Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 1 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)
 01/13/2023   22:00:02   ( -70.20,  26.42) 01/13/2023   22:01:06  ( -70.22,  26.41)    1.57                64
 01/13/2023   22:50:46   (  70.09,-166.09) 01/13/2023   22:50:33  (  70.11,-166.09)    2.92                13
 01/13/2023   23:41:20   ( -69.57,   2.00) 01/13/2023   23:40:09  ( -69.67,   0.92)   42.91                71
 01/16/2023   14:16:59   ( -70.18, 142.22) 01/16/2023   14:17:34  ( -70.15, 142.21)    3.34                35
 01/16/2023   15:07:43   (  70.07, -50.29) 01/16/2023   15:07:01  (  70.04, -50.30)    2.79                42
 01/19/2023   05:43:16   (  70.43,  90.29) 01/19/2023   05:44:28  (  70.33,  90.72)   19.58                72
 01/19/2023   06:33:54   ( -70.12,-101.91) 01/19/2023   06:34:00  ( -70.11,-101.96)    2.05                 6
 01/19/2023   07:24:38   (  70.01,  65.57) 01/19/2023   07:23:27  (  70.00,  65.53)    1.97                71
 01/21/2023   22:00:09   (  70.22,-153.61) 01/21/2023   22:00:56  (  70.20,-153.58)    3.05                47
 01/21/2023   22:50:50   ( -70.07,  13.94) 01/21/2023   22:50:26  ( -70.09,  13.90)    2.98                24
 01/24/2023   13:26:35   ( -71.02, 153.56) 01/24/2023   13:27:43  ( -70.91, 155.74)   79.96                68
 01/24/2023   14:17:04   (  70.13, -37.70) 01/24/2023   14:17:22  (  70.14, -37.76)    2.82                18
 01/24/2023   15:07:46   ( -70.03, 129.78) 01/24/2023   15:06:52  ( -70.04, 129.72)    2.54                54