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   21:10:18   ( -70.33,  38.93) 04/11/2023   21:11:06  ( -70.34,  38.90)    1.60                48
 04/11/2023   22:01:03   (  70.26,-153.65) 04/11/2023   22:00:33  (  70.24,-153.60)    2.67                30
 04/14/2023   12:36:45   (  71.05, -13.79) 04/14/2023   12:37:53  (  70.98, -11.89)   69.38                68
 04/14/2023   13:27:15   ( -70.33, 154.70) 04/14/2023   13:27:33  ( -70.32, 154.75)    3.00                18
 04/14/2023   14:17:59   (  70.21, -37.81) 04/14/2023   14:17:00  (  70.21, -37.76)    1.91                59
 04/17/2023   04:53:29   (  70.39, 103.07) 04/17/2023   04:54:30  (  70.37, 103.08)    2.05                61
 04/17/2023   05:44:10   ( -70.24, -89.39) 04/17/2023   05:44:00  ( -70.26, -89.45)    2.59                10
 04/17/2023   06:34:45   (  69.65,  78.82) 04/17/2023   06:33:35  (  69.71,  77.43)   54.26                70
 04/19/2023   21:10:24   (  70.31,-141.03) 04/19/2023   21:10:56  (  70.33,-141.09)    3.04                32
 04/19/2023   22:01:05   ( -70.22,  26.43) 04/19/2023   22:00:25  ( -70.22,  26.39)    1.64                40
 04/22/2023   12:36:39   ( -70.61, 166.95) 04/22/2023   12:37:51  ( -70.53, 167.46)   20.77                72
 04/22/2023   13:27:19   (  70.29, -25.23) 04/22/2023   13:27:20  (  70.31, -25.22)    2.01                 1
 04/22/2023   14:18:01   ( -70.20, 142.24) 04/22/2023   14:16:50  ( -70.20, 142.26)    1.13                71