Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 3 5.  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)
 03/06/2021   06:58:21   ( -70.09,-108.21) 03/06/2021   06:57:18  ( -70.10,-108.14)    3.16                63
 03/06/2021   07:47:48   (  69.99,  59.29) 03/06/2021   07:48:02  (  69.98,  59.36)    2.61                14
 03/06/2021   08:37:26   ( -69.43,-133.83) 03/06/2021   08:38:35  ( -69.42,-132.50)   52.10                69
 03/08/2021   23:14:49   ( -70.07,   7.64) 03/08/2021   23:14:12  ( -70.07,   7.69)    1.83                37
 03/09/2021   00:04:16   (  69.96, 175.14) 03/09/2021   00:04:56  (  69.95, 175.18)    2.36                40
 03/11/2021   14:41:42   (  70.43, -43.59) 03/11/2021   14:40:31  (  70.49, -44.52)   35.18                71
 03/11/2021   15:31:17   ( -70.04, 123.48) 03/11/2021   15:31:06  ( -70.04, 123.51)    1.07                11
 03/11/2021   16:20:44   (  69.93, -69.02) 03/11/2021   16:21:50  (  69.92, -69.00)    1.85                66
 03/14/2021   06:58:15   (  70.12,  71.84) 03/14/2021   06:57:18  (  70.10,  71.87)    2.52                57
 03/14/2021   07:47:45   ( -70.01,-120.68) 03/14/2021   07:48:00  ( -70.01,-120.67)    0.21                15
 03/14/2021   08:37:24   (  69.24,  45.92) 03/14/2021   08:38:32  (  69.26,  47.74)   71.80                68
 03/16/2021   23:14:42   (  70.08,-172.33) 03/16/2021   23:14:11  (  70.08,-172.32)    0.73                31
 03/17/2021   00:04:12   ( -69.98,  -4.85) 03/17/2021   00:04:53  ( -69.98,  -4.86)    1.24                41