Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 7 8.  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)
 07/08/2018   20:03:38   (  68.30,-122.20) 07/08/2018   20:04:17  (  68.32,-122.26)    3.26                39
 07/08/2018   20:54:20   ( -68.23,  45.21) 07/08/2018   20:53:47  ( -68.22,  45.25)    2.27                33
 07/11/2018   11:30:01   ( -69.10,-174.80) 07/11/2018   11:31:10  ( -68.95,-173.26)   63.89                69
 07/11/2018   12:20:32   (  68.27,  -6.39) 07/11/2018   12:20:47  (  68.27,  -6.44)    2.26                15
 07/11/2018   13:11:13   ( -68.15, 161.09) 07/11/2018   13:10:17  ( -68.17, 161.07)    3.27                56
 07/14/2018   03:46:41   ( -68.38, -58.05) 07/14/2018   03:47:48  ( -68.40, -58.06)    2.54                67
 07/14/2018   04:37:25   (  68.24, 109.42) 07/14/2018   04:37:15  (  68.28, 109.44)    3.48                10
 07/14/2018   05:28:02   ( -67.90, -82.82) 07/14/2018   05:26:49  ( -67.96, -83.31)   21.27                73
 07/16/2018   20:03:35   ( -68.34,  57.77) 07/16/2018   20:04:18  ( -68.34,  57.75)    0.49                43
 07/16/2018   20:54:19   (  68.22,-134.77) 07/16/2018   20:53:45  (  68.22,-134.75)    0.75                34
 07/19/2018   11:29:59   (  69.04,   5.29) 07/19/2018   11:31:08  (  68.94,   6.73)   58.94                69
 07/19/2018   12:20:29   ( -68.31, 173.58) 07/19/2018   12:20:48  ( -68.29, 173.56)    2.98                19
 07/19/2018   13:11:13   (  68.19, -18.96) 07/19/2018   13:10:15  (  68.16, -18.94)    3.39                58
 07/22/2018   03:46:41   (  68.38, 121.96) 07/22/2018   03:47:47  (  68.38, 121.92)    1.62                66