Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 2 14.  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)
 02/15/2019   02:56:15   ( -68.35, -45.47) 02/15/2019   02:56:55  ( -68.35, -45.44)    1.51                40
 02/15/2019   03:46:59   (  68.22, 122.01) 02/15/2019   03:46:22  (  68.23, 122.07)    2.87                37
 02/17/2019   18:22:37   (  68.97, -97.83) 02/17/2019   18:23:46  (  68.89, -96.53)   52.98                69
 02/17/2019   19:13:08   ( -68.30,  70.37) 02/17/2019   19:13:25  ( -68.28,  70.36)    2.46                17
 02/17/2019   20:03:52   (  68.17,-122.16) 02/17/2019   20:02:52  (  68.16,-122.14)    1.21                60
 02/20/2019   10:39:20   (  68.39,  18.72) 02/20/2019   10:40:24  (  68.36,  18.70)    2.84                64
 02/20/2019   11:30:01   ( -68.26,-173.79) 02/20/2019   11:29:54  ( -68.26,-173.78)    0.97                 7
 02/20/2019   12:20:38   (  67.75,  -5.85) 02/20/2019   12:19:27  (  67.81,  -6.67)   35.22                71
 02/23/2019   02:56:12   (  68.34, 134.55) 02/23/2019   02:56:52  (  68.33, 134.54)    1.32                40
 02/23/2019   03:46:53   ( -68.21, -57.96) 02/23/2019   03:46:22  ( -68.23, -57.94)    3.00                31
 02/25/2019   18:22:34   ( -69.12,  81.98) 02/25/2019   18:23:43  ( -69.03,  83.64)   66.94                69
 02/25/2019   19:13:05   (  68.30,-109.62) 02/25/2019   19:13:21  (  68.29,-109.62)    1.12                16
 02/25/2019   20:03:46   ( -68.17,  57.87) 02/25/2019   20:02:52  ( -68.14,  57.83)    3.16                54