Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 1 25.  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)
 01/25/2020   04:36:57   (  68.09, 109.64) 01/25/2020   04:35:44  (  68.11, 109.49)    6.73                73
 01/27/2020   19:12:29   (  68.39,-109.60) 01/27/2020   19:13:19  (  68.38,-109.62)    1.47                50
 01/27/2020   20:03:10   ( -68.24,  57.90) 01/27/2020   20:02:49  ( -68.27,  57.89)    2.78                21
 01/27/2020   20:53:38   (  67.26,-133.58) 01/27/2020   20:52:31  (  67.32,-135.56)   85.17                67
 01/30/2020   11:29:25   (  68.37,   6.19) 01/30/2020   11:29:52  (  68.36,   6.23)    1.59                27
 01/30/2020   12:20:06   ( -68.22, 173.70) 01/30/2020   12:19:23  ( -68.21, 173.67)    1.76                43
 02/02/2020   02:55:43   ( -68.78, -45.90) 02/02/2020   02:56:54  ( -68.69, -45.16)   31.79                71
 02/02/2020   03:46:20   (  68.29, 122.05) 02/02/2020   03:46:26  (  68.29, 122.01)    1.81                 6
 02/02/2020   04:37:02   ( -68.20, -70.51) 02/02/2020   04:35:56  ( -68.20, -70.48)    1.39                66
 02/04/2020   19:12:31   ( -68.39,  70.39) 02/04/2020   19:13:31  ( -68.39,  70.35)    1.73                60
 02/04/2020   20:03:15   (  68.27,-122.16) 02/04/2020   20:02:58  (  68.28,-122.15)    0.55                17
 02/04/2020   20:53:47   ( -67.64,  45.95) 02/04/2020   20:52:37  ( -67.68,  44.79)   49.32                70
 02/07/2020   11:29:27   ( -68.37,-173.83) 02/07/2020   11:30:04  ( -68.38,-173.81)    1.02                37
 02/07/2020   12:20:11   (  68.26,  -6.37) 02/07/2020   12:19:31  (  68.25,  -6.31)    2.60                40