Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 1 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)
 01/15/2020   06:58:30   ( -70.38,-107.76) 01/15/2020   06:57:18  ( -70.41,-108.52)   28.59                72
 01/15/2020   07:48:01   (  70.06,  59.42) 01/15/2020   07:47:57  (  70.04,  59.36)    3.25                 4
 01/15/2020   08:37:31   ( -69.95,-133.10) 01/15/2020   08:38:39  ( -69.94,-133.18)    3.01                68
 01/17/2020   23:15:04   ( -70.08,   7.69) 01/17/2020   23:14:05  ( -70.09,   7.75)    2.42                59
 01/18/2020   00:04:31   (  69.97, 175.18) 01/18/2020   00:04:49  (  69.98, 175.22)    1.97                18
 01/18/2020   00:54:11   ( -69.32, -18.08) 01/18/2020   00:55:20  ( -69.30, -16.47)   63.30                69
 01/20/2020   15:31:32   ( -70.11, 123.60) 01/20/2020   15:30:58  ( -70.09, 123.52)    3.48                34
 01/20/2020   16:21:00   (  69.94, -68.99) 01/20/2020   16:21:41  (  69.93, -68.93)    2.36                41
 01/23/2020   06:58:25   (  70.45,  72.34) 01/23/2020   06:57:14  (  70.51,  71.33)   38.43                71
 01/23/2020   07:48:01   ( -70.02,-120.65) 01/23/2020   07:47:49  ( -70.04,-120.62)    2.64                12
 01/23/2020   08:37:27   (  69.96,  46.91) 01/23/2020   08:38:33  (  69.94,  46.84)    3.45                66
 01/25/2020   23:15:00   (  70.08,-172.31) 01/25/2020   23:13:59  (  70.10,-172.25)    3.30                61
 01/26/2020   00:04:30   ( -69.98,  -4.82) 01/26/2020   00:04:41  ( -69.99,  -4.77)    2.40                11
 01/26/2020   00:54:06   (  69.36, 161.99) 01/26/2020   00:55:15  (  69.36, 163.46)   57.81                69