.10,  14.00) 09/02/2023   22:50:07  ( -70.11,  13.95)    1.89                26