Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 8 6.  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)
 08/07/2021   22:25:32   ( -70.15,  20.18) 08/07/2021   22:24:23  ( -70.15,  20.11)    2.51                69
 08/07/2021   23:14:59   (  70.04,-172.33) 08/07/2021   23:15:07  (  70.02,-172.38)    3.27                 8
 08/08/2021   00:04:33   ( -69.71,  -5.15) 08/08/2021   00:05:45  ( -69.73,  -4.63)   20.09                72
 08/10/2021   14:42:03   ( -70.10, 135.99) 08/10/2021   14:41:19  ( -70.10, 135.95)    1.52                44
 08/10/2021   15:31:30   (  69.99, -56.52) 08/10/2021   15:32:03  (  69.97, -56.55)    1.87                33
 08/13/2021   06:08:54   (  70.69,  85.12) 08/13/2021   06:07:45  (  70.77,  83.33)   66.14                69
 08/13/2021   06:58:34   ( -70.05,-108.20) 08/13/2021   06:58:15  ( -70.05,-108.21)    1.06                19
 08/13/2021   07:48:01   (  69.93,  59.28) 08/13/2021   07:48:59  (  69.93,  59.28)    0.22                58
 08/15/2021   22:25:35   (  70.09,-159.90) 08/15/2021   22:24:29  (  70.10,-159.84)    2.84                66
 08/15/2021   23:15:05   ( -69.99,   7.60) 08/15/2021   23:15:11  ( -70.01,   7.62)    2.56                 6
 08/16/2021   00:04:38   (  69.54, 174.62) 08/16/2021   00:05:48  (  69.52, 175.65)   40.09                70
 08/18/2021   14:42:04   (  70.08, -44.03) 08/18/2021   14:41:24  (  70.06, -44.01)    1.86                40
 08/18/2021   15:31:34   ( -69.98, 123.47) 08/18/2021   15:32:06  ( -69.97, 123.45)    1.77                32