Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 12 10.  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)
 12/10/2023   14:16:09   (  70.69, -38.48) 12/10/2023   14:17:18  (  70.60, -37.12)   50.94                69
 12/10/2023   15:06:41   ( -70.08, 129.80) 12/10/2023   15:06:55  ( -70.10, 129.79)    2.86                14
 12/10/2023   15:57:26   (  70.01, -62.79) 12/10/2023   15:56:22  (  70.00, -62.71)    3.08                64
 12/13/2023   06:32:51   (  70.17,  78.12) 12/13/2023   06:33:56  (  70.17,  78.11)    0.37                65
 12/13/2023   07:23:33   ( -70.08,-114.43) 12/13/2023   07:23:26  ( -70.06,-114.41)    2.80                 7
 12/13/2023   08:14:10   (  69.59,  53.61) 12/13/2023   08:12:59  (  69.62,  52.63)   37.86                71
 12/15/2023   22:49:43   (  70.13,-166.04) 12/15/2023   22:50:27  (  70.15,-166.03)    2.76                44
 12/15/2023   23:40:25   ( -70.04,   1.42) 12/15/2023   23:39:57  ( -70.05,   1.45)    1.87                28
 12/18/2023   15:06:35   (  70.10, -50.21) 12/18/2023   15:06:58  (  70.12, -50.20)    3.10                23
 12/18/2023   15:57:17   ( -70.00, 117.25) 12/18/2023   15:56:28  ( -70.02, 117.29)    2.67                49
 12/21/2023   06:32:48   ( -70.44,-102.27) 12/21/2023   06:33:59  ( -70.35,-101.64)   25.20                71
 12/21/2023   07:23:27   (  70.07,  65.61) 12/21/2023   07:23:29  (  70.08,  65.61)    0.75                 2
 12/21/2023   08:14:09   ( -69.97,-126.92) 12/21/2023   08:12:59  ( -69.98,-126.90)    1.07                70
 12/23/2023   22:49:34   ( -70.15,  13.96) 12/23/2023   22:50:32  ( -70.13,  13.91)    3.04                58
 12/23/2023   23:40:18   (  70.05,-178.57) 12/23/2023   23:39:58  (  70.07,-178.53)    2.58                20