Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 1 16.  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)
 01/16/2023   14:16:58   ( -70.17, 142.25) 01/16/2023   14:17:33  ( -70.16, 142.22)    1.05                35
 01/16/2023   15:07:42   (  70.05, -50.26) 01/16/2023   15:07:00  (  70.06, -50.28)    1.32                42
 01/19/2023   05:43:16   (  70.42,  90.31) 01/19/2023   05:44:27  (  70.37,  90.78)   18.14                71
 01/19/2023   06:33:55   ( -70.16,-101.98) 01/19/2023   06:33:59  ( -70.15,-101.91)    3.10                 4
 01/19/2023   07:24:39   (  70.05,  65.51) 01/19/2023   07:23:26  (  70.04,  65.58)    3.05                73
 01/21/2023   22:00:09   (  70.22,-153.61) 01/21/2023   22:00:55  (  70.19,-153.58)    3.10                46
 01/21/2023   22:50:50   ( -70.07,  13.94) 01/21/2023   22:50:25  ( -70.08,  13.89)    2.43                25
 01/24/2023   13:26:33   ( -70.98, 153.63) 01/24/2023   13:27:41  ( -70.85, 155.64)   74.69                68
 01/24/2023   14:17:03   (  70.14, -37.71) 01/24/2023   14:17:19  (  70.13, -37.77)    2.46                16
 01/24/2023   15:07:45   ( -70.04, 129.76) 01/24/2023   15:06:49  ( -70.02, 129.71)    2.47                56
 01/27/2023   05:43:15   ( -70.23, -89.38) 01/27/2023   05:44:15  ( -70.25, -89.34)    3.10                60
 01/27/2023   06:33:59   (  70.12,  78.09) 01/27/2023   06:33:42  (  70.13,  78.14)    2.07                17
 01/27/2023   07:24:31   ( -69.49,-113.65) 01/27/2023   07:23:21  ( -69.53,-115.06)   55.06                70
 01/29/2023   22:00:10   ( -70.17,  26.48) 01/29/2023   22:00:39  ( -70.15,  26.42)    2.86                29
 01/29/2023   22:50:54   (  70.07,-166.05) 01/29/2023   22:50:05  (  70.09,-166.02)    2.25                49