Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 6 18.  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)
 06/20/2019   10:39:24   ( -68.37,-161.27) 06/20/2019   10:40:28  ( -68.36,-161.32)    2.29                64
 06/20/2019   11:30:08   (  68.24,   6.21) 06/20/2019   11:29:55  (  68.25,   6.18)    1.82                13
 06/20/2019   12:20:43   ( -67.78, 174.10) 06/20/2019   12:19:31  ( -67.81, 173.30)   33.62                72
 06/23/2019   02:56:20   ( -68.36, -45.49) 06/23/2019   02:56:56  ( -68.35, -45.46)    1.36                36
 06/23/2019   03:47:04   (  68.23, 121.99) 06/23/2019   03:46:23  (  68.23, 122.04)    2.40                41
 06/25/2019   18:22:39   (  68.70, -97.49) 06/25/2019   18:23:51  (  68.59, -96.91)   26.25                72
 06/25/2019   19:13:15   ( -68.29,  70.36) 06/25/2019   19:13:25  ( -68.28,  70.34)    2.41                10
 06/25/2019   20:03:59   (  68.17,-122.17) 06/25/2019   20:02:52  (  68.15,-122.17)    1.87                67
 06/28/2019   10:39:28   (  68.37,  18.71) 06/28/2019   10:40:21  (  68.40,  18.73)    2.83                53
 06/28/2019   11:30:09   ( -68.23,-173.79) 06/28/2019   11:29:52  ( -68.25,-173.81)    1.85                17
 06/28/2019   12:20:40   (  67.41,  -5.46) 06/28/2019   12:19:31  (  67.45,  -7.09)   69.65                69
 07/01/2019   02:56:23   (  68.32, 134.55) 07/01/2019   02:56:50  (  68.31, 134.51)    2.19                27
 07/01/2019   03:47:05   ( -68.23, -58.02) 07/01/2019   03:46:20  ( -68.22, -57.97)    2.51                45