Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 2 15.  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)
 02/17/2023   14:17:08   ( -70.23, 142.21) 02/17/2023   14:17:35  ( -70.23, 142.26)    2.26                27
 02/17/2023   15:07:52   (  70.11, -50.31) 02/17/2023   15:07:02  (  70.13, -50.24)    3.18                50
 02/20/2023   05:43:20   (  70.29,  90.57) 02/20/2023   05:44:32  (  70.26,  90.56)    3.03                72
 02/20/2023   06:34:02   ( -70.19,-101.96) 02/20/2023   06:34:01  ( -70.20,-101.89)    3.01                 1
 02/20/2023   07:24:43   (  69.93,  65.75) 02/20/2023   07:23:30  (  69.99,  65.45)   13.49                73
 02/22/2023   22:00:13   (  70.22,-153.54) 02/22/2023   22:00:57  (  70.24,-153.58)    2.23                44
 02/22/2023   22:50:55   ( -70.12,  13.93) 02/22/2023   22:50:27  ( -70.13,  13.89)    1.41                28
 02/25/2023   13:26:36   ( -71.00, 153.67) 02/25/2023   13:27:44  ( -70.87, 155.62)   72.33                68
 02/25/2023   14:17:07   (  70.22, -37.75) 02/25/2023   14:17:21  (  70.21, -37.71)    1.57                14
 02/25/2023   15:07:49   ( -70.12, 129.72) 02/25/2023   15:06:51  ( -70.10, 129.76)    2.29                58
 02/28/2023   05:43:15   ( -70.28, -89.37) 02/28/2023   05:44:17  ( -70.26, -89.39)    2.48                62
 02/28/2023   06:33:59   (  70.18,  78.10) 02/28/2023   06:33:43  (  70.20,  78.16)    3.18                16
 02/28/2023   07:24:32   ( -69.60,-113.72) 02/28/2023   07:23:21  ( -69.65,-114.97)   48.70                71