Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 7 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)
 07/19/2023   13:26:16   ( -70.34, 154.84) 07/19/2023   13:27:18  ( -70.33, 154.87)    2.01                62
 07/19/2023   14:17:00   (  70.21, -37.65) 07/19/2023   14:16:45  (  70.23, -37.63)    2.18                15
 07/19/2023   15:07:33   ( -69.66, 130.49) 07/19/2023   15:06:22  ( -69.73, 129.30)   46.77                71
 07/22/2023   05:43:11   ( -70.31, -89.35) 07/22/2023   05:43:47  ( -70.30, -89.28)    3.06                36
 07/22/2023   06:33:55   (  70.19,  78.15) 07/22/2023   06:33:14  (  70.20,  78.22)    2.82                41
 07/24/2023   21:09:31   (  70.74,-141.60) 07/24/2023   21:10:41  (  70.63,-140.54)   41.00                70
 07/24/2023   22:00:05   ( -70.24,  26.52) 07/24/2023   22:00:16  ( -70.24,  26.53)    0.57                11
 07/24/2023   22:50:49   (  70.12,-165.98) 07/24/2023   22:49:43  (  70.14,-165.98)    2.62                66
 07/27/2023   13:26:17   (  70.31, -25.14) 07/27/2023   13:27:13  (  70.33, -25.09)    2.62                56
 07/27/2023   14:16:59   ( -70.22, 142.31) 07/27/2023   14:16:43  ( -70.22, 142.38)    2.76                16
 07/27/2023   15:07:30   (  69.41, -49.18) 07/27/2023   15:06:22  (  69.45, -51.04)   72.91                68
 07/30/2023   05:43:11   (  70.25,  90.71) 07/30/2023   05:43:41  (  70.27,  90.72)    2.00                30
 07/30/2023   06:33:53   ( -70.16,-101.83) 07/30/2023   06:33:11  ( -70.16,-101.80)    1.20                42
 08/01/2023   21:09:27   ( -70.63,  38.57) 08/01/2023   21:10:38  ( -70.52,  39.34)   30.83                71
 08/01/2023   22:00:05   (  70.20,-153.45) 08/01/2023   22:00:09  (  70.19,-153.50)    2.63                 4
 08/01/2023   22:50:47   ( -70.11,  14.01) 08/01/2023   22:49:39  ( -70.08,  13.98)    3.16                68