Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 9 11.  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)
 09/13/2023   14:16:36   ( -70.23, 142.28) 09/13/2023   14:17:15  ( -70.20, 142.30)    3.25                39
 09/13/2023   15:07:20   (  70.12, -50.25) 09/13/2023   15:06:42  (  70.10, -50.20)    3.20                38
 09/16/2023   05:42:58   (  70.92,  89.62) 09/16/2023   05:44:06  (  70.79,  91.42)   67.47                68
 09/16/2023   06:33:28   ( -70.19,-101.89) 09/16/2023   06:33:45  ( -70.19,-101.84)    2.21                17
 09/16/2023   07:24:11   (  70.04,  65.65) 09/16/2023   07:23:13  (  70.03,  65.58)    3.15                58
 09/18/2023   21:59:38   (  70.27,-153.55) 09/18/2023   22:00:45  (  70.25,-153.49)    2.94                67
 09/18/2023   22:50:20   ( -70.17,  13.92) 09/18/2023   22:50:15  ( -70.15,  13.99)    3.30                 5
 09/18/2023   23:40:58   (  69.75,-178.14) 09/18/2023   23:39:46  (  69.82,-178.83)   27.66                72
 09/21/2023   14:16:28   (  70.20, -37.67) 09/21/2023   14:17:14  (  70.18, -37.71)    2.72                46
 09/21/2023   15:07:10   ( -70.10, 129.81) 09/21/2023   15:06:44  ( -70.08, 129.77)    2.24                26
 09/24/2023   06:33:20   (  70.19,  78.11) 09/24/2023   06:33:42  (  70.19,  78.19)    2.94                22
 09/24/2023   07:24:01   ( -70.03,-114.32) 09/24/2023   07:23:13  ( -70.04,-114.40)    2.83                48