Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 2 26.  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)
 02/26/2021   06:58:24   (  70.12,  71.83) 02/26/2021   06:57:22  (  70.13,  71.82)    1.07                62
 02/26/2021   07:47:54   ( -70.00,-120.70) 02/26/2021   07:48:03  ( -69.99,-120.65)    2.31                 9
 02/26/2021   08:37:30   (  69.40,  46.13) 02/26/2021   08:38:39  (  69.44,  47.46)   52.28                69
 02/28/2021   23:14:51   (  70.11,-172.30) 02/28/2021   23:14:15  (  70.08,-172.34)    3.00                36
 03/01/2021   00:04:21   ( -69.99,  -4.83) 03/01/2021   00:04:57  ( -70.00,  -4.89)    2.42                36
 03/03/2021   14:41:45   ( -70.58, 136.62) 03/03/2021   14:40:34  ( -70.63, 135.26)   50.76                71
 03/03/2021   15:31:20   (  70.04, -56.52) 03/03/2021   15:31:09  (  70.04, -56.51)    0.98                11
 03/03/2021   16:20:50   ( -69.92, 110.96) 03/03/2021   16:21:50  ( -69.90, 111.02)    3.42                60
 03/06/2021   06:58:21   ( -70.12,-108.16) 03/06/2021   06:57:19  ( -70.12,-108.16)    0.32                62
 03/06/2021   07:47:48   (  70.02,  59.33) 03/06/2021   07:48:03  (  70.01,  59.32)    1.05                15
 03/06/2021   08:37:26   ( -69.47,-133.79) 03/06/2021   08:38:36  ( -69.44,-132.53)   49.22                70
 03/08/2021   23:14:49   ( -70.10,   7.69) 03/08/2021   23:14:13  ( -70.09,   7.66)    2.04                36
 03/09/2021   00:04:16   (  69.99, 175.18) 03/09/2021   00:04:57  (  69.97, 175.14)    2.27                41
 03/11/2021   14:41:42   (  70.40, -43.64) 03/11/2021   14:40:30  (  70.46, -44.47)   31.76                72
 03/11/2021   15:31:16   ( -70.07, 123.53) 03/11/2021   15:31:06  ( -70.05, 123.49)    2.92                10
 03/11/2021   16:20:43   (  69.96, -68.98) 03/11/2021   16:21:50  (  69.94, -69.03)    2.74                67