Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 12 5.  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)
 12/05/2020   15:31:44   ( -70.06, 123.53) 12/05/2020   15:31:07  ( -70.05, 123.57)    2.21                37
 12/05/2020   16:21:11   (  69.96, -68.97) 12/05/2020   16:21:52  (  69.97, -69.01)    2.33                41
 12/08/2020   06:58:37   (  70.51,  72.43) 12/08/2020   06:57:26  (  70.55,  71.25)   43.80                71
 12/08/2020   07:48:14   ( -70.02,-120.65) 12/08/2020   07:48:00  ( -70.05,-120.65)    3.34                14
 12/08/2020   08:37:41   (  69.91,  46.84) 12/08/2020   08:38:44  (  69.92,  46.85)    1.69                63
 12/10/2020   23:15:13   (  70.12,-172.26) 12/10/2020   23:14:11  (  70.13,-172.32)    2.50                62
 12/11/2020   00:04:43   ( -70.02,  -4.77) 12/11/2020   00:04:52  ( -69.99,  -4.79)    2.63                 9
 12/11/2020   00:54:18   (  69.46, 162.11) 12/11/2020   00:55:28  (  69.45, 163.32)   47.10                70
 12/13/2020   15:31:43   (  70.06, -56.47) 12/13/2020   15:31:03  (  70.09, -56.47)    3.23                40
 12/13/2020   16:21:13   ( -69.96, 111.02) 12/13/2020   16:21:44  ( -69.94, 111.06)    1.94                31
 12/16/2020   06:58:32   ( -70.81,-107.12) 12/16/2020   06:57:24  ( -70.89,-109.28)   79.19                68
 12/16/2020   07:48:11   (  70.04,  59.39) 12/16/2020   07:47:54  (  70.04,  59.37)    0.81                17
 12/16/2020   08:37:41   ( -69.94,-133.12) 12/16/2020   08:38:36  ( -69.95,-133.17)    2.37                55
 12/18/2020   23:15:13   ( -70.14,   7.76) 12/18/2020   23:14:02  ( -70.11,   7.74)    2.96                71
 12/19/2020   00:04:40   (  70.02, 175.24) 12/19/2020   00:04:46  (  70.01, 175.21)    1.79                 6
 12/19/2020   00:54:13   ( -69.76, -17.49) 12/19/2020   00:55:25  ( -69.75, -17.09)   15.35                72