Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 2 17.  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)
 02/17/2023   14:17:09   ( -70.24, 142.19) 02/17/2023   14:17:36  ( -70.21, 142.23)    3.30                27
 02/17/2023   15:07:53   (  70.13, -50.33) 02/17/2023   15:07:03  (  70.11, -50.27)    2.83                50
 02/20/2023   05:43:20   (  70.30,  90.55) 02/20/2023   05:44:31  (  70.29,  90.60)    2.53                71
 02/20/2023   06:34:01   ( -70.16,-101.90) 02/20/2023   06:34:01  ( -70.17,-101.94)    2.00                 0
 02/20/2023   07:24:42   (  69.89,  65.82) 02/20/2023   07:23:30  (  69.96,  65.40)   17.46                72
 02/22/2023   22:00:13   (  70.24,-153.56) 02/22/2023   22:00:56  (  70.24,-153.57)    0.59                43
 02/22/2023   22:50:55   ( -70.14,  13.90) 02/22/2023   22:50:26  ( -70.13,  13.90)    1.49                29
 02/25/2023   13:26:35   ( -70.97, 153.73) 02/25/2023   13:27:43  ( -70.85, 155.59)   69.08                68
 02/25/2023   14:17:06   (  70.18, -37.70) 02/25/2023   14:17:20  (  70.19, -37.74)    2.01                14
 02/25/2023   15:07:48   ( -70.09, 129.77) 02/25/2023   15:06:50  ( -70.08, 129.74)    1.46                58
 02/28/2023   05:43:15   ( -70.25, -89.32) 02/28/2023   05:44:16  ( -70.26, -89.38)    2.94                61
 02/28/2023   06:33:59   (  70.14,  78.15) 02/28/2023   06:33:43  (  70.15,  78.10)    2.09                16
 02/28/2023   07:24:31   ( -69.52,-113.59) 02/28/2023   07:23:21  ( -69.60,-115.03)   56.68                70
 03/02/2023   22:00:07   ( -70.22,  26.51) 03/02/2023   22:00:37  ( -70.22,  26.46)    1.94                30
 03/02/2023   22:50:51   (  70.12,-166.02) 03/02/2023   22:50:04  (  70.10,-166.06)    2.83                47