Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 4 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)
 04/22/2019   19:12:44   ( -68.33,  70.42) 04/22/2019   19:13:38  ( -68.32,  70.36)    2.83                54
 04/22/2019   20:03:28   (  68.21,-122.11) 04/22/2019   20:03:05  (  68.22,-122.12)    1.27                23
 04/22/2019   20:53:56   ( -67.36,  46.24) 04/22/2019   20:52:47  ( -67.43,  44.61)   70.23                69
 04/25/2019   10:39:16   (  69.40,  17.41) 04/25/2019   10:40:22  (  69.26,  19.78)   94.45                66
 04/25/2019   11:29:39   ( -68.29,-173.76) 04/25/2019   11:30:07  ( -68.31,-173.77)    2.70                28
 04/25/2019   12:20:23   (  68.18,  -6.31) 04/25/2019   12:19:35  (  68.15,  -6.32)    2.34                48
 04/28/2019   02:55:55   (  68.47, 134.45) 04/28/2019   02:57:07  (  68.43, 134.60)    8.12                72
 04/28/2019   03:46:35   ( -68.27, -57.97) 04/28/2019   03:46:38  ( -68.26, -57.97)    0.62                 3
 04/28/2019   04:37:18   (  68.10, 109.55) 04/28/2019   04:36:06  (  68.10, 109.49)    2.83                72
 04/30/2019   19:12:49   (  68.35,-109.63) 04/30/2019   19:13:38  (  68.37,-109.59)    2.75                49
 04/30/2019   20:03:30   ( -68.20,  57.89) 04/30/2019   20:03:09  ( -68.21,  57.85)    2.21                21
 04/30/2019   20:53:58   (  67.22,-133.61) 04/30/2019   20:52:51  (  67.26,-135.59)   85.29                67
 05/03/2019   11:29:44   (  68.30,   6.21) 05/03/2019   11:30:09  (  68.33,   6.23)    3.13                25
 05/03/2019   12:20:26   ( -68.19, 173.66) 05/03/2019   12:19:40  ( -68.17, 173.67)    2.99                46