Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 3 13.  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)
 03/14/2021   06:58:14   (  70.15,  71.88) 03/14/2021   06:57:18  (  70.12,  71.84)    3.28                56
 03/14/2021   07:47:44   ( -70.03,-120.66) 03/14/2021   07:48:00  ( -70.04,-120.72)    2.88                16
 03/14/2021   08:37:24   (  69.21,  45.88) 03/14/2021   08:38:31  (  69.22,  47.78)   75.02                67
 03/16/2021   23:14:42   (  70.11,-172.30) 03/16/2021   23:14:12  (  70.09,-172.35)    2.51                30
 03/17/2021   00:04:13   ( -69.94,  -4.90) 03/17/2021   00:04:53  ( -69.96,  -4.83)    3.49                40
 03/19/2021   14:41:39   ( -70.39, 136.35) 03/19/2021   14:40:27  ( -70.45, 135.56)   30.25                72
 03/19/2021   15:31:10   (  70.06, -56.48) 03/19/2021   15:31:06  (  70.07, -56.54)    2.35                 4
 03/19/2021   16:20:40   ( -69.96, 111.00) 03/19/2021   16:21:47  ( -69.93, 110.99)    2.64                67
 03/22/2021   06:58:11   ( -70.13,-108.15) 03/22/2021   06:57:15  ( -70.11,-108.14)    1.88                56
 03/22/2021   07:47:38   (  70.02,  59.34) 03/22/2021   07:47:59  (  69.99,  59.35)    2.54                21
 03/22/2021   08:37:20   ( -69.20,-134.14) 03/22/2021   08:38:27  ( -69.22,-132.20)   76.62                67
 03/24/2021   23:14:38   ( -70.08,   7.66) 03/24/2021   23:14:08  ( -70.09,   7.67)    1.18                30
 03/25/2021   00:04:05   (  69.96, 175.15) 03/25/2021   00:04:52  (  69.97, 175.16)    1.21                47