Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 9 10.  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)
 09/10/2023   21:59:44   ( -70.23,  26.50) 09/10/2023   22:00:45  ( -70.23,  26.46)    1.64                61
 09/10/2023   22:50:28   (  70.12,-166.03) 09/10/2023   22:50:12  (  70.13,-166.04)    0.84                16
 09/10/2023   23:41:00   ( -69.50,   2.21) 09/10/2023   23:39:50  ( -69.57,   0.82)   54.72                70
 09/13/2023   14:16:35   ( -70.19, 142.34) 09/13/2023   14:17:15  ( -70.19, 142.28)    2.27                40
 09/13/2023   15:07:19   (  70.08, -50.19) 09/13/2023   15:06:42  (  70.08, -50.22)    1.24                37
 09/16/2023   05:42:57   (  70.88,  89.68) 09/16/2023   05:44:06  (  70.77,  91.40)   63.98                69
 09/16/2023   06:33:27   ( -70.15,-101.83) 09/16/2023   06:33:45  ( -70.17,-101.86)    2.46                18
 09/16/2023   07:24:11   (  70.05,  65.63) 09/16/2023   07:23:12  (  70.07,  65.63)    1.63                59
 09/18/2023   21:59:37   (  70.23,-153.50) 09/18/2023   22:00:45  (  70.24,-153.51)    1.09                68
 09/18/2023   22:50:19   ( -70.13,  13.98) 09/18/2023   22:50:15  ( -70.14,  13.97)    0.98                 4
 09/18/2023   23:40:58   (  69.76,-178.16) 09/18/2023   23:39:46  (  69.80,-178.85)   26.79                72
 09/21/2023   14:16:29   (  70.22, -37.70) 09/21/2023   14:17:14  (  70.23, -37.65)    2.15                45
 09/21/2023   15:07:11   ( -70.11, 129.78) 09/21/2023   15:06:44  ( -70.13, 129.84)    2.73                27