Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 3 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)
 03/21/2019   19:12:50   ( -68.34,  70.38) 03/21/2019   19:13:35  ( -68.33,  70.39)    0.94                45
 03/21/2019   20:03:34   (  68.20,-122.13) 03/21/2019   20:03:02  (  68.21,-122.11)    1.78                32
 03/24/2019   10:39:15   (  69.14,  17.77) 03/24/2019   10:40:23  (  69.07,  19.56)   71.22                68
 03/24/2019   11:29:43   ( -68.31,-173.81) 03/24/2019   11:30:05  ( -68.31,-173.76)    1.84                22
 03/24/2019   12:20:26   (  68.13,  -6.26) 03/24/2019   12:19:33  (  68.13,  -6.33)    2.84                53
 03/27/2019   02:55:53   (  68.37, 134.58) 03/27/2019   02:57:04  (  68.38, 134.57)    1.51                71
 03/27/2019   03:46:34   ( -68.24, -57.93) 03/27/2019   03:46:35  ( -68.23, -57.98)    2.40                 1
 03/27/2019   04:37:16   (  68.00, 109.68) 03/27/2019   04:36:03  (  68.05, 109.45)   10.98                73
 03/29/2019   19:12:46   (  68.35,-109.61) 03/29/2019   19:13:34  (  68.35,-109.59)    1.29                48
 03/29/2019   20:03:27   ( -68.21,  57.88) 03/29/2019   20:03:05  ( -68.20,  57.87)    1.16                22
 03/29/2019   20:53:54   (  67.17,-133.54) 03/29/2019   20:52:47  (  67.24,-135.59)   88.70                67
 04/01/2019   11:29:38   (  68.28,   6.26) 04/01/2019   11:30:05  (  68.27,   6.19)    2.65                27
 04/01/2019   12:20:20   ( -68.19, 173.68) 04/01/2019   12:19:35  ( -68.18, 173.72)    1.90                45