Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 2 23.  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   (  70.61, -43.33) 02/23/2021   14:40:37  (  70.65, -44.78)   53.63                70
 02/23/2021   15:31:25   ( -70.05, 123.49) 02/23/2021   15:31:09  ( -70.03, 123.51)    1.83                16
 02/23/2021   16:20:53   (  69.90, -69.08) 02/23/2021   16:21:53  (  69.92, -69.01)    3.41                60
 02/26/2021   06:58:24   (  70.11,  71.83) 02/26/2021   06:57:22  (  70.13,  71.81)    2.21                62
 02/26/2021   07:47:54   ( -70.00,-120.70) 02/26/2021   07:48:03  ( -69.99,-120.65)    2.13                 9
 02/26/2021   08:37:29   (  69.45,  46.20) 02/26/2021   08:38:39  (  69.45,  47.46)   49.12                70
 02/28/2021   23:14:51   (  70.10,-172.30) 02/28/2021   23:14:15  (  70.09,-172.35)    2.35                36
 03/01/2021   00:04:21   ( -69.99,  -4.83) 03/01/2021   00:04:57  ( -70.00,  -4.89)    2.48                36
 03/03/2021   14:41:45   ( -70.58, 136.63) 03/03/2021   14:40:34  ( -70.63, 135.26)   50.76                71
 03/03/2021   15:31:20   (  70.03, -56.52) 03/03/2021   15:31:09  (  70.05, -56.51)    1.34                11
 03/03/2021   16:20:50   ( -69.93, 110.96) 03/03/2021   16:21:51  ( -69.95, 110.95)    3.15                61
 03/06/2021   06:58:21   ( -70.13,-108.15) 03/06/2021   06:57:19  ( -70.12,-108.16)    1.23                62
 03/06/2021   07:47:48   (  70.02,  59.34) 03/06/2021   07:48:03  (  70.01,  59.32)    1.28                15
 03/06/2021   08:37:27   ( -69.42,-133.85) 03/06/2021   08:38:36  ( -69.44,-132.52)   52.07                69
 03/08/2021   23:14:50   ( -70.05,   7.62) 03/08/2021   23:14:13  ( -70.08,   7.68)    3.29                37
 03/09/2021   00:04:16   (  69.99, 175.19) 03/09/2021   00:04:57  (  69.97, 175.15)    3.19                41