Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2023 4 19.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2023   04:29:18   ( -71.02, -69.79) 04/21/2023   04:28:09  ( -71.08, -71.51)   62.40                69
 04/21/2023   05:18:54   (  70.37,  96.88) 04/21/2023   05:18:41  (  70.39,  96.93)    2.72                13
 04/21/2023   06:08:23   ( -70.31, -95.58) 04/21/2023   06:09:23  ( -70.30, -95.62)    1.93                60
 04/23/2023   20:45:53   ( -70.47,  45.27) 04/23/2023   20:44:49  ( -70.49,  45.23)    2.22                64
 04/23/2023   21:35:20   (  70.37,-147.24) 04/23/2023   21:35:33  (  70.38,-147.29)    2.03                13
 04/23/2023   22:24:57   ( -69.87,  19.69) 04/23/2023   22:26:07  ( -69.87,  20.81)   43.15                70
 04/26/2023   13:02:19   ( -70.43, 161.10) 04/26/2023   13:01:40  ( -70.43, 161.09)    0.35                39
 04/26/2023   13:51:46   (  70.32, -31.42) 04/26/2023   13:52:24  (  70.33, -31.43)    0.87                38
 04/29/2023   04:29:08   (  70.84, 109.96) 04/29/2023   04:27:57  (  70.91, 108.78)   43.91                71
 04/29/2023   05:18:44   ( -70.40, -83.06) 04/29/2023   05:18:31  ( -70.39, -83.07)    1.16                13
 04/29/2023   06:08:11   (  70.29,  84.42) 04/29/2023   06:09:15  (  70.29,  84.40)    0.77                64
 05/01/2023   20:45:39   (  70.44,-134.75) 05/01/2023   20:44:40  (  70.46,-134.72)    3.37                59
 05/01/2023   21:35:07   ( -70.39,  32.81) 05/01/2023   21:35:21  ( -70.36,  32.76)    3.18                14
 05/01/2023   22:24:45   (  69.66,-160.56) 05/01/2023   22:25:53  (  69.63,-158.82)   67.34                68