Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 6 12.  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)
 06/12/2023   04:52:44   ( -71.22, -78.05) 06/12/2023   04:53:51  ( -71.16, -75.77)   81.89                67
 06/12/2023   05:43:14   (  70.38,  90.64) 06/12/2023   05:43:31  (  70.35,  90.64)    2.50                17
 06/12/2023   06:33:55   ( -70.23,-101.82) 06/12/2023   06:33:01  ( -70.24,-101.89)    2.80                54
 06/14/2023   21:09:21   ( -70.42,  39.04) 06/14/2023   21:10:31  ( -70.42,  38.98)    2.15                70
 06/14/2023   22:00:05   (  70.31,-153.48) 06/14/2023   21:59:58  (  70.32,-153.53)    1.79                 7
 06/14/2023   22:50:43   ( -70.01,  14.30) 06/14/2023   22:49:30  ( -70.09,  13.79)   21.49                73
 06/17/2023   13:26:13   ( -70.42, 154.82) 06/17/2023   13:26:57  ( -70.42, 154.86)    1.32                44
 06/17/2023   14:16:57   (  70.31, -37.70) 06/17/2023   14:16:24  (  70.31, -37.65)    1.69                33
 06/20/2023   04:52:34   (  71.14, 102.09) 06/20/2023   04:53:42  (  71.04, 104.06)   71.78                68
 06/20/2023   05:43:03   ( -70.37, -89.32) 06/20/2023   05:43:22  ( -70.39, -89.30)    2.36                19
 06/20/2023   06:33:47   (  70.26,  78.15) 06/20/2023   06:32:49  (  70.27,  78.18)    1.84                58
 06/22/2023   21:09:12   (  70.42,-140.94) 06/22/2023   21:10:18  (  70.43,-140.97)    1.98                66
 06/22/2023   21:59:54   ( -70.32,  26.53) 06/22/2023   21:59:48  ( -70.33,  26.51)    1.08                 6
 06/22/2023   22:50:31   (  69.85,-165.44) 06/22/2023   22:49:20  (  69.94,-166.41)   38.17                71
 06/25/2023   13:26:03   (  70.38, -25.11) 06/25/2023   13:26:43  (  70.40, -25.13)    2.09                40
 06/25/2023   14:16:45   ( -70.28, 142.36) 06/25/2023   14:16:13  ( -70.30, 142.35)    1.59                32