Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 9 20.  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)
 09/21/2023   14:16:29   (  70.23, -37.71) 09/21/2023   14:17:13  (  70.22, -37.66)    2.24                44
 09/21/2023   15:07:10   ( -70.08, 129.83) 09/21/2023   15:06:43  ( -70.11, 129.82)    3.29                27
 09/24/2023   06:33:20   (  70.17,  78.15) 09/24/2023   06:33:42  (  70.14,  78.12)    3.41                22
 09/24/2023   07:24:02   ( -70.07,-114.38) 09/24/2023   07:23:11  ( -70.09,-114.32)    2.78                51
 09/26/2023   21:59:28   ( -70.33,  26.37) 09/26/2023   22:00:40  ( -70.31,  26.60)    9.23                72
 09/26/2023   22:50:10   (  70.13,-166.00) 09/26/2023   22:50:08  (  70.14,-165.99)    1.31                 2
 09/26/2023   23:40:51   ( -69.97,   1.55) 09/26/2023   23:39:39  ( -69.98,   1.41)    5.13                72
 09/29/2023   14:16:17   ( -70.19, 142.37) 09/29/2023   14:17:08  ( -70.21, 142.36)    2.62                51
 09/29/2023   15:07:01   (  70.09, -50.17) 09/29/2023   15:06:35  (  70.10, -50.15)    0.86                26
 09/29/2023   15:57:27   ( -69.14, 118.53) 09/29/2023   15:56:20  ( -69.17, 116.21)   91.80                67
 10/02/2023   06:33:08   ( -70.16,-101.81) 10/02/2023   06:33:35  ( -70.14,-101.84)    2.84                27
 10/02/2023   07:23:52   (  70.07,  65.65) 10/02/2023   07:23:01  (  70.08,  65.71)    2.65                51