Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 8 20.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/20/2020   02:56:12   (  68.36, 134.57) 08/20/2020   02:56:47  (  68.36, 134.61)    1.71                35
 08/20/2020   03:46:53   ( -68.23, -57.94) 08/20/2020   03:46:17  ( -68.25, -57.89)    3.04                36
 08/22/2020   18:22:32   ( -68.95,  82.25) 08/22/2020   18:23:42  ( -68.81,  83.40)   48.65                70
 08/22/2020   19:13:06   (  68.29,-109.57) 08/22/2020   19:13:16  (  68.32,-109.56)    3.45                10
 08/22/2020   20:03:47   ( -68.15,  57.92) 08/22/2020   20:02:47  ( -68.15,  57.87)    2.16                60
 08/25/2020   10:39:18   ( -68.39,-161.24) 08/25/2020   10:40:19  ( -68.39,-161.25)    0.83                61
 08/25/2020   11:30:02   (  68.27,   6.22) 08/25/2020   11:29:46  (  68.27,   6.26)    1.79                16
 08/25/2020   12:20:35   ( -67.70, 174.26) 08/25/2020   12:19:24  ( -67.72, 173.25)   42.51                71
 08/28/2020   02:56:13   ( -68.32, -45.38) 08/28/2020   02:56:49  ( -68.34, -45.42)    3.08                36
 08/28/2020   03:46:57   (  68.20, 122.08) 08/28/2020   03:46:16  (  68.23, 122.09)    2.96                41
 08/30/2020   18:22:34   (  68.77, -97.53) 08/30/2020   18:23:44  (  68.68, -96.77)   32.56                70
 08/30/2020   19:13:09   ( -68.30,  70.41) 08/30/2020   19:13:19  ( -68.30,  70.40)    0.62                10
 08/30/2020   20:03:53   (  68.19,-122.13) 08/30/2020   20:02:46  (  68.18,-122.09)    1.90                67
 09/02/2020   10:39:22   (  68.38,  18.76) 09/02/2020   10:40:17  (  68.40,  18.78)    2.16                55
 09/02/2020   11:30:03   ( -68.23,-173.73) 09/02/2020   11:29:48  ( -68.25,-173.78)    2.92                15
 09/02/2020   12:20:35   (  67.47,  -5.48) 09/02/2020   12:19:26  (  67.51,  -6.98)   64.20                69