Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 5 19.  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)
 05/19/2023   04:53:00   (  70.85, 102.55) 05/19/2023   04:54:10  (  70.74, 103.60)   40.44                70
 05/19/2023   05:43:33   ( -70.34, -89.31) 05/19/2023   05:43:44  ( -70.35, -89.35)    1.65                11
 05/19/2023   06:34:17   (  70.23,  78.17) 05/19/2023   06:33:11  (  70.25,  78.15)    2.41                66
 05/21/2023   21:09:44   (  70.41,-140.97) 05/21/2023   21:10:42  (  70.39,-141.04)    2.96                58
 05/21/2023   22:00:26   ( -70.31,  26.50) 05/21/2023   22:00:11  ( -70.33,  26.51)    2.06                15
 05/21/2023   22:50:58   (  69.57,-165.08) 05/21/2023   22:49:49  (  69.62,-166.84)   68.72                69
 05/24/2023   13:26:37   (  70.39, -25.17) 05/24/2023   13:27:08  (  70.41, -25.13)    2.75                31
 05/24/2023   14:17:19   ( -70.29, 142.30) 05/24/2023   14:16:38  ( -70.30, 142.34)    1.67                41
 05/27/2023   04:52:53   ( -70.85, -77.44) 05/27/2023   04:54:03  ( -70.73, -76.41)   39.96                70
 05/27/2023   05:43:29   (  70.33,  90.70) 05/27/2023   05:43:35  (  70.35,  90.67)    3.20                 6
 05/27/2023   06:34:11   ( -70.22,-101.82) 05/27/2023   06:33:05  ( -70.24,-101.85)    2.20                66
 05/29/2023   21:09:37   ( -70.42,  39.02) 05/29/2023   21:10:33  ( -70.44,  39.05)    2.92                56
 05/29/2023   22:00:21   (  70.32,-153.51) 05/29/2023   22:00:00  (  70.33,-153.47)    2.02                21
 05/29/2023   22:50:50   ( -69.53,  14.99) 05/29/2023   22:49:42  ( -69.56,  13.09)   73.90                68
 06/01/2023   13:26:30   ( -70.41, 154.80) 06/01/2023   13:26:59  ( -70.40, 154.87)    2.94                29
 06/01/2023   14:17:13   (  70.26, -37.66) 06/01/2023   14:16:26  (  70.29, -37.65)    2.67                47