Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 2 13.  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, -45.46) 02/15/2019   02:56:55  ( -68.35, -45.43)    1.26                40
 02/15/2019   03:46:59   (  68.21, 122.02) 02/15/2019   03:46:23  (  68.18, 122.01)    3.36                36
 02/17/2019   18:22:37   (  68.96, -97.82) 02/17/2019   18:23:47  (  68.83, -96.60)   51.24                70
 02/17/2019   19:13:08   ( -68.29,  70.38) 02/17/2019   19:13:25  ( -68.28,  70.36)    1.37                17
 02/17/2019   20:03:52   (  68.16,-122.15) 02/17/2019   20:02:52  (  68.17,-122.13)    0.81                60
 02/20/2019   10:39:19   (  68.38,  18.73) 02/20/2019   10:40:23  (  68.36,  18.70)    2.08                64
 02/20/2019   11:30:00   ( -68.25,-173.78) 02/20/2019   11:29:53  ( -68.26,-173.78)    1.77                 7
 02/20/2019   12:20:37   (  67.74,  -5.84) 02/20/2019   12:19:26  (  67.81,  -6.67)   35.78                71
 02/23/2019   02:56:12   (  68.33, 134.56) 02/23/2019   02:56:52  (  68.33, 134.54)    1.17                40
 02/23/2019   03:46:53   ( -68.20, -57.95) 02/23/2019   03:46:22  ( -68.23, -57.94)    3.31                31
 02/25/2019   18:22:34   ( -69.11,  81.99) 02/25/2019   18:23:43  ( -69.01,  83.63)   65.89                69
 02/25/2019   19:13:05   (  68.29,-109.61) 02/25/2019   19:13:21  (  68.28,-109.63)    1.57                16
 02/25/2019   20:03:46   ( -68.15,  57.89) 02/25/2019   20:02:51  ( -68.18,  57.89)    3.42                55