Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 8 17.  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, -33.60) 08/18/2019   02:07:08  ( -68.89, -32.43)   47.69                70
 08/18/2019   02:56:33   (  68.35, 134.51) 08/18/2019   02:56:43  (  68.34, 134.55)    1.82                10
 08/18/2019   03:47:14   ( -68.22, -57.99) 08/18/2019   03:46:13  ( -68.22, -57.96)    1.51                61
 08/20/2019   18:22:43   ( -68.40,  82.92) 08/20/2019   18:23:45  ( -68.41,  82.86)    2.73                62
 08/20/2019   19:13:27   (  68.28,-109.61) 08/20/2019   19:13:12  (  68.30,-109.62)    3.10                15
 08/20/2019   20:04:00   ( -67.70,  58.42) 08/20/2019   20:02:49  ( -67.80,  57.42)   43.37                71
 08/23/2019   10:39:38   ( -68.37,-161.27) 08/23/2019   10:40:14  ( -68.37,-161.31)    1.48                36
 08/23/2019   11:30:22   (  68.25,   6.19) 08/23/2019   11:29:41  (  68.26,   6.21)    1.14                41
 08/26/2019   02:05:58   (  68.82, 146.59) 08/26/2019   02:07:08  (  68.71, 147.36)   33.15                70
 08/26/2019   02:56:33   ( -68.34, -45.47) 08/26/2019   02:56:43  ( -68.32, -45.48)    2.53                10
 08/26/2019   03:47:17   (  68.23, 121.99) 08/26/2019   03:46:10  (  68.21, 122.03)    2.85                67
 08/28/2019   18:22:45   (  68.42, -97.11) 08/28/2019   18:23:40  (  68.43, -97.10)    1.68                55
 08/28/2019   19:13:26   ( -68.27,  70.41) 08/28/2019   19:13:11  ( -68.27,  70.34)    2.70                15
 08/28/2019   20:03:58   (  67.51,-121.34) 08/28/2019   20:02:49  (  67.54,-122.86)   64.54                69