Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 6 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)
 06/26/2021   06:58:18   ( -70.09,-108.14) 06/26/2021   06:57:42  ( -70.07,-108.15)    2.68                36
 06/26/2021   07:47:46   (  69.94,  59.29) 06/26/2021   07:48:26  (  69.95,  59.34)    2.33                40
 06/28/2021   22:25:13   (  70.41,-159.44) 06/28/2021   22:24:02  (  70.45,-160.30)   32.29                71
 06/28/2021   23:14:48   ( -70.02,   7.63) 06/28/2021   23:14:38  ( -70.04,   7.66)    3.01                10
 06/29/2021   00:04:15   (  69.92, 175.13) 06/29/2021   00:05:22  (  69.93, 175.14)    1.10                67
 07/01/2021   14:41:48   (  70.10, -44.00) 07/01/2021   14:40:53  (  70.11, -44.00)    1.14                55
 07/01/2021   15:31:18   ( -69.99, 123.48) 07/01/2021   15:31:35  ( -70.02, 123.46)    2.96                17
 07/01/2021   16:20:58   (  69.17, -69.99) 07/01/2021   16:22:05  (  69.16, -67.98)   79.59                67
 07/04/2021   06:58:18   (  70.07,  71.84) 07/04/2021   06:57:50  (  70.09,  71.79)    2.96                28
 07/04/2021   07:47:48   ( -69.96,-120.68) 07/04/2021   07:48:31  ( -69.94,-120.66)    2.43                43
 07/06/2021   22:25:19   ( -70.25,  20.34) 07/06/2021   22:24:06  ( -70.34,  19.86)   20.15                73
 07/06/2021   23:14:48   (  70.03,-172.33) 07/06/2021   23:14:46  (  70.02,-172.33)    1.56                 2
 07/07/2021   00:04:18   ( -69.93,  -4.84) 07/07/2021   00:05:28  ( -69.92,  -4.87)    1.32                70
 07/09/2021   14:41:50   ( -70.11, 136.01) 07/09/2021   14:40:58  ( -70.11, 135.99)    0.89                52
 07/09/2021   15:31:17   (  69.99, -56.51) 07/09/2021   15:31:42  (  70.00, -56.54)    1.55                25