Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 12 14.  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)
 12/16/2021   13:52:41   (  70.51, -31.09) 12/16/2021   13:51:30  (  70.60, -32.12)   39.57                71
 12/16/2021   14:42:16   ( -70.13, 135.99) 12/16/2021   14:42:04  ( -70.10, 135.98)    3.48                12
 12/16/2021   15:31:44   (  69.97, -56.60) 12/16/2021   15:32:48  (  69.97, -56.53)    2.74                64
 12/19/2021   06:09:16   (  70.16,  84.27) 12/19/2021   06:08:14  (  70.18,  84.32)    2.83                62
 12/19/2021   06:58:45   ( -70.10,-108.17) 12/19/2021   06:58:56  ( -70.10,-108.24)    2.84                11
 12/19/2021   07:48:22   (  69.44,  58.57) 12/19/2021   07:49:30  (  69.44,  60.03)   57.26                68
 12/21/2021   22:25:44   (  70.12,-159.89) 12/21/2021   22:25:04  (  70.13,-159.83)    2.51                40
 12/21/2021   23:15:14   ( -70.02,   7.59) 12/21/2021   23:15:46  ( -70.04,   7.62)    2.82                32
 12/24/2021   13:52:33   ( -70.91, 149.51) 12/24/2021   13:51:25  ( -70.93, 147.37)   77.97                68
 12/24/2021   14:42:12   (  70.14, -43.98) 12/24/2021   14:41:56  (  70.13, -44.05)    2.78                16
 12/24/2021   15:31:43   ( -69.98, 123.43) 12/24/2021   15:32:37  ( -69.99, 123.48)    2.22                54
 12/27/2021   06:09:14   ( -70.21, -95.64) 12/27/2021   06:08:03  ( -70.20, -95.68)    2.24                71
 12/27/2021   06:58:41   (  70.10,  71.84) 12/27/2021   06:58:47  (  70.09,  71.79)    1.91                 6
 12/27/2021   07:48:14   ( -69.83,-120.90) 12/27/2021   07:49:26  ( -69.84,-120.51)   14.97                72