Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 4 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)
 04/11/2023   21:10:19   ( -70.37,  38.87) 04/11/2023   21:11:06  ( -70.36,  38.93)    2.38                47
 04/11/2023   22:01:03   (  70.24,-153.63) 04/11/2023   22:00:33  (  70.26,-153.57)    2.49                30
 04/14/2023   12:36:46   (  71.09, -13.86) 04/14/2023   12:37:53  (  71.00, -11.86)   73.09                67
 04/14/2023   13:27:15   ( -70.32, 154.72) 04/14/2023   13:27:33  ( -70.34, 154.78)    3.09                18
 04/14/2023   14:17:59   (  70.20, -37.78) 04/14/2023   14:17:01  (  70.18, -37.80)    2.58                58
 04/17/2023   04:53:28   (  70.37, 103.09) 04/17/2023   04:54:29  (  70.40, 103.12)    2.80                61
 04/17/2023   05:44:10   ( -70.28, -89.45) 04/17/2023   05:43:59  ( -70.29, -89.41)    1.71                11
 04/17/2023   06:34:44   (  69.64,  78.84) 04/17/2023   06:33:35  (  69.68,  77.39)   56.24                69
 04/19/2023   21:10:24   (  70.35,-141.10) 04/19/2023   21:10:55  (  70.37,-141.03)    2.97                31
 04/19/2023   22:01:06   ( -70.26,  26.37) 04/19/2023   22:00:25  ( -70.26,  26.44)    2.89                41
 04/22/2023   12:36:40   ( -70.66, 166.88) 04/22/2023   12:37:51  ( -70.58, 167.53)   25.45                71
 04/22/2023   13:27:19   (  70.29, -25.22) 04/22/2023   13:27:21  (  70.31, -25.23)    2.18                 2
 04/22/2023   14:18:01   ( -70.19, 142.25) 04/22/2023   14:16:51  ( -70.20, 142.25)    1.08                70