Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 4 30.  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)
 04/30/2023   13:26:57   ( -70.41, 154.79) 04/30/2023   13:27:25  ( -70.39, 154.84)    3.21                28
 04/30/2023   14:17:41   (  70.30, -37.72) 04/30/2023   14:16:52  (  70.29, -37.66)    2.39                49
 05/03/2023   04:53:09   (  70.62, 102.91) 05/03/2023   04:54:20  (  70.55, 103.33)   17.55                71
 05/03/2023   05:43:47   ( -70.32, -89.29) 05/03/2023   05:43:52  ( -70.32, -89.37)    2.76                 5
 05/03/2023   06:34:31   (  70.21,  78.19) 05/03/2023   06:33:19  (  70.22,  78.13)    2.35                72
 05/05/2023   21:09:55   (  70.39,-140.94) 05/05/2023   21:10:47  (  70.40,-141.00)    2.58                52
 05/05/2023   22:00:37   ( -70.30,  26.52) 05/05/2023   22:00:17  ( -70.29,  26.47)    2.21                20
 05/05/2023   22:51:05   (  69.34,-164.75) 05/05/2023   22:49:59  (  69.35,-167.18)   95.31                66
 05/08/2023   13:26:46   (  70.38, -25.14) 05/08/2023   13:27:12  (  70.39, -25.12)    2.13                26
 05/08/2023   14:17:28   ( -70.28, 142.33) 05/08/2023   14:16:42  ( -70.28, 142.35)    0.90                46
 05/11/2023   04:52:57   ( -70.68, -77.15) 05/11/2023   04:54:08  ( -70.58, -76.60)   22.88                71
 05/11/2023   05:43:37   (  70.37,  90.65) 05/11/2023   05:43:37  (  70.36,  90.72)    2.81                 0
 05/11/2023   06:34:19   ( -70.27,-101.87) 05/11/2023   06:33:07  ( -70.25,-101.80)    3.25                72
 05/13/2023   21:09:43   ( -70.41,  39.06) 05/13/2023   21:10:35  ( -70.41,  39.05)    0.34                52
 05/13/2023   22:00:27   (  70.32,-153.49) 05/13/2023   22:00:02  (  70.30,-153.48)    2.39                25