Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 8 16.  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)
 08/18/2019   02:05:58   ( -68.96, -33.61) 08/18/2019   02:07:08  ( -68.89, -32.43)   48.12                70
 08/18/2019   02:56:33   (  68.36, 134.50) 08/18/2019   02:56:43  (  68.34, 134.54)    2.92                10
 08/18/2019   03:47:14   ( -68.22, -58.00) 08/18/2019   03:46:13  ( -68.22, -57.96)    1.62                61
 08/20/2019   18:22:43   ( -68.40,  82.91) 08/20/2019   18:23:45  ( -68.41,  82.87)    2.18                62
 08/20/2019   19:13:27   (  68.28,-109.62) 08/20/2019   19:13:12  (  68.30,-109.62)    2.34                15
 08/20/2019   20:04:00   ( -67.71,  58.41) 08/20/2019   20:02:49  ( -67.80,  57.43)   42.80                71
 08/23/2019   10:39:38   ( -68.38,-161.28) 08/23/2019   10:40:14  ( -68.38,-161.29)    0.60                36
 08/23/2019   11:30:22   (  68.26,   6.18) 08/23/2019   11:29:41  (  68.27,   6.22)    1.78                41
 08/26/2019   02:05:58   (  68.83, 146.58) 08/26/2019   02:07:08  (  68.73, 147.38)   34.08                70
 08/26/2019   02:56:33   ( -68.35, -45.48) 08/26/2019   02:56:43  ( -68.34, -45.46)    1.36                10
 08/26/2019   03:47:16   (  68.19, 122.05) 08/26/2019   03:46:11  (  68.17, 121.99)    2.97                65
 08/28/2019   18:22:45   (  68.43, -97.12) 08/28/2019   18:23:41  (  68.41, -97.13)    2.82                56
 08/28/2019   19:13:26   ( -68.28,  70.40) 08/28/2019   19:13:11  ( -68.30,  70.38)    3.09                15
 08/28/2019   20:03:58   (  67.52,-121.36) 08/28/2019   20:02:49  (  67.57,-122.83)   62.85                69