Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 3 13.  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)
 03/13/2023   13:26:42   ( -70.32, 154.75) 03/13/2023   13:27:51  ( -70.34, 154.79)    2.89                69
 03/13/2023   14:17:26   (  70.20, -37.75) 03/13/2023   14:17:19  (  70.18, -37.79)    2.19                 7
 03/13/2023   15:08:04   ( -69.90, 130.02) 03/13/2023   15:06:51  ( -69.96, 129.53)   20.02                73
 03/16/2023   05:43:41   ( -70.31, -89.47) 03/16/2023   05:44:21  ( -70.29, -89.41)    2.88                40
 03/16/2023   06:34:25   (  70.18,  78.03) 03/16/2023   06:33:48  (  70.18,  78.08)    1.92                37
 03/18/2023   21:10:05   (  70.76,-141.76) 03/18/2023   21:11:15  (  70.62,-140.67)   42.96                70
 03/18/2023   22:00:38   ( -70.26,  26.38) 03/18/2023   22:00:49  ( -70.24,  26.40)    1.61                11
 03/18/2023   22:51:22   (  70.13,-166.13) 03/18/2023   22:50:16  (  70.13,-166.11)    0.62                66
 03/21/2023   13:26:54   (  70.31, -25.26) 03/21/2023   13:27:47  (  70.30, -25.27)    1.01                53
 03/21/2023   14:17:36   ( -70.22, 142.20) 03/21/2023   14:17:17  ( -70.20, 142.22)    2.43                19
 03/21/2023   15:08:05   (  69.30, -49.13) 03/21/2023   15:06:58  (  69.31, -51.36)   87.45                67
 03/24/2023   05:43:51   (  70.24,  90.62) 03/24/2023   05:44:14  (  70.25,  90.56)    3.16                23
 03/24/2023   06:34:33   ( -70.14,-101.92) 03/24/2023   06:33:44  ( -70.15,-101.96)    1.89                49
 03/26/2023   21:10:05   ( -70.34,  38.91) 03/26/2023   21:11:13  ( -70.33,  38.91)    1.60                68
 03/26/2023   22:00:49   (  70.23,-153.60) 03/26/2023   22:00:40  (  70.21,-153.62)    2.39                 9
 03/26/2023   22:51:26   ( -69.87,  14.26) 03/26/2023   22:50:14  ( -69.89,  13.56)   26.94                72