Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 2 21.  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)
 02/23/2021   14:41:47   (  70.60, -43.33) 02/23/2021   14:40:37  (  70.65, -44.78)   53.77                70
 02/23/2021   15:31:25   ( -70.05, 123.49) 02/23/2021   15:31:09  ( -70.04, 123.50)    1.14                16
 02/23/2021   16:20:52   (  69.95, -69.01) 02/23/2021   16:21:53  (  69.92, -69.01)    2.71                61
 02/26/2021   06:58:24   (  70.11,  71.82) 02/26/2021   06:57:22  (  70.14,  71.81)    3.43                62
 02/26/2021   07:47:54   ( -69.99,-120.70) 02/26/2021   07:48:03  ( -69.99,-120.66)    1.88                 9
 02/26/2021   08:37:29   (  69.45,  46.19) 02/26/2021   08:38:38  (  69.40,  47.52)   52.31                69
 02/28/2021   23:14:52   (  70.10,-172.31) 02/28/2021   23:14:16  (  70.09,-172.36)    1.98                36
 03/01/2021   00:04:22   ( -69.99,  -4.83) 03/01/2021   00:04:58  ( -70.00,  -4.90)    2.93                36
 03/03/2021   14:41:45   ( -70.58, 136.63) 03/03/2021   14:40:34  ( -70.64, 135.25)   51.29                71
 03/03/2021   15:31:20   (  70.03, -56.52) 03/03/2021   15:31:09  (  70.06, -56.53)    2.40                11
 03/03/2021   16:20:50   ( -69.93, 110.96) 03/03/2021   16:21:50  ( -69.91, 111.02)    2.94                60
 03/06/2021   06:58:21   ( -70.13,-108.14) 03/06/2021   06:57:19  ( -70.13,-108.17)    1.15                62
 03/06/2021   07:47:48   (  70.02,  59.34) 03/06/2021   07:48:03  (  70.02,  59.30)    1.37                15
 03/06/2021   08:37:26   ( -69.48,-133.77) 03/06/2021   08:38:36  ( -69.45,-132.53)   48.46                70