Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 5 29.  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)
 05/30/2021   14:41:38   (  70.13, -43.98) 05/30/2021   14:40:29  (  70.15, -43.98)    2.06                69
 05/30/2021   15:31:08   ( -70.01, 123.49) 05/30/2021   15:31:10  ( -70.00, 123.57)    3.32                 2
 05/30/2021   16:20:39   (  69.69, -69.31) 05/30/2021   16:21:50  (  69.67, -68.64)   25.87                71
 06/02/2021   06:58:09   (  70.09,  71.85) 06/02/2021   06:57:25  (  70.09,  71.87)    0.86                44
 06/02/2021   07:47:39   ( -69.98,-120.67) 06/02/2021   07:48:07  ( -69.99,-120.66)    1.35                28
 06/04/2021   22:24:59   ( -70.86,  21.23) 06/04/2021   22:23:51  ( -70.93,  18.99)   81.99                68
 06/04/2021   23:14:39   (  70.05,-172.33) 06/04/2021   23:14:20  (  70.04,-172.28)    2.27                19
 06/05/2021   00:04:09   ( -69.94,  -4.85) 06/05/2021   00:05:02  ( -69.94,  -4.81)    1.68                53
 06/07/2021   14:41:43   ( -70.11, 135.99) 06/07/2021   14:40:33  ( -70.14, 136.01)    3.41                70
 06/07/2021   15:31:10   (  70.00, -56.52) 06/07/2021   15:31:16  (  69.99, -56.44)    3.43                 6
 06/07/2021   16:20:43   ( -69.73, 110.74) 06/07/2021   16:21:55  ( -69.72, 111.27)   20.45                72
 06/10/2021   06:58:13   ( -70.12,-108.12) 06/10/2021   06:57:29  ( -70.09,-108.14)    3.27                44
 06/10/2021   07:47:40   (  70.01,  59.37) 06/10/2021   07:48:13  (  69.99,  59.32)    2.77                33