Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 5 11.  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)
 05/11/2023   04:53:04   ( -70.89, -77.52) 05/11/2023   04:54:14  ( -70.83, -76.27)   46.17                70
 05/11/2023   05:43:40   (  70.36,  90.65) 05/11/2023   05:43:48  (  70.35,  90.66)    1.67                 8
 05/11/2023   06:34:21   ( -70.22,-101.81) 05/11/2023   06:33:18  ( -70.23,-101.87)    2.69                63
 05/13/2023   21:09:49   ( -70.43,  39.00) 05/13/2023   21:10:49  ( -70.45,  39.03)    1.98                60
 05/13/2023   22:00:33   (  70.32,-153.52) 05/13/2023   22:00:16  (  70.34,-153.47)    2.90                17
 05/13/2023   22:51:05   ( -69.70,  14.74) 05/13/2023   22:49:55  ( -69.74,  13.30)   55.43                70
 05/16/2023   13:26:41   ( -70.40, 154.83) 05/16/2023   13:27:16  ( -70.41, 154.86)    1.58                35
 05/16/2023   14:17:25   (  70.29, -37.70) 05/16/2023   14:16:43  (  70.30, -37.65)    2.00                42
 05/19/2023   04:52:59   (  70.84, 102.56) 05/19/2023   04:54:09  (  70.71, 103.56)   39.20                70
 05/19/2023   05:43:34   ( -70.37, -89.37) 05/19/2023   05:43:43  ( -70.39, -89.29)    3.09                 9
 05/19/2023   06:34:17   (  70.22,  78.18) 05/19/2023   06:33:11  (  70.22,  78.11)    2.71                66
 05/21/2023   21:09:44   (  70.41,-140.97) 05/21/2023   21:10:40  (  70.43,-140.97)    2.77                56
 05/21/2023   22:00:26   ( -70.30,  26.51) 05/21/2023   22:00:10  ( -70.33,  26.51)    2.48                16
 05/21/2023   22:50:57   (  69.52,-165.00) 05/21/2023   22:49:49  (  69.55,-166.93)   75.24                68
 05/24/2023   13:26:37   (  70.41, -25.19) 05/24/2023   13:27:06  (  70.39, -25.14)    2.57                29
 05/24/2023   14:17:19   ( -70.30, 142.29) 05/24/2023   14:16:36  ( -70.29, 142.34)    2.33                43