Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 3 9.  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)
 03/11/2021   14:41:42   (  70.41, -43.63) 03/11/2021   14:40:30  (  70.46, -44.46)   31.73                72
 03/11/2021   15:31:16   ( -70.07, 123.53) 03/11/2021   15:31:06  ( -70.06, 123.48)    2.40                10
 03/11/2021   16:20:44   (  69.92, -69.05) 03/11/2021   16:21:50  (  69.94, -69.03)    2.53                66
 03/14/2021   06:58:15   (  70.10,  71.81) 03/14/2021   06:57:18  (  70.11,  71.85)    2.15                57
 03/14/2021   07:47:44   ( -70.04,-120.64) 03/14/2021   07:48:00  ( -70.03,-120.70)    3.02                16
 03/14/2021   08:37:24   (  69.22,  45.89) 03/14/2021   08:38:31  (  69.22,  47.79)   75.02                67
 03/16/2021   23:14:43   (  70.06,-172.36) 03/16/2021   23:14:12  (  70.09,-172.34)    3.14                31
 03/17/2021   00:04:13   ( -69.95,  -4.88) 03/17/2021   00:04:53  ( -69.95,  -4.81)    2.76                40
 03/19/2021   14:41:39   ( -70.40, 136.37) 03/19/2021   14:40:27  ( -70.44, 135.57)   29.93                72
 03/19/2021   15:31:10   (  70.07, -56.46) 03/19/2021   15:31:06  (  70.06, -56.53)    2.62                 4
 03/19/2021   16:20:41   ( -69.91, 110.95) 03/19/2021   16:21:47  ( -69.92, 111.00)    2.42                66
 03/22/2021   06:58:10   ( -70.14,-108.13) 03/22/2021   06:57:15  ( -70.16,-108.20)    3.30                55
 03/22/2021   07:47:37   (  70.03,  59.35) 03/22/2021   07:47:59  (  70.04,  59.28)    3.37                22