Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 10 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)
 10/20/2023   22:49:53   ( -70.14,  13.99) 10/20/2023   22:50:24  ( -70.15,  13.96)    1.22                31
 10/20/2023   23:40:37   (  70.02,-178.51) 10/20/2023   23:39:51  (  70.04,-178.54)    3.07                46
 10/23/2023   14:16:10   (  70.34, -37.88) 10/23/2023   14:17:22  (  70.29, -37.59)   12.87                72
 10/23/2023   15:06:49   ( -70.10, 129.82) 10/23/2023   15:06:53  ( -70.12, 129.81)    2.37                 4
 10/23/2023   15:57:33   (  69.98, -62.69) 10/23/2023   15:56:21  (  69.96, -62.77)    3.67                72
 10/26/2023   06:33:03   (  70.16,  78.17) 10/26/2023   06:33:52  (  70.16,  78.12)    1.83                49
 10/26/2023   07:23:45   ( -70.07,-114.38) 10/26/2023   07:23:22  ( -70.05,-114.40)    2.14                23
 10/28/2023   21:59:32   ( -71.14,  25.02) 10/28/2023   22:00:38  ( -71.03,  27.67)   96.52                66
 10/28/2023   22:49:59   (  70.14,-166.05) 10/28/2023   22:50:19  (  70.16,-165.99)    2.65                20
 10/28/2023   23:40:41   ( -70.05,   1.41) 10/28/2023   23:39:49  ( -70.05,   1.49)    2.94                52
 10/31/2023   14:16:09   ( -70.20, 142.32) 10/31/2023   14:17:18  ( -70.23, 142.36)    3.27                69
 10/31/2023   15:06:53   (  70.08, -50.20) 10/31/2023   15:06:45  (  70.11, -50.16)    3.30                 8
 10/31/2023   15:57:31   ( -69.78, 117.58) 10/31/2023   15:56:18  ( -69.84, 117.09)   19.82                73