Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 4 7.  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)
 04/09/2023   04:53:25   ( -70.53, -77.17) 04/09/2023   04:54:37  ( -70.45, -76.82)   15.97                72
 04/09/2023   05:44:06   (  70.25,  90.59) 04/09/2023   05:44:06  (  70.24,  90.52)    2.82                 0
 04/09/2023   06:34:48   ( -70.17,-101.97) 04/09/2023   06:33:35  ( -70.18,-101.93)    1.80                73
 04/11/2023   21:10:19   ( -70.37,  38.86) 04/11/2023   21:11:06  ( -70.35,  38.92)    3.14                47
 04/11/2023   22:01:03   (  70.25,-153.64) 04/11/2023   22:00:33  (  70.24,-153.59)    1.89                30
 04/14/2023   12:36:45   (  71.04, -13.78) 04/14/2023   12:37:53  (  70.98, -11.88)   68.99                68
 04/14/2023   13:27:15   ( -70.32, 154.71) 04/14/2023   13:27:33  ( -70.32, 154.76)    1.80                18
 04/14/2023   14:17:59   (  70.20, -37.79) 04/14/2023   14:17:00  (  70.21, -37.75)    1.88                59
 04/17/2023   04:53:29   (  70.38, 103.09) 04/17/2023   04:54:30  (  70.37, 103.08)    0.69                61
 04/17/2023   05:44:11   ( -70.28, -89.45) 04/17/2023   05:44:00  ( -70.26, -89.44)    2.28                11
 04/17/2023   06:34:45   (  69.64,  78.84) 04/17/2023   06:33:35  (  69.71,  77.43)   54.92                70
 04/19/2023   21:10:24   (  70.35,-141.09) 04/19/2023   21:10:55  (  70.33,-141.09)    2.27                31
 04/19/2023   22:01:06   ( -70.25,  26.38) 04/19/2023   22:00:25  ( -70.22,  26.39)    3.29                41