Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 4 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)
 04/14/2019   19:12:40   (  68.36,-109.61) 04/14/2019   19:13:34  (  68.34,-109.60)    2.88                54
 04/14/2019   20:03:21   ( -68.23,  57.89) 04/14/2019   20:03:04  ( -68.23,  57.90)    0.49                17
 04/14/2019   20:53:52   (  67.39,-133.78) 04/14/2019   20:52:43  (  67.45,-135.36)   67.47                69
 04/17/2019   11:29:36   (  68.30,   6.23) 04/17/2019   11:30:06  (  68.28,   6.20)    2.62                30
 04/17/2019   12:20:17   ( -68.16, 173.73) 04/17/2019   12:19:36  ( -68.18, 173.71)    1.68                41
 04/20/2019   02:55:55   ( -68.74, -45.89) 04/20/2019   02:57:06  ( -68.68, -45.10)   32.90                71
 04/20/2019   03:46:32   (  68.25, 122.07) 04/20/2019   03:46:39  (  68.23, 122.01)    2.76                 7
 04/20/2019   04:37:14   ( -68.16, -70.50) 04/20/2019   04:36:09  ( -68.13, -70.48)    2.94                65
 04/22/2019   19:12:45   ( -68.36,  70.37) 04/22/2019   19:13:45  ( -68.36,  70.37)    0.63                60
 04/22/2019   20:03:29   (  68.25,-122.17) 04/22/2019   20:03:12  (  68.25,-122.11)    2.37                17
 04/22/2019   20:54:01   ( -67.62,  45.94) 04/22/2019   20:52:50  ( -67.70,  44.88)   45.56                71
 04/25/2019   11:29:40   ( -68.31,-173.79) 04/25/2019   11:30:19  ( -68.32,-173.81)    1.67                39
 04/25/2019   12:20:24   (  68.20,  -6.34) 04/25/2019   12:19:46  (  68.21,  -6.30)    2.08                38
 04/28/2019   02:56:06   (  69.01, 133.73) 04/28/2019   02:57:15  (  68.94, 135.17)   58.12                69